Question: What type of the converter was used in hungarian locomotives of that time?
Answer: four-pole rotating phase converter

Question: How could the locomotives run on four speed levels?
Answer: motor could be changed using slip rings

Question: What system was adopted in Hungary after WWII?
Answer: Russian

Question: What was the main requirement for electric feeder stations?
Answer: line fed from different feeder stations must be kept strictly isolated

Question: What invention prevented lines from getting mixed?
Answer: Phase Breaks

Question: What was the part of wire in Phase Break sections an arc being drawn from one wire to another?
Answer: The earthed section

Question: How were the drivers warned to start coasting the train?
Answer: warning board

Question: What should the driver do in order to open and close the circuit breaker?
Answer: to shut off power and coast

Question: What nowdays electrification systems can use?
Answer: DC motors which directly use the DC or they may be 3-phase AC motors

Question: What is the main action AC and DC systems have to deal with?
Answer: converting and transporting

Question: What type of losses happen during conversion and transmission in wires and electronics?
Answer: ohmic losses

Question: What kind of losses take place in transformers and inductors during conversion/transmission process?
Answer: magnetic field losses

Question: What two systems were compare in the Soviet Union in 1970?
Answer: 3 kV DC and 25 kV AC (50 Hz

Question: Which system had higher losses in overhead wires?
Answer: 3 kV DC

Question: Which system was used in Soviet Union after all calculations?
Answer: 3 kV DC

Question: What came with lesser lesser cost mobile conversion hardware or stationary hardware?
Answer: stationary hardware

Question: What can be seen in the newly electrified lines?
Answer: "sparks effect"

Question: What can electrification of modern trains effect? 
Answer: patronage / revenue

Question: How can better service quality be achieved?
Answer: rolling stock overhaul / replacement

Question: What is a major factor whn it comes to electrification?
Answer: Network effects

Question: What was the reason some electrifications were removed after a while?
Answer: through traffic to non-electrified lines

Question: What can be a drawback of electrification of long distance freight trains?
Answer: electrification to isolated areas

Question: Where can the issue of through traffic benefits occur?
Answer: long distance trips

Question: What does the increasing demand for container traffic make companies use more often?
Answer: diesel trains

Question: What is the other issue that comes to sight when using electrification system?
Answer: connections between different electrical services

Question: Why the commuter lines built to different standards can cause be complicated?
Answer: the implications on the sections it is connecting

Question: What is the solution many lines came up with in order to avoid replacing present rolling stock?
Answer: to be overlaid with multiple electrification standards

Question: Why are disel trains  still used on electrified routes?
Answer: due to incompatibility of electrification standards

Question: Which of two can be more efficiently electricified?
Answer: Central station

Question: How can electric power plant become more power efficient?
Answer: it will shut down its least efficient generators

Question: How can electric train be more energy efficient?
Answer: by regenerative braking

Question: Which type of train continues to use energy while coasting or being stopped?
Answer: diesel

Question: What causes electric trains to waste energy?
Answer: cooling blowers

Question: Can renewable source of electricity be used in mobile power plants?
Answer: unsuitable

Question: What is the recent incentive in  order to overcome oil scarcity?
Answer: to substitute other fuels

Question: What type of natural resources is more scarce?
Answer: liquid fuel

Question: What research can be used in the future if translated?
Answer: Soviet studies from the 1980s

Question: What type of trains became more energy-efficient in the former Soviet Union?
Answer: electric

Question: What year could be marked as year when electric railways more efficient than diesel ones?
Answer: 1965

Question: How much fuel did electric train used less than diesel in the middle of 1970 in USSR?
Answer: 25% less fuel per ton-km

Question: What could be a factor of lower energy consumption for electric trains?
Answer: better operating conditions on electrified lines

Question: How much more expensive was diesel compare to electricity per unit?
Answer: 1.5 times more (per unit of heat energy content

Question: What caused the energy efficiency to go up?
Answer: energy-intensity dropping

Question: What type of locomotives got improved during 1950-1973 in Soviet Union?
Answer: electric

Question: How much of energy was saved and re-used due to regenerative braking in 1989?
Answer: 2.65%

Question: Was there an energy efficiency improvement in the period 1974 through 1980?
Answer: no improvement

Question: Elimination of what helped the efficiency of diesel traction to go up?
Answer: 2-axle freight cars

Question: How many people speak Spanish as a first or second language in the United States?
Answer: There are 45 million Hispanophones who speak Spanish as a first or second language in the United States,

Question: How many Hispanics speak English too?
Answer: Roughly half of all American Spanish-speakers also speak English "very well," based on their self-assessment in the U.S. Census.

Question: What type of language id Spanish?
Answer: Spanish is the Romance language and the Indo-European language with the largest number of native speakers in the world.

Question: What other language is often spoken in the United states?
Answer: The Spanish language is the second most spoken language in the United States.

Question: How many Spanish speaking students are there in the United States?
Answer: six million Spanish language students.

Question: How old is the Spanish language in the United States?
Answer: The Spanish language has been present in what is now the United States since the 16th and 17th centuries

Question: Where in the United States did the Spanish explore?
Answer: The Spanish explorers explored areas of 42 future U.S. states

Question: Were there states ruled by the Spanish?
Answer: western regions of the Louisiana Territory were under Spanish rule between 1763 to 1800,

Question: Did the Spanish conquer land in the United States?
Answer: Spanish colonization in North America that would later become the states of Florida, Texas, Colorado, New Mexico, Arizona, Nevada, Utah, and California.

Question: Do the Spanish have a legacy in America from their forefathers?
Answer: after the French and Indian War, further extending the Spanish influence throughout modern-day United States of America.

Question: When did the Spanish arrive to America?
Answer: Spanish arrived in the territory of the modern United States with Ponce de León in 1513.

Question: Did Europeans speak Spanish in America?
Answer: Spanish was the language spoken by the first permanent European settlers in North America.

Question: How was St. Augustine founded?
Answer: the Spaniards, by way of Juan Ponce de León, founded St. Augustine, Florida

Question: Where is the oldest settlement in America?
Answer: St. Augustine, Florida

Question: What is the oldest city of the United States territory?
Answer: The oldest city in all of the U.S. territory, as of 1898, is San Juan, capital of Puerto Rico

Question: Was Texas a part of Mexico?
Answer: In 1821, after Mexico's War of Independence from Spain, Texas was part of the United Mexican States as the state of Coahuila y Tejas

Question: When did the Americans come to Texas?
Answer: A large influx of Americans soon followed, originally with the approval of Mexico's president. In 1836