2008 General Studies, all questions
UPSC Prelims 2008 · General Studies
Question 117: Economy and Social Development
How much is one barrel of oil approximately equal to?
a131 litres
b159 litres
c257 litres
d321 litres
AnswerThe answer is (b).
One barrel of oil is 42 US gallons, which is about 159 litres. The barrel is the standard unit for crude oil prices and production, with output stated in barrels per day. To remember it, multiply 42 gallons by 3.785 litres per gallon, which gives roughly 159 litres.
Why each option is right or wrong
- (a) 131 litres is well below the 159 litres in a barrel.
- (b) 159 litres is about 42 US gallons.
- (c) 257 litres is too high.
- (d) 321 litres is too high.
Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2008, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.