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Past Questions — 2025

SI (Excise) • 2025 • Paper-II

The force that keeps an object moving in a circular path is -

A) Centripetal force
B) Frictional force
C) Gravitational force
D) Magnetic force
Option A is correct: Centripetal force.
SI (Excise) • 2025 • Paper-II

LCM of 24, 36 and 60 is —

A) 360
B) 450
C) 420
D) 320
Option C is correct: 420.
SI (Excise) • 2025 • Paper-II

A person covers a distance of 20 km by bus in 35 minutes. After deboarding the bus, he took rest for 20 minutes and covers another 10 km by a taxi in 20 minutes. Find his average speed for the whole journey.

A) 30 km/hr
B) 60 km/hr
C) 48 km/hr
D) 24 km/hr
Option D is correct: 24 km/hr.
SI (Excise) • 2025 • Paper-II

Subtract -29 from -53 and add -16 to the result. The answer is —

A) -98
B) 8
C) -40
D) -66
Option C is correct: -40.
SI (Excise) • 2025 • Paper-II

Which protocol aims to reduce the production of ozone-depleting substances?

A) Kyoto Protocol
B) Montreal Protocol
C) Paris Agreement
D) Basel Convention
Option B is correct: Montreal Protocol.
SI (Excise) • 2025 • Paper-II

The product of (-6) x (-5) x (-11) is —

A) 330
B) -330
C) +330
D) None of these
Option B is correct: -330.
SI (Excise) • 2025 • Paper-II

A started a business by investing 25,000. At the end of 4th month from the start of the business, B join with 15,000 and at the end of 6th month from the start of the business, C joined with 20,000. If A’s share in profit at the end of the year was ₹7750. What was the total profit received?

A) ₹13,810
B) ₹12,780
C) ₹13,920
D) ₹13,950
Option D is correct: ₹13,950.
SI (Excise) • 2025 • Paper-II

Statement: The company ‘X’ has decided to give 10% increase in salary to its employees from next month. Courses of Action: I. The accounts department will have to prepare new salary statement for all employees before due date. II. Employees association should ask for more rise in the salary considering the market conditions.

A) Only I follows
B) Only II follows
C) Either I or II follows
D) Neither I nor II follows
Option A is correct: Only I follows.
SI (Excise) • 2025 • Paper-II

Vana is 7 ranks ahead of Mapuia in a class of 39. If Mapuia rank is seventeenth from the last, what is Vana’s rank from the start?

A) 14th
B) 15th
C) 16th
D) 17th
Option C is correct: 16th.
SI (Excise) • 2025 • Paper-II

The coefficient of x^2 in (2x + y)^3 is

A) 12y^2
B) 12y
C) 4
D) 12
Option B is correct: 12y.
SI (Excise) • 2025 • Paper-II

Which traditional Mizo dance is performed as a victory dance after a war?

A) Chheih Lam
B) Sarlamkai
C) Cheraw
D) Pawl Kut
Step-by-step reasoning: 1. **Sarlamkai**: This is a traditional Mizo victory dance. Historically, it was performed by warriors returning from a successful battle or expedition to celebrate their triumph and honor the bravery of the fighters. It is characterized by rhythmic movements and the use of traditional gear. 2. **Chheih Lam**: This is a social dance performed during festivals (like Chapchar Kut) and celebrations, focusing on community bonding rather than military victory. 3. **Cheraw**: Known as the 'Bamboo Dance', this is one of the most famous Mizo dances. While it is performed during various festivals and celebrations, it is a dance of grace and skill, not specifically a victory dance for war. 4. **Pawl Kut**: This is not a dance, but one of the three major traditional Mizo festivals (Kuts) celebrated after the harvest to thank God for the bounty of the land. Therefore, Sarlamkai is the only option that specifically fits the description of a victory dance after a war.
SI (Excise) • 2025 • Paper-II

What does the Gini Coefficient measure?

