LDC Mixed Practice Test #519

Question 1

On a remote island, a population of deer faces a severe and prolonged winter, leading to a scarcity of their usual plant-based food sources. During this period, deer with a genetically determined thicker coat of fur are observed to have a significantly higher survival rate due to better insulation against the cold. Over several generations, the average thickness of fur in the deer population increases noticeably. This evolutionary change is best described as an example of:

Accepted Answer

D. Directional selection — This scenario describes directional selection, where an environmental change (severe winter favoring thicker fur) causes one extreme phenotype (thicker fur) to have a survival advantage over others. This leads to a shift in the population's average trait value over generations. Genetic drift involves random changes, gene flow introduces new alleles from other populations, and stabilizing selection favors intermediate traits, none of which accurately describe the observed selection pressure and resulting change.

Answer

A. Genetic drift

Answer

B. Gene flow

Answer

C. Stabilizing selection

Question 2

The first President elected unopposed was:‌​‍

Accepted Answer

Neelam Sanjiva Reddy — N. ‌​‍S. Reddy was elected unopposed in 1977 — the only President to be elected without contest.

Answer

Rajendra Prasad

Answer

V. V. Giri

Answer

Zakir Hussain

Question 3

Bills requiring state ratification:‌​‍

Accepted Answer

Federal structure, Art 368, judiciary — Schedule 1, 2, 4, 5, 6, Art 368, Union List etc.‌​‍

Answer

FR changes

Answer

No such requirement

Answer

Only UCC

Question 4

Present perfect structure:

Accepted Answer

have/has + V3 — have/has + past participle.

Answer

had + V3

Answer

is + V3

Answer

will have + V3

Question 5

Synonym of INUNDATE:

Accepted Answer

Flood — Overwhelm with water or things.

Answer

Drain

Answer

Empty

Answer

Reduce

Question 6

Kerala declared internet a basic right:

Accepted Answer

2019 — First state (2019).

Answer

2020

Answer

2018

Answer

2021

Question 7

During a science class, a teacher circulates among student groups, providing immediate verbal feedback on their experimental designs. Based on common errors observed, she decides to re-explain a critical concept the following day. This approach primarily exemplifies which type of assessment?

Accepted Answer

C. Formative Assessment — Formative assessment focuses on monitoring student learning during instruction to provide ongoing feedback, allowing teachers to adjust teaching and students to improve learning. The immediate feedback and adjustment of future lessons are hallmarks of formative assessment, whereas summative assessment measures learning at the end, diagnostic identifies prior knowledge gaps, and placement determines appropriate course levels.

Answer

A. Summative Assessment

Answer

B. Diagnostic Assessment

Answer

D. Placement Assessment

Question 8

The first satellite launched by Indian rocket (SLV-3) was:‌​‍

Accepted Answer

Rohini — Rohini was the first satellite launched by India's own SLV-3 rocket on 18 July 1980.‌​‍

Answer

Aryabhata

Answer

INSAT-1A

Answer

Bhaskara

Question 9

India's national bird is:‌​‍

Accepted Answer

Peacock — Indian peafowl (Pavo cristatus) is the national bird since 1963.‌​‍

Answer

Parrot

Answer

Eagle

Answer

Sparrow

Question 10

Kerala Piravi:

Accepted Answer

1 Nov — 1 November — Kerala Day.

Answer

15 Aug

Answer

26 Jan

Answer

2 Oct

LDC Mixed Practice Test #519