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(IGP) IAS Pre Paper - 2: GS - Logical Reasoning & Analytical Ability - Assertion & Reason (MCQ -6)
Logical Reasoning & Analytical Ability
Assertion & Reason (MCQ -6)
Directions (Q. Nos. 1 to 28) Choose the correct alternative from the following options as given below for the Assertion (A) and Reason (R) given in each of the questions.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
1. Assertion (A): Alcohol rather than
mercury is used in a thermometer tomeasure a temperature of 60°C.
Reason (R): Alcohol has a lower freezing point than mercury.
2. Assertion (A): Tides
indicate the regular and periodic rise and fall in sea level.
Reason (R): Tides are caused by the gravitational pull of the moon
and sea level.
3. Assertion (A): Graphite is
slippery and used as a lubricant.
Reason (R): Graphite has free electrons.
4. Assertion (A): When common
salt is kept open, it absorbsmoisture from the air.
Reason (R): Common salt contains magnesium chloride.
5. Assertion (A): The steam
engine was invented by James Watt.
Reason (R): There was a problem of taking out water from
floodedmines.
6. Assertion (A): We prefer
to wear white clothes in winter.
Reason (R): White clothes are good reflectors of heat.
7. Assertion (A): Earthworms
are not good for agriculture.
Reason (R):Earthworms break down the soil into fine particles
andmake is soft.
8. Assertion (A): Mercury is
the farthest planet from the sun.
Reason (R): Mercury is the smallest planet in the entire
solar-system.
9. Assertion (A): Red-green
colour blindness occurs with more frequency in males than in
females.
Reason (R): Females have two chromosomes and males have one.
10. Assertion (A): Indus
Valley people knewthat art of navigation.
Reason (R): Indus Valley seals indicate prevalence of overseas
trade.
11. Assertion (A): A person
with blood group-O is supposed to be an universal Donor.
Reason (R): Group-O does not contain any antigens.
12. Assertion (A): Most of
the Himalayan rivers are perennial.
Reason (R): They are fed by melting snow.
13. Assertion (A): An iron
ball floats on mercury but gets immersed in water.
Reason (R): The specific gravity of iron is more than that of
mercury.
14. Assertion (A): Noise
pollution is an unwanted accumulation of noise in the atmosphere.
Reason (R): It interferes with communication.
15. Assertion (A): Akbar
found Din-e-Illahi.
Reason (R): He was motivated by self glorification.
16. Assertion (A): Safety
fuses are made up of materials having a low melting point.
Reason (R): Safety fuses should be resistant to electric current.
17. Assertion (A): Milk
production in India is high as compared to other countries of the
world.
Reason (R): The animal rearers in India are poor.
18. Assertion (A): Sprouting
should not be done before consuming the grains.
Reason (R): Sprouting increase many vital vitamins.
19. Assertion (A): Goitre is
a common disease in mountaineous regions.
Reason (R): The diet of the people in mountains lacks content.
20. Assertion (A): Roughage
prevents constipation.
Reason (R): Roughage adds bulk to the food.
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