A) Income inequality
B) Population growth rate
C) Poverty rate
D) Unemployment rate
Option A is correct: Income inequality.
SI (Excise) • 2025 • Paper-II

Eutrophication in the lake is due to the presence of-

A) Carbon dioxide
B) Nitrogen and phosphorus
C) Oxygen
D) Sulfur dioxide
Option B is correct: Nitrogen and phosphorus.
SI (Excise) • 2025 • Paper-II

Divide ₹990 into 3 parts is such a way that half of the first part, one-third of the second part and one-fifth of the third part are equal.

A) 198, 494, 298
B) 200, 300, 490
C) 198, 297, 495
D) 196, 298, 496
Option C is correct: 198, 297, 495.
SI (Excise) • 2025 • Paper-II

Which is the largest employment guarantee program in India?

A) National Rural Livelihoods Mission (NRLM)
B) MGNREGA
C) Pradhan Mantri Kaushal Vikas Yojana (PMKVY)
D) Atal Pension Yojana (APY)
Option B is correct: MGNREGA.
SI (Excise) • 2025 • Paper-II

In a group of 35 students, 18 play volleyball, 13 play badminton and 11 play neither sport. How many play both the games?

A) 4
B) 5
C) 6
D) 7
Option D is correct: 7.
SI (Excise) • 2025 • Paper-II

If the sequence of alphabets is reversed which of the following will be the 14th Letter?

A) N
B) O
C) L
D) M
Option D is correct: M.
SI (Excise) • 2025 • Paper-II

24 apples are divided in two parts in such a way that if 7 times of first part is added to 5 times the second part, then their sum becomes 146. Find the first part.

A) 27
B) 18
C) 13
D) 23
Option C is correct: 13.
SI (Excise) • 2025 • Paper-II

Which of the following is a chemical change?

A) Melting of ice
B) Dissolving sugar in water
C) Rusting of iron
D) Boiling of water
Option C is correct: Rusting of iron.
SI (Excise) • 2025 • Paper-II

What is the sum of first 37 odd numbers?

A) 1639
B) 1369
C) 1365
D) 1425
Option B is correct: 1369.
SI (Excise) • 2025 • Paper-II

A plot is in the form of a square and its perimeter is 160 metres. The cost of laying grass at the rate of ₹30 per square metre is —

A) ₹42,000
B) ₹44,000
C) ₹46,000
D) ₹48,000
Option D is correct: ₹48,000.
SI (Excise) • 2025 • Paper-II

Look at the series, find out the number that should come next: 2, 1, 1/2, 1/4, ....?

A) 1/3
B) 1/8
C) 1/16
D) 2/3
Option B is correct: 1/8.
SI (Excise) • 2025 • Paper-II

When was the first session of the Mizoram Legislative Assembly held?

A) 1970
B) 1972
C) 1974
D) 1977
The Mizoram Legislative Assembly was established following the transition of the region from a district of Assam to a Union Territory. Under the North-Eastern Areas (Reorganisation) Act, 1971, Mizoram became a Union Territory on January 21, 1972. Consequently, the first session of the Mizoram Legislative Assembly was held in 1972. Analysis of other options: - 1970: Mizoram was still a district of Assam (Lushai Hills district) and did not have its own Legislative Assembly. - 1974: The Assembly was already functional by this time. - 1977: This period was marked by significant political unrest and the insurgency of the MNF, but the Assembly had already been established years prior.
SI (Excise) • 2025 • Paper-II

Which of the following is responsible for the transport of oxygen in the blood?

A) Plasma
B) Red blood cells
C) White blood cells
D) Platelets
Option B is correct: Red blood cells.
SI (Excise) • 2025 • Paper-II

A is C’s son. C and Q are sisters. Z is Q’s mother. P is the son of Z. How is P related to A?

A) Brother
B) Maternal uncle
C) Uncle
D) Grandfather
Option B is correct: Maternal uncle.