HSA Mixed Practice Test #286

Question 1

SC/ST (Prevention of Atrocities) Act 1989 was enforced with effect from:‌​‍

Accepted Answer

30 January 1990 — Enforced on 30 January 1990.‌​‍

Answer

30 July 1990

Answer

30 November 1990

Answer

22 February 1991

Question 2

Spot the prefix: 'Misunderstand':‌​‍

Accepted Answer

mis- — 'Mis-' means wrongly; misunderstand = wrong understanding.‌​‍

Answer

-stand

Answer

un-

Answer

under-

Question 3

Preamble part of Constitution (SC ruling):

Accepted Answer

Both — Kesavananda overruled Berubari on Preamble.

Answer

Berubari — No

Answer

Kesavananda — Yes

Answer

LIC case

Question 4

Which functional group is primarily responsible for the antibacterial activity of penicillin antibiotics?

Accepted Answer

B. Beta-lactam ring — The beta-lactam ring is the critical structural component of penicillin and other beta-lactam antibiotics. It is essential for inhibiting bacterial transpeptidases (penicillin-binding proteins), which are crucial for bacterial cell wall synthesis. The other components contribute to stability, spectrum, or pharmacokinetics but are not the primary pharmacophore.

Answer

A. Thiazolidine ring

Answer

C. Carboxylic acid group

Answer

D. Amide side chain

Question 5

Ernakulam is:

Accepted Answer

Commercial capital — Most urbanised. Kochi is here.

Answer

Capital

Answer

Cultural capital

Answer

Judicial capital

Question 6

The 'Kerala Sahitya Akademi Award' is given annually for excellence in which field?

Accepted Answer

B. Literature and Creative Writing — The 'Kerala Sahitya Akademi Award' is conferred for outstanding contributions to literature and creative writing in Malayalam. The other fields are not the focus of this award, as per its established criteria.

Answer

A. Science and Technology

Answer

C. Sports and Physical Education

Answer

D. Industrial Development

Question 7

Subhas Chandra Bose established the Azad Hind Government in:‌​‍

Accepted Answer

Singapore — Bose established the Provisional Government of Free India (Azad Hind) in Singapore in October 1943.‌​‍

Answer

Berlin

Answer

Tokyo

Answer

Rangoon

Question 8

Which of the following best explains the genetic basis of sickle cell anemia?

Accepted Answer

B. A missense mutation in the HBB gene causing a substitution of valine for glutamic acid at the 6th position of the beta-globin chain. — Sickle cell anemia is caused by a point mutation (missense mutation) in the HBB gene, where valine replaces glutamic acid at the 6th position of the beta-globin chain. This alters the hemoglobin structure, leading to sickling of red blood cells under low oxygen conditions. Options A, C, and D describe different types of mutations that do not correspond to the actual cause of sickle cell anemia.

Answer

A. A deletion mutation in the HBB gene leading to the absence of beta-globin chains.

Answer

C. A frameshift mutation in the HBB gene resulting in a completely non-functional beta-globin protein.

Answer

D. A nonsense mutation in the HBB gene truncating the beta-globin protein prematurely.

Question 9

The Western Ghats play a crucial role in shaping Kerala's climate and monsoon patterns. Which of the following best describes their primary influence on the Southwest Monsoon rainfall distribution in the state?

Accepted Answer

A. They act as a physical barrier, forcing the moisture-laden Southwest Monsoon winds to rise, condense, and cause heavy orographic rainfall on their windward slopes. — The Western Ghats are a major physiographic feature that intercepts the Southwest Monsoon winds. As these winds strike the western slopes (windward side), they are forced to ascend, cool, condense, and precipitate heavy rainfall. This phenomenon, known as orographic rainfall, is the primary reason for the abundant rainfall in Kerala during the Southwest Monsoon. Options B, C, and D describe incorrect or secondary effects, or misrepresent the overall climate.

Answer

B. They facilitate the entry of dry continental air masses, leading to a significant reduction in rainfall across the central districts during the monsoon season.

Answer

C. They cause the Northeast Monsoon to intensify significantly, resulting in prolonged periods of heavy rainfall in the coastal plains during winter months.

Answer

D. They create a strong rain shadow effect on the entire eastern side of Kerala, making it uniformly arid throughout the year.

Question 10

Udaya Studios at:

Accepted Answer

Alappuzha — Alappuzha.

Answer

Ernakulam

Answer

TVM

Answer

Thrissur

HSA Mixed Practice Test #286