BackpropBuff/adversarial_qa_adversarialQA huggingface dataset:
Question: What is Deric's hidden name?West spent much of the late-1990s producing records for a number of well-known artists and music groups. The third song on Foxy Brown's second studio album Chyna Doll was produced by West. Her second effort subsequently became the very first hip-hop album by a female rapper to debut at the top of the U.S. Billboard 200 chart in its first week of release. West produced three of the tracks on Harlem World's first and only album The Movement alongside Jermaine Dupri and the production duo Trackmasters. His songs featured rappers Nas, Drag-On, and R&B singer Carl Thomas. The ninth track from World Party, the last Goodie Mob album to feature the rap group's four founding members prior to their break-up, was co-produced by West with his manager Deric "D-Dot" Angelettie. At the close of the millennium, West ended up producing six songs for Tell 'Em Why U Madd, an album that was released by D-Dot under the alias of The Madd Rapper; a fictional character he created for a skit on The Notorious B.I.G.'s second and final studio album Life After Death. West's songs featured guest appearances from rappers such as Ma$e, Raekwon, and Eminem.

Answer:The Madd Rapper
Question: How is he characterize?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents
Question: __ began performing at the age of 2.West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:Mike Myers
Question: West is an example of what industry?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:artists and entertainers
Question: What happened?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims
Question: What was the catalyst of what he said?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:Hurricane Katrina
Question: What was the issue with West?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people
Question: __ formed over the Bahamas.West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:Hurricane Katrina
Question: How did this affect him?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents
Question: The outspoken and controversial celebrity criticized a person of what rank?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:President
Question: Katrina was a?West has been an outspoken and controversial celebrity throughout his career, receiving both criticism and praise from many, including the mainstream media, other artists and entertainers, and two U.S. presidents. On September 2, 2005, during a benefit concert for Hurricane Katrina relief on NBC, A Concert for Hurricane Relief, West (a featured speaker) accused President George W. Bush of not "car[ing] about black people". When West was presenting alongside actor Mike Myers, he deviated from the prepared script to criticize the media's portrayal of hurricane victims, saying:

Answer:hurricane
Question: What qualifier did the site assign when it said that MBDTF was the best album of the decade?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:so far
Question: Who is a musical artist: Pusha T, Yeezus, or Pitchfork?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:Pusha T
Question: Which album almost made it to second place on the chart?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:"Runaway"
Question: Which is not an album: Yeezus, My Beautiful Dark Twisted Fantasy, or Runaway?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:Runaway
Question: Where would one go to find the entity that ranks albums?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:online
Question: What is the entity that labeled Yeezus in 8th?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:The Pitchfork
Question: What is the sky when the sun goes down?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:Dark
Question: What is something opposite of worst?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:best
Question: What is another way to refer to seven days?The Pitchfork online music publication ranked My Beautiful Dark Twisted Fantasy as the world's best album of the decade "so far"—between 2010 and 2014—on August 19, 2014, while Yeezus was ranked in the eighth position of a list of 100 albums. During the same week, the song "Runaway" (featuring Pusha T) was ranked in the third position in the publication's list of the 200 "best tracks" released since 2010.

Answer:week
Question: Name the second style of music listed that Kanye wanted in his albumSessions for West's sixth solo effort begin to take shape in early 2013 in his own personal loft's living room at a Paris hotel. Determined to "undermine the commercial", he once again brought together close collaborators and attempted to incorporate Chicago drill, dancehall, acid house, and industrial music. Primarily inspired by architecture, West's perfectionist tendencies led him to contact producer Rick Rubin fifteen days shy of its due date to strip down the record's sound in favor of a more minimalist approach. Initial promotion of his sixth album included worldwide video projections of the album's music and live television performances. Yeezus, West's sixth album, was released June 18, 2013 to rave reviews from critics. It became the rapper's sixth consecutive number one debut, but also marked his lowest solo opening week sales. Def Jam issued "Black Skinhead" to radio in July 2013 as the album's lead single. On September 6, 2013, Kanye West announced he would be headlining his first solo tour in five years, to support Yeezus, with fellow American rapper Kendrick Lamar accompanying him along the way.

Answer:dancehall
Question: Name the third style of music Kanye wanted to useSessions for West's sixth solo effort begin to take shape in early 2013 in his own personal loft's living room at a Paris hotel. Determined to "undermine the commercial", he once again brought together close collaborators and attempted to incorporate Chicago drill, dancehall, acid house, and industrial music. Primarily inspired by architecture, West's perfectionist tendencies led him to contact producer Rick Rubin fifteen days shy of its due date to strip down the record's sound in favor of a more minimalist approach. Initial promotion of his sixth album included worldwide video projections of the album's music and live television performances. Yeezus, West's sixth album, was released June 18, 2013 to rave reviews from critics. It became the rapper's sixth consecutive number one debut, but also marked his lowest solo opening week sales. Def Jam issued "Black Skinhead" to radio in July 2013 as the album's lead single. On September 6, 2013, Kanye West announced he would be headlining his first solo tour in five years, to support Yeezus, with fellow American rapper Kendrick Lamar accompanying him along the way.

