KAS Prelims Mixed Practice Test #649

Question 1

Queen Victoria's Proclamation promised:‌​‍

Accepted Answer

Religious non-interference — Non-interference in religion, equality.‌​‍

Answer

End of British rule

Answer

Reservation

Answer

Independence

Question 2

First Governor-General of India:

Accepted Answer

Bentinck — William Bentinck — after Charter Act 1833.

Answer

Warren Hastings

Answer

Cornwallis

Answer

Dalhousie

Question 3

Bones in infant:‌​‍

Accepted Answer

300 — About 300 — many fuse during growth.‌​‍

Answer

270

Answer

206

Answer

350

Question 4

Chronic exposure to which heavy metal can lead to 'Minamata disease,' characterized by severe neurological damage?

Accepted Answer

D. Mercury — Minamata disease is a neurological syndrome caused by severe mercury poisoning, particularly methylmercury, often ingested through contaminated seafood. Lead poisoning (plumbism) causes CNS, GI, and hematological issues. Arsenic affects multiple organ systems, and cadmium toxicity can lead to 'Itai-Itai disease' affecting bones and kidneys.

Answer

A. Lead

Answer

B. Arsenic

Answer

C. Cadmium

Question 5

The tertiary structure of a protein is critical for its biological function and often determines the specificity of drug binding. Which type of bond or interaction is least likely to contribute significantly to the stabilization of a protein's tertiary structure?

Accepted Answer

D. Peptide bonds — Peptide bonds form the primary structure (amino acid sequence) of a protein, linking amino acids together. While fundamental, they do not directly contribute to the intricate folding and stabilization that defines the tertiary structure. Hydrogen bonds, disulfide bridges, and hydrophobic interactions are all crucial non-covalent and covalent forces that stabilize the unique three-dimensional tertiary structure.

Answer

A. Hydrogen bonds

Answer

B. Disulfide bridges

Answer

C. Hydrophobic interactions

Question 6

Which article is called the 'Heart and Soul of the Constitution' by Dr. ‌​‍B.R. Ambedkar?

Accepted Answer

Article 32 — Article 32 (Right to Constitutional Remedies) was called the heart and soul of the Constitution by Ambedkar because it guarantees the right to approach the Supreme Court for enforcement of Fundamental Rights.‌​‍

Answer

Article 14

Answer

Article 19

Answer

Article 21

Question 7

Soil pH Indian average:

Accepted Answer

Slightly acidic to neutral — Most Indian soils pH 5-7.

Answer

Strongly acidic

Answer

Strongly basic

Answer

Varies greatly

Question 8

Who can pardon a death sentence in India?‌​‍

Accepted Answer

President of India — Only the President (under Article 72) can pardon a death sentence. ‌​‍The Governor (Article 161) can pardon offences against state laws but CANNOT pardon death sentences.

Answer

Governor of the State

Answer

Both President and Governor

Answer

Supreme Court only

Question 9

Chirality in organic molecules requires:‌​‍

Accepted Answer

sp³ carbon bonded to four different groups — Stereocenter. ‌​‍Pair of enantiomers rotate plane of polarized light oppositely. Important in drugs (thalidomide disaster).

Answer

sp carbon

Answer

sp² carbon

Answer

Double bond

Question 10

Kerala coastline length:‌​‍

Accepted Answer

590 km — About 590 km (some sources 580).‌​‍

Answer

400 km

Answer

500 km

Answer

700 km

KAS Prelims Mixed Practice Test #649