LGS Mixed Practice Test #136

Question 1

Isoseismal map shows:‌​‍

Accepted Answer

Earthquake intensity zones — Lines connecting equal intensity.‌​‍

Answer

Depth

Answer

Magnitude

Answer

Epicenter only

Question 2

British took Kochi:

Accepted Answer

1795 — 1795 during Anglo-Dutch wars.

Answer

1800

Answer

1856

Answer

1947

Question 3

Who led the first agricultural labourers' strike in Kerala demanding social and economic rights?

Accepted Answer

Ayyankali — Ayyankali led the historic 1907 strike by Dalit labourers in Travancore.

Answer

A.K. Gopalan

Answer

P. Krishna Pillai

Answer

EMS Namboodiripad

Question 4

The most widespread type of natural vegetation in India is:‌​‍

Accepted Answer

Tropical Deciduous — Tropical Deciduous Forests (Monsoon Forests) are the most widespread forest type in India, found in areas with 70-200 cm rainfall.‌​‍

Answer

Tropical Evergreen

Answer

Thorn Forest

Answer

Mangrove

Question 5

Second law (Kelvin-Planck) states:‌​‍

Accepted Answer

No engine can convert all heat into work in a cycle — Equivalent to Clausius statement. Entropy of isolated system never decreases.‌​‍

Answer

Entropy decreases

Answer

ΔU = Q - W

Answer

Energy is conserved

Question 6

Which of the following is NOT a key objective of the National Health Policy 2017 of India?

Accepted Answer

B. Ensuring availability of 1 doctor per 500 population by 2025 — The National Health Policy 2017 emphasizes universal health coverage and equity but does not mandate a specific doctor-population ratio like '1 doctor per 500 population.' This is a distracting option as it aligns with earlier drafts or state policies but is not a formal NHP 2017 objective. The other options reflect core themes of the policy.

Answer

A. Achieving the highest possible level of health and well-being for all at all ages

Answer

C. Promoting preventive and promotive healthcare in the population

Answer

D. Reducing infant and under-five mortality to single-digit by 2030

Question 7

Which of the following statements regarding the stereochemistry of drugs is most accurate?

Accepted Answer

C. Stereoisomers can exhibit different pharmacokinetic profiles and pharmacodynamic effects. — Stereoisomers, especially enantiomers, can interact differently with chiral biological targets (receptors, enzymes), leading to different pharmacokinetic profiles (absorption, distribution, metabolism, excretion) and pharmacodynamic effects (activity, potency, side effects). Enantiomers do not always have identical activity; one enantiomer is often more active, or they might have different activities. Diastereomers are not mirror images and are not superimposable.

Answer

A. Enantiomers always have identical pharmacological activity and potency.

Answer

B. Only racemic mixtures are therapeutically active, never pure enantiomers.

Answer

D. Diastereomers are mirror images of each other and are superimposable.

Question 8

Sustainable Aviation Fuel (SAF) blending, recently cleared by Cabinet, is being done with which fuel?‌​‍

Accepted Answer

Aviation Turbine Fuel (ATF) — The Cabinet approved ethanol blending with ATF under the SAF initiative.‌​‍

Answer

Diesel

Answer

CNG

Answer

LPG

Question 9

Brain weight (adult):‌​‍

Accepted Answer

1.4 kg — About 1400g.‌​‍

Answer

500g

Answer

3 kg

Answer

5 kg

Question 10

What is the primary role of citric acid in effervescent tablets?

Accepted Answer

B. To provide effervescence and improve solubility — Citric acid reacts with sodium bicarbonate in the presence of water to produce carbon dioxide, which causes effervescence and aids in the rapid disintegration and dissolution of the tablet. It does not primarily act as a disintegrant, binder, or stability enhancer.

Answer

A. To act as a disintegrant

Answer

C. To enhance drug stability

Answer

D. To act as a binder

LGS Mixed Practice Test #136