Answer:acid house
Question: What type of music is considered dark and violentSessions for West's sixth solo effort begin to take shape in early 2013 in his own personal loft's living room at a Paris hotel. Determined to "undermine the commercial", he once again brought together close collaborators and attempted to incorporate Chicago drill, dancehall, acid house, and industrial music. Primarily inspired by architecture, West's perfectionist tendencies led him to contact producer Rick Rubin fifteen days shy of its due date to strip down the record's sound in favor of a more minimalist approach. Initial promotion of his sixth album included worldwide video projections of the album's music and live television performances. Yeezus, West's sixth album, was released June 18, 2013 to rave reviews from critics. It became the rapper's sixth consecutive number one debut, but also marked his lowest solo opening week sales. Def Jam issued "Black Skinhead" to radio in July 2013 as the album's lead single. On September 6, 2013, Kanye West announced he would be headlining his first solo tour in five years, to support Yeezus, with fellow American rapper Kendrick Lamar accompanying him along the way.

Answer:Chicago drill
Question: What country pushed the boundaries for railway power delivery?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:Soviet Union
Question: At the same voltage it has more loss?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:AC
Question: DC produces fewer problems with what kinds of support infrastructure used with trains?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:signalling and communications
Question: Why is DC usually used for bulk power transmission?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:less loss
Question: What type of transportation system sometimes uses AC power?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:railroad
Question: DC is less hazardous than AC because it generates less?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:electromagnetic radiation
Question: Can supply constant power without having to use multiple ungrounded wires?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:DC
Question: Electromagnetic radiation is a drawback with its' use?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:AC
Question: Power factor problems are a drawback with its' use?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:AC
Question: What is a significant problem with AC power that DC power avoids?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:Constant power with AC requires three-phase transmission with at least two ungrounded wires
Question: Which is better for bulk transmission if you want to avoid loss, AC or DC power?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:DC
Question: What type of transportation system sometimes uses DC power?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:railroad
Question: What makes DC an attractive alternative to AC trains?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:DC also avoids the power factor problems of AC
Question: Why has 3-phase AC transmission not been relied on more often for trains?There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.

Answer:substantial complexity
Question: What was the area used for on the southern side of the London tramways where the conduit wove between the rails?Some street trams (streetcars) used conduit third-rail current collection. The third rail was below street level. The tram picked up the current through a plough (U.S. "plow") accessed through a narrow slot in the road. In the United States, much (though not all) of the former streetcar system in Washington, D.C. (discontinued in 1962) was operated in this manner to avoid the unsightly wires and poles associated with electric traction. The same was true with Manhattan's former streetcar system. The evidence of this mode of running can still be seen on the track down the slope on the northern access to the abandoned Kingsway Tramway Subway in central London, United Kingdom, where the slot between the running rails is clearly visible, and on P and Q Streets west of Wisconsin Avenue in the Georgetown neighborhood of Washington DC, where the abandoned tracks have not been paved over. The slot can easily be confused with the similar looking slot for cable trams/cars (in some cases, the conduit slot was originally a cable slot). The disadvantage of conduit collection included much higher initial installation costs, higher maintenance costs, and problems with leaves and snow getting in the slot. For this reason, in Washington, D.C. cars on some lines converted to overhead wire on leaving the city center, a worker in a "plough pit" disconnecting the plough while another raised the trolley pole (hitherto hooked down to the roof) to the overhead wire. In New York City for the same reasons of cost and operating efficiency outside of Manhattan overhead wire was used. A similar system of changeover from conduit to overhead wire was also used on the London tramways, notably on the southern side; a typical changeover point was at Norwood, where the conduit snaked sideways from between the running rails, to provide a park for detached shoes or ploughs.

Answer:a park for detached shoes or ploughs
Question: The plow of a tram connects to what to power the tram?Some street trams (streetcars) used conduit third-rail current collection. The third rail was below street level. The tram picked up the current through a plough (U.S. "plow") accessed through a narrow slot in the road. In the United States, much (though not all) of the former streetcar system in Washington, D.C. (discontinued in 1962) was operated in this manner to avoid the unsightly wires and poles associated with electric traction. The same was true with Manhattan's former streetcar system. The evidence of this mode of running can still be seen on the track down the slope on the northern access to the abandoned Kingsway Tramway Subway in central London, United Kingdom, where the slot between the running rails is clearly visible, and on P and Q Streets west of Wisconsin Avenue in the Georgetown neighborhood of Washington DC, where the abandoned tracks have not been paved over. The slot can easily be confused with the similar looking slot for cable trams/cars (in some cases, the conduit slot was originally a cable slot). The disadvantage of conduit collection included much higher initial installation costs, higher maintenance costs, and problems with leaves and snow getting in the slot. For this reason, in Washington, D.C. cars on some lines converted to overhead wire on leaving the city center, a worker in a "plough pit" disconnecting the plough while another raised the trolley pole (hitherto hooked down to the roof) to the overhead wire. In New York City for the same reasons of cost and operating efficiency outside of Manhattan overhead wire was used. A similar system of changeover from conduit to overhead wire was also used on the London tramways, notably on the southern side; a typical changeover point was at Norwood, where the conduit snaked sideways from between the running rails, to provide a park for detached shoes or ploughs.

