LGS Mixed Practice Test #365

Question 1

Sustainable Development was defined by Brundtland Commission (1987) as:‌​‍

Accepted Answer

Meeting present needs without compromising future generations — Our Common Future (1987): sustainable development balances economic, social, and environmental needs across generations.‌​‍

Answer

Economic growth

Answer

Zero growth

Answer

Environmentalism only

Question 2

Griffith's transformation experiment (1928) with Streptococcus demonstrated:‌​‍

Accepted Answer

Transforming principle existed (later identified as DNA) — Heat-killed S + live R → R became S. ‌​‍Avery-MacLeod-McCarty (1944) identified transforming principle as DNA.

Answer

Gene expression

Answer

Antibiotics

Answer

Cloning

Question 3

Which of the following is a defining characteristic of a primary social group?

Accepted Answer

C. Close, intimate, and face-to-face interaction with strong emotional ties. — Primary groups are fundamental in shaping an individual's social self and are characterized by close, intimate, face-to-face interactions, strong emotional bonds, and enduring relationships. Examples include family and close friends. Options A and B describe secondary groups, which are typically larger, more impersonal, and formed to achieve specific goals. Option D describes characteristics of formal organizations or professional groups, not primary groups.

Answer

A. Large membership with impersonal and formal relationships.

Answer

B. Relationships are goal-oriented and temporary.

Answer

D. Members are selected based on specific skills or qualifications.

Question 4

The temperature at which a liquid changes into vapour at a fixed pressure is called:‌​‍

Accepted Answer

Boiling point — Boiling point of water = 100 °C at 1 atm; decreases at lower pressure.‌​‍

Answer

Dew point

Answer

Freezing point

Answer

Melting point

Question 5

Kerala was declared India's first fully literate state on:‌​‍

Accepted Answer

18 April 1991 — Kerala achieved full-literate status on 18 April 1991.‌​‍

Answer

15 August 1947

Answer

26 January 1950

Answer

1 November 1956

Question 6

An ecological pyramid showing decreasing energy at higher trophic levels is a:‌​‍

Accepted Answer

Energy pyramid (always upright) — ~10% energy transfer between trophic levels → energy pyramid always tapers upward.‌​‍

Answer

Cylindrical

Answer

Pyramid of numbers only

Answer

Inverted pyramid

Question 7

Who is the present CAG (April 2016)?‌​‍

Accepted Answer

Shashi Kant Sharma — Shashi Kant Sharma was CAG from May 2013 to September 2017.‌​‍

Answer

Agarwal

Answer

T.E. Khanna

Answer

Vinod Rai

Question 8

O.N.V. Kurup's literary position:‌​‍

Accepted Answer

Poet — Renowned Malayalam poet.‌​‍

Answer

Novelist

Answer

Painter

Answer

Playwright

Question 9

Which of these is a halo group?‌​‍

Accepted Answer

−Cl or −Br — Halogen groups: −F, −Cl, −Br, −I (found in haloalkanes/haloarenes).‌​‍

Answer

−COOH

Answer

−OH

Answer

−CHO

Question 10

Kerala Private Buses colour:

Accepted Answer

White-red (standard) — Usually white with red stripe.

Answer

Blue

Answer

Green

Answer

Multiple

LGS Mixed Practice Test #365