KAS Prelims Mixed Practice Test #321

Question 1

Who wrote Jnanappana?‌​‍

Accepted Answer

Poonthanam — Poonthanam — devotional poem on futility of worldly knowledge.‌​‍

Answer

Melpathur

Answer

Ezhuthachan

Answer

Cherusseri

Question 2

The element with symbol 'Na' is:‌​‍

Accepted Answer

Sodium — Na from Latin 'natrium'.‌​‍

Answer

Nickel

Answer

Nitrogen

Answer

Neon

Question 3

Milton's epic:

Accepted Answer

Paradise Lost — Blank verse epic (1667). 12 books. Falls of Satan and Adam-Eve. 'Better to reign in hell than serve in heaven.'

Answer

Iliad

Answer

Odyssey

Answer

Canterbury Tales

Question 4

To which country was the first Akash SAM exported?‌​‍

Accepted Answer

To Armenia — First export of Akash to Armenia.‌​‍

Answer

US

Answer

None

Answer

Cancelled

Question 5

According to the 2011 Census, which state recorded a negative population growth rate?‌​‍

Accepted Answer

Nagaland — Nagaland showed −0.58% decadal growth in 2011.‌​‍

Answer

Mizoram

Answer

Sikkim

Answer

Kerala

Question 6

The Vellore Mutiny of 1806, considered the first military revolt against the British, was triggered by:‌​‍

Accepted Answer

Changes in the dress code of Indian soldiers — Dress-code changes imposed by the East India Company sparked the Vellore Mutiny in Tamil Nadu in 1806.‌​‍

Answer

The greased cartridge controversy

Answer

Doctrine of Lapse

Answer

Pay cuts

Question 7

Chishti order founder in India:

Accepted Answer

Khwaja Moinuddin Chishti — Moinuddin Chishti at Ajmer.

Answer

Nizamuddin

Answer

Bahauddin

Answer

Hamiduddin

Question 8

A worker pushes a heavy crate across a horizontal floor at a constant speed. The worker applies a constant force 'F' over a distance 'd'. Which of the following statements accurately describes the energy transformations and work done in this scenario?

Accepted Answer

B. The work done by the worker is Fd, and the work done by friction converts mechanical energy into heat. — Since the crate moves at a constant speed, its kinetic energy remains unchanged, meaning the net work done on it is zero according to the Work-Energy Theorem. The worker does positive work (Fd), and this work is entirely balanced by the negative work done by friction (-Fd), which converts the mechanical energy into thermal energy (heat). Therefore, option B is correct. Option A is incorrect because net work is zero and kinetic energy is constant. Option C is incorrect because mechanical energy is not conserved due to the presence of friction. Option D is incorrect because the work done is diss

Answer

A. The net work done on the crate is Fd, and its kinetic energy increases.

Answer

C. The total mechanical energy of the crate remains constant, as it moves at a constant speed.

Answer

D. The work done by the worker is entirely converted into the kinetic energy of the crate.

Question 9

Antonym of DANGER:‌​‍

Accepted Answer

Safety — Danger ↔ safety.‌​‍

Answer

Harm

Answer

Risk

Answer

Threat

Question 10

The dimensional formula of Planck's constant h is:‌​‍

Accepted Answer

[M L^2 T^-1] — E = hν → h = E/ν = [ML²T⁻²]/[T⁻¹] = [ML²T⁻¹]. ‌​‍Same dimensions as angular momentum.

Answer

[M L^-2 T]

Answer

[M L T^-1]

Answer

[M L^2 T^-2]

KAS Prelims Mixed Practice Test #321