Answer:third rail
Question: What system was more cost efficient, conduit third rail current collection or overhead wire?Some street trams (streetcars) used conduit third-rail current collection. The third rail was below street level. The tram picked up the current through a plough (U.S. "plow") accessed through a narrow slot in the road. In the United States, much (though not all) of the former streetcar system in Washington, D.C. (discontinued in 1962) was operated in this manner to avoid the unsightly wires and poles associated with electric traction. The same was true with Manhattan's former streetcar system. The evidence of this mode of running can still be seen on the track down the slope on the northern access to the abandoned Kingsway Tramway Subway in central London, United Kingdom, where the slot between the running rails is clearly visible, and on P and Q Streets west of Wisconsin Avenue in the Georgetown neighborhood of Washington DC, where the abandoned tracks have not been paved over. The slot can easily be confused with the similar looking slot for cable trams/cars (in some cases, the conduit slot was originally a cable slot). The disadvantage of conduit collection included much higher initial installation costs, higher maintenance costs, and problems with leaves and snow getting in the slot. For this reason, in Washington, D.C. cars on some lines converted to overhead wire on leaving the city center, a worker in a "plough pit" disconnecting the plough while another raised the trolley pole (hitherto hooked down to the roof) to the overhead wire. In New York City for the same reasons of cost and operating efficiency outside of Manhattan overhead wire was used. A similar system of changeover from conduit to overhead wire was also used on the London tramways, notably on the southern side; a typical changeover point was at Norwood, where the conduit snaked sideways from between the running rails, to provide a park for detached shoes or ploughs.

Answer:overhead wire
Question: What is the main advantage of conduit third rail current collections as seen in Washington, D.C. and Manhattan?Some street trams (streetcars) used conduit third-rail current collection. The third rail was below street level. The tram picked up the current through a plough (U.S. "plow") accessed through a narrow slot in the road. In the United States, much (though not all) of the former streetcar system in Washington, D.C. (discontinued in 1962) was operated in this manner to avoid the unsightly wires and poles associated with electric traction. The same was true with Manhattan's former streetcar system. The evidence of this mode of running can still be seen on the track down the slope on the northern access to the abandoned Kingsway Tramway Subway in central London, United Kingdom, where the slot between the running rails is clearly visible, and on P and Q Streets west of Wisconsin Avenue in the Georgetown neighborhood of Washington DC, where the abandoned tracks have not been paved over. The slot can easily be confused with the similar looking slot for cable trams/cars (in some cases, the conduit slot was originally a cable slot). The disadvantage of conduit collection included much higher initial installation costs, higher maintenance costs, and problems with leaves and snow getting in the slot. For this reason, in Washington, D.C. cars on some lines converted to overhead wire on leaving the city center, a worker in a "plough pit" disconnecting the plough while another raised the trolley pole (hitherto hooked down to the roof) to the overhead wire. In New York City for the same reasons of cost and operating efficiency outside of Manhattan overhead wire was used. A similar system of changeover from conduit to overhead wire was also used on the London tramways, notably on the southern side; a typical changeover point was at Norwood, where the conduit snaked sideways from between the running rails, to provide a park for detached shoes or ploughs.

Answer:to avoid the unsightly wires and poles
Question: A slot in the road that did carry a power cable was a slot used by what type of tram?Some street trams (streetcars) used conduit third-rail current collection. The third rail was below street level. The tram picked up the current through a plough (U.S. "plow") accessed through a narrow slot in the road. In the United States, much (though not all) of the former streetcar system in Washington, D.C. (discontinued in 1962) was operated in this manner to avoid the unsightly wires and poles associated with electric traction. The same was true with Manhattan's former streetcar system. The evidence of this mode of running can still be seen on the track down the slope on the northern access to the abandoned Kingsway Tramway Subway in central London, United Kingdom, where the slot between the running rails is clearly visible, and on P and Q Streets west of Wisconsin Avenue in the Georgetown neighborhood of Washington DC, where the abandoned tracks have not been paved over. The slot can easily be confused with the similar looking slot for cable trams/cars (in some cases, the conduit slot was originally a cable slot). The disadvantage of conduit collection included much higher initial installation costs, higher maintenance costs, and problems with leaves and snow getting in the slot. For this reason, in Washington, D.C. cars on some lines converted to overhead wire on leaving the city center, a worker in a "plough pit" disconnecting the plough while another raised the trolley pole (hitherto hooked down to the roof) to the overhead wire. In New York City for the same reasons of cost and operating efficiency outside of Manhattan overhead wire was used. A similar system of changeover from conduit to overhead wire was also used on the London tramways, notably on the southern side; a typical changeover point was at Norwood, where the conduit snaked sideways from between the running rails, to provide a park for detached shoes or ploughs.

Answer:streetcar