2026 Prelims Paper 2 UPSC Question Paper

2026 Prelims Paper 2 UPSC Questions

41.
An explosion takes place at a certain distance from an army camp. As soon as the sensor in the camp receives the sound of the explosion, a drone starts flying towards the spot of explosion. The drone clicks a picture from the spot and the camp receives it at the same time. Immediately another drone starts flying to the spot and it also sends a picture as soon as it reaches the spot. The two pictures were received at 5:02 PM and 5:05 PM, respectively. If the speed of the drones is 30 m/s, at what time did the explosion take place? Assume that the speed of sound is 300 m/s.
A.
4:59:00 PM
B.
4:59:02 PM
C.
4:58:42 PM
D.
4:56:32 PM
ANSWER :
C. 4:58:42 PM
42.

The digit in the unit place of the number 6129 x 7307 is

A.

2

B.

4

C.

8

D.

6

ANSWER :

C. 8

43.
A person saves 10% of his salary every month. If his salary increases by 12% and his expenditure increases by 10%, then what will be the change in his saving per month?
A.
20% increase
B.
30% increase
C.
03% decrease
D.
02% decrease
ANSWER :
B. 30% increase
44.
P has a son and a daughter. S is the mother of T. S is R's spouse. Q and R are children of P. Then how is Q related to S?
A.
Q is a sister of S
B.
Q is a daughter of S
C.
Q is the mother of S
D.
Q is a sister of S's husband
ANSWER :
D. Q is a sister of S's husband
45.
How many three-digit numbers can be expressed as an integral power of 2?
A.
1
B.
2
C.
3
D.
4
ANSWER :
C. 3
46.
Directions for the next 2 (two) items:
Read the following passage and answer the items that follow. Your answers should be based solely on the passage.
Passage:
The key source of the battle for clean skies and clear lungs is the fuel we burn - from household chulhas to thermal power plants. In most cases, it is biomass or coal. The Supreme Court banned the use of pet coke, which is among the dirtiest of such fuels. The Delhi Government banned the use of coal, which was later extended to the entire National Capital Region. It was also agreed that thermal power plants would either clean up or be shut down; action on this has been patchy, to say the least. The lesson from the transition to CNG is that for a ban to be effective, people need alternatives. When diesel buses were stopped, the CNG supply had to be assured; it also had to be feasible in terms of cost. The Supreme Court agreed that fiscal measures were needed to keep clean fuel cheaper than dirty fuel. Now, even as coal is banned, the price of natural gas makes industry uncompetitive.

Which of the following inferences is/are correct?
1. The source of the energy we consume is key to the battle for cleaner air.
2. Bans are effective where the will is strong and people are convinced that such bans are for the greater good of society.
3. There is judicial approval for a policy that intervenes fiscally to make benevolent pricing for cleaner fuel easier.
Select the answer using the code given below.
A.
1 and 2
B.
2 and 3
C.
1 and 3
D.
1 only
ANSWER :
C. 1 and 3
47.
Which of the following statements is/are correct?
1. Thermal power stations in Delhi were required to summarily shut down.
2. CNG supplies had to be assured once diesel vehicles were prohibited from plying.
3. The Supreme Court banned the use of coal across the National Capital Region.
Select the answer using the code given below.
A.
1 and 2
B.
3 only
C.
2 only
D.
2 and 3
ANSWER :
C. 2 only
48.
Consider the following statements:
Every red is blue. Every blue is green. Every green is yellow.
Which of the following statements denoted by P, Q and R are correct?
P. Every blue is yellow.
Q. Every red is green.
R. Every red is yellow.
Select the answer using the code given below.
A.
P and Q only
B.
Q and R only
C.
P and R only
D.
P, Q and R
ANSWER :
D. P, Q and R
49.
How many times does 5 appear in all two-digit positive integers?
A.
18
B.
19
C.
20
D.
21
ANSWER :
B. 19
50.
X travels 6 km on a bicycle with average speeds of 5 km per hour, 10 km per hour and 4 km per hour during the first 1 km, the next 2 km and the remaining 3 km, respectively. Y travels the same distances with average speeds of 4 km per hour, 10 km per hour and 5 km per hour, respectively. If both X and Y start their journeys at the same time, how many minutes early will Y complete the journey?
A.
3
B.
4
C.
5
D.
6
ANSWER :
D. 6