KAS Prelims Mixed Practice Test #169

Question 1

Earth's rotation on its axis takes approximately:‌​‍

Accepted Answer

23 hours 56 minutes — A sidereal day (Earth's rotation relative to stars) is ~23 hours 56 minutes.‌​‍

Answer

23 hours 30 minutes

Answer

24 hours

Answer

25 hours

Question 2

The presence of a primary amine group (-NH2) in a drug molecule is often a site for which type of metabolic reaction in the body?

Accepted Answer

D. N-acetylation — Primary amine groups are common substrates for N-acetylation, a Phase II metabolic reaction. In this process, an acetyl group from acetyl-CoA is transferred to the nitrogen atom of the amine, forming an amide. This reaction is important for the metabolism of many drugs like isoniazid and sulfonamides. Other reactions typically act on different functional groups.

Answer

A. Glucuronidation

Answer

B. Reduction

Answer

C. Hydrolysis

Question 3

While both the Mauryan and Gupta empires established vast administrative structures, a key difference lay in their approach to governance and the extent of central control. Which of the following statements best highlights this distinction?

Accepted Answer

A. The Mauryan Empire employed a highly centralized bureaucratic system with direct control over vast territories, whereas the Gupta Empire often relied on a more decentralized model with powerful feudatories. — The Mauryan Empire, heavily influenced by Kautilya's Arthashastra, was characterized by a highly centralized and bureaucratic administration that maintained direct control over its provinces. In contrast, the Gupta Empire, while powerful, adopted a more decentralized approach, often allowing conquered or subordinate rulers to retain significant autonomy as feudatories (samantas) in exchange for tribute and military support. Option B incorrectly characterizes the primary focus of both empires. Option C is inaccurate as both periods saw significant monetary economies, with Gupta period known for

Answer

B. The Gupta Empire was primarily focused on military expansion and conquest, while the Mauryan Empire prioritized cultural assimilation and religious tolerance.

Answer

C. The Mauryan administration heavily relied on a monetary economy, while the Gupta period saw a significant resurgence of barter trade and land grants as primary economic transactions.

Answer

D. Both empires maintained large standing armies and extensively used espionage networks to manage dissent, indicating similar levels of state control over local affairs.

Question 4

Enzymes are:‌​‍

Accepted Answer

Proteins — Biological catalysts (most are proteins).‌​‍

Answer

Carbohydrates

Answer

Fats

Answer

DNA

Question 5

Nari Shakti Vandan Adhiniyam (Women's Reservation Act) passed in 2023 reserves what percentage of seats in Lok Sabha / State Assemblies for women?

Accepted Answer

33% — 128th Amendment (2023) — 33% reservation for women in Lok Sabha and State Legislative Assemblies.

Answer

25%

Answer

50%

Answer

15%

Question 6

Distance between (x₁,y₁) and (x₂,y₂):‌​‍

Accepted Answer

√[(x₂-x₁)² + (y₂-y₁)²] — Pythagorean theorem. In 3D: add (z₂-z₁)².‌​‍

Answer

x₂+y₂

Answer

y₂-y₁

Answer

|x₂-x₁|

Question 7

When was the last Census conducted in India?‌​‍

Accepted Answer

2011 — The 15th Census of India was held in 2011; the 2021 Census was postponed.‌​‍

Answer

2010

Answer

2001

Answer

2021

Question 8

The teacher said, 'The earth revolves round the sun.' (Indirect speech):‌​‍

Accepted Answer

The teacher said that the earth revolves round the sun — Universal truths do NOT change tense in indirect speech. ‌​‍'Revolves' remains as 'revolves' because it states a scientific fact.

Answer

The teacher said that the earth revolved round the sun

Answer

The teacher said that the earth had revolved round the sun

Answer

The teacher said that the earth is revolving round the sun

Question 9

Bharat Ratna is:‌​‍

Accepted Answer

Highest civilian award — Highest civilian award in India.‌​‍

Answer

Sports award

Answer

Military award

Answer

Film award

Question 10

The PLI (Production Linked Incentive) scheme covers how many sectors?‌​‍

Accepted Answer

14 — PLI scheme was announced for 14 key sectors including electronics, pharma, auto, textiles, and semiconductors.‌​‍

Answer

13

Answer

10

Answer

18

KAS Prelims Mixed Practice Test #169