Question: Kolkata is the capital of the Indian state of West Bengal. Located on the east bank of the Hooghly River, it is the principal commercial, cultural, and educational centre of East India, while the Port of Kolkata is India's oldest operating port and its sole major riverine port. In 2011, the city had a population of 4.5million, while the population of the city and its suburbs was 14.1million, making it the third-most populous metropolitan area in India. Recent estimates of Kolkata Metropolitan Area's economy have ranged from $60 to $150 billion (GDP adjusted for purchasing power parity) making it third most-productive metropolitan area in India, after Mumbai and Delhi. Kolkata ( is also known as Calcutta , the official name until 2001).

In the late 17th century, the three villages that predated Calcutta were ruled by the Nawab of Bengal under Mughal suzerainty. After the Nawab granted the East India Company a trading licence in 1690, the area was developed by the Company into an increasingly fortified trading post. Nawab Siraj ud-Daulah occupied Calcutta in 1756, and the East India Company retook it the following year. In 1793 the East India company was strong enough to abolish Nizamat (local rule), and assumed full sovereignty of the region. Under the company rule, and later under the British Raj, Calcutta served as the capital of British-held territories in India until 1911, when its perceived geographical disadvantages, combined with growing nationalism in Bengal, led to a shift of the capital to New Delhi. Calcutta was the centre for the Indian independence movement; it remains a hotbed of contemporary state politics. Following Indian independence in 1947, Kolkata, which was once the centre of modern Indian education, science, culture, and politics, suffered several decades of economic stagnation. 1. What was Kolkata know of previously?
2. When did it change?
3. What waterway is it located on?
4. What was the population of the city in 2011, not including the suburbs?
5. What was the population of the city in 2011, including the suburbs?
6. Is it a capital city?
7. What is it a capital of?
8. What country is it located in?
9. Is it the largest city in that country?
10. How many are larger?
11. What are they?
12. What organization was given a trading license for this region in the late 17th century?
13. In what year?
14. In what year did they abolish local rule, and gain full sovereignty of the region?
15. Who did they overthrow?
16. Was Kolkata known as an educational center? Provide a numbered list of answers.
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A numbered of answers: 1. Calcutta
2. 2001
3. Hooghly River
4. 4.5million
5. 14.1million
6. yes
7. West Bengal
8. India
9. no
10. Two
11. Mumbai and Delhi.
12. East India Company
13. 1690
14. 1793
15. Nizamat
16. yes

Question: International standard ISO 7736 defines a standard size for car audio head units and enclosures. The standard was originally established by the German standards body "Deutsches Institut fur Normung" as DIN 75490, and is therefore commonly referred to as the "DIN car radio size". It was adopted as an international standard in 1984.

Head units generally come in either "single DIN" (180 x 50mm panel) or "double DIN" (180 x 100mm panel) size. The depth is not standardized; as a result, some cars such as the Opel Manta / Ascona have the correct sized front aperture but will accommodate few DIN sized radios other than the original due to the shallow depth; this despite the vehicle being manufactured as late as 1988. The US standard for a DIN radio is 7" x 2" (although the actual 180 mm width converts to something like 7-3/32" so most people use 7-1/8" to allow for clearance) and the Double DIN sized radio is a 7" x 4". Some radios in Japanese Kei cars do not conform to the DIN standard however.

For removing the unit, a pair of U-shaped devices are often used. The devices are inserted in the two pairs of holes, at either end of the stereo fascia, the action releasing the unit from the mounting and providing a pair of handles to pull the unit free. These tools vary from manufacturer to manufacturer. Becker uses a pair of key-shaped removal tools, with one hole each. Often a set of thin screwdrivers will work just as well. 1. What was a car audio head unit standard adopted?
2. Is it internationally recognized?
3. Which country created the standardization/
4. Which organization, specifically?
5. What is the standard commonly referred to?
6. And its formal/technical name?
7. What is the international standard known as today?
8. How many sizes are commonly used?
9. What are they?
10. What is the US standard?
11. What about the double DIN size?
12. Which area's cars don't use this standard?
13. Which cars are they?
14. What tools allow you to remove a head unit?
15. Are they universally identical?
16. If you didn't have access to those tools, what else could you use?
17. How many holes does the Becker style of tool use? Provide a numbered list of answers.
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A numbered of answers:
1. in 1984
2. yes
3. Germany
4. "Deutsches Institut fur Normung"
5. "DIN car radio size"
6. DIN 75490
7. International standard ISO 7736
8. two
9. "single DIN" (180 x 50mm panel) or "double DIN" (180 x 100mm panel) size.
10. 7" x 2"
11. 7" x 4"
12. Japan's
13. Kei
14. a pair of U-shaped devices
15. no
16. a set of thin screwdrivers
17. one hole on each pair