KAS Prelims Mixed Practice Test #494

Question 1

Difference: soap vs detergent in hard water:‌​‍

Accepted Answer

Soap precipitates (scum); detergents work in hard water — Ca²⁺, Mg²⁺ in hard water precipitate soap. Detergent calcium salts are soluble.‌​‍

Answer

Soap better

Answer

Neither

Answer

Both work

Question 2

The Greek 'Golden Age' (5th C BCE) is associated with:‌​‍

Accepted Answer

Athens under Pericles — Pericles (c. ‌​‍495-429 BCE) — Athenian leader during 'Age of Pericles.' Parthenon, Socrates, Sophocles, democracy.

Answer

Rome

Answer

Alexandria

Answer

Sparta

Question 3

Anti-incumbency broken in Kerala:

Accepted Answer

2021 LDF — 2021 — LDF broke alternating.

Answer

1977

Answer

1957

Answer

Never

Question 4

India Coach before Gambhir:‌​‍

Accepted Answer

Rahul Dravid — Rahul Dravid.‌​‍

Answer

Ravi Shastri

Answer

Anil Kumble

Answer

Greg Chappell

Question 5

The ship on which Darwin made his famous voyage was:

Accepted Answer

HMS Beagle — Darwin sailed on HMS Beagle (1831–1836), visiting the Galápagos, S. America etc.

Answer

HMS Victory

Answer

HMS Endeavour

Answer

HMS Discovery

Question 6

The IUPAC name of CH₃COOH is:

Accepted Answer

Ethanoic acid — CH₃COOH = ethanoic acid (acetic acid in common name). Vinegar is ~5–10% acetic acid.

Answer

Methanoic acid

Answer

Propanoic acid

Answer

Formic acid

Question 7

Coase Theorem (1960) states:‌​‍

Accepted Answer

Under clear property rights and low transaction costs, parties can bargain to efficient outcome — Ronald Coase (Nobel 1991): if property rights are well-defined + transaction costs zero, private bargaining resolves externalities without government.‌​‍

Answer

Externalities need government

Answer

Pollution is always efficient

Answer

No solution exists

Question 8

Which of the following is a primary function of insoluble dietary fiber in the human body?

Accepted Answer

B. Adding bulk to stool and promoting bowel regularity. — Insoluble fiber's main role is to add bulk to the stool, which helps to stimulate bowel movements and prevent constipation. While soluble fiber can help lower cholesterol, insoluble fiber primarily contributes to gut motility and regularity. Fiber itself does not provide significant vitamins, minerals, or assist in fat-soluble vitamin absorption.

Answer

A. Lowering blood cholesterol levels.

Answer

C. Providing a significant source of vitamins and minerals.

Answer

D. Assisting in the absorption of fat-soluble vitamins.

Question 9

Antonym of UGLY:‌​‍

Accepted Answer

Beautiful — Ugly ↔ beautiful.‌​‍

Answer

Unattractive

Answer

Plain

Answer

Hideous

Question 10

First elections under 1935 Act:

Accepted Answer

1937 — 1937 provincial elections.

Answer

1946

Answer

1945

Answer

1930

KAS Prelims Mixed Practice Test #494