LGS Mixed Practice Test #547

Question 1

Laterite soil is the predominant soil type found in many parts of Kerala. This soil type's formation is primarily attributed to which specific set of climatic conditions and associated geological processes?

Accepted Answer

B. High rainfall and high temperatures causing intense leaching of silica and accumulation of iron and aluminum oxides. — Laterite soils form under hot and humid tropical climates with heavy rainfall, which causes intense leaching of soluble bases and silica from the parent rock. This process leaves behind residual oxides of iron and aluminum, giving the soil its characteristic reddish color and often a hard crust. Options A, C, and D describe conditions for the formation of different soil types not typical for laterite in Kerala's climate.

Answer

A. Low temperatures and arid conditions leading to chemical weathering and accumulation of carbonates.

Answer

C. Moderate rainfall and temperate climate promoting the deposition of organic matter and formation of black soils.

Answer

D. Seasonal floods and alluvial deposition in river valleys, leading to highly fertile loamy soils.

Question 2

What does distributive justice primarily concern?‌​‍

Accepted Answer

Fair distribution of benefits, resources, opportunities — Distributive justice asks: how should resources (income, jobs, healthcare) be allocated? ‌​‍Competing theories: utilitarian, Rawlsian, libertarian.

Answer

Religion

Answer

Property rights

Answer

Punishment

Question 3

Bering Strait between:

Accepted Answer

Alaska-Russia — Alaska-Chukotka.

Answer

USA-Canada

Answer

Japan-Korea

Answer

China-Russia

Question 4

Which of the following is NOT a responsibility of the State Commission for Protection of Child Rights (SCPCR) under the RTE Act in Kerala?

Accepted Answer

D. Directly enrolling children in government schools if private schools deny admission — While SCPCR monitors RTE implementation, investigates complaints, and may conduct inspections, it does NOT have the authority to directly enroll children in schools. Enrollment is handled by the local authorities or school managements. Distractor C is plausible as inspections are a key function, while D is incorrect as direct enrollment is outside SCPCR's mandate.

Answer

A. Monitoring the implementation of RTE provisions in schools

Answer

B. Investigating complaints related to denial of admission under RTE

Answer

C. Conducting surprise inspections of schools to verify RTE compliance

Question 5

5 Ws and 1 H of news:

Accepted Answer

What, When, Where, Why, Who, How — Core questions of news writing. Inverted pyramid: most important first. Lead paragraph, body, conclusion.

Answer

Only what

Answer

Random

Answer

3 Ws

Question 6

Ohm is the SI unit of:‌​‍

Accepted Answer

Resistance — Ohm (Ω) is SI unit of electrical resistance.‌​‍

Answer

Voltage

Answer

Current

Answer

Power

Question 7

The speed of light is:‌​‍

Accepted Answer

3 × 10⁸ m/s — Speed of light in vacuum ≈ 3 × 10⁸ m/s.‌​‍

Answer

3 × 10⁶ m/s

Answer

3 × 10¹⁰ m/s

Answer

3 × 10⁴ m/s

Question 8

Which gas is responsible for the greenhouse effect most?

Accepted Answer

Water vapour and CO₂ — Water vapour is the largest contributor; CO₂ is the main anthropogenic GHG.

Answer

N₂

Answer

O₂

Answer

Ar

Question 9

What is the critical structural feature responsible for the antibacterial activity of penicillins and cephalosporins?

Accepted Answer

B. Beta-lactam ring — The strained beta-lactam ring is essential for the antibacterial activity of penicillins and cephalosporins. It is the site of action for inhibiting bacterial cell wall synthesis by binding to penicillin-binding proteins. Its hydrolysis by bacterial beta-lactamases leads to drug inactivation.

Answer

A. Thiazolidine ring

Answer

C. Carboxyl group

Answer

D. Amide side chain

Question 10

Number of bones in an adult human body is:

Accepted Answer

206 — Adult human skeleton has 206 bones; infants have ~270 that fuse over time.

Answer

186

Answer

256

Answer

300

LGS Mixed Practice Test #547