Assertion And Reason(Reasoning Aptitude ) Questions and answers for exam Preparation

Reasoning Aptitude

ASSERTION AND REASON MCQs

Assertion And Reason

Total Questions : 239 | Page 21 of 24 pages

Question 201. Assertion (A) : Amoebiasis is an occupational disease. Reason (R) : Amoebiasis is caused by inhalation of asbestos dust.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option E. -> Both A and R are false.

Amoebiasis is a microbial disease, caused by protozoa.

Question 202. Assertion (A) : Most of the Himalayan rivers are perennial. Reason (R) : They are fed by melting snow.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option A. -> Both A and R are true and R is the correct explanation of A.

Most Himalayan rivers originating Himalayan peaks are perennial because they are fed by the melting snow throughout the year.

Question 203. Assertion (A) : When a body is dipped in liquid fully or partially, there is a decrease in weight. Reason (R) : The decrease in weight is due to the higher density of the displaced liquid.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option C. -> A is true but R is false.

When a body is dipped in a liquid, there is a decrease in weight due to the upward thrust exerted on its by the water.

Question 204. Assertion (A) : Baking soda creates acidity in the stomach. Reason (R) : Baking soda is alkaline.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option D. -> A is false but R is true.

Baking soda, being alkaline, neutralises the acidity in the stomach and removes it.

Question 205. Assertion (A) : We prefer to wear white clothes in winter. Reason (R) : White clothes are good reflectors of heat.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option D. -> A is false but R is true.

We prefer to wear dark clothes in winter because they absorb the heat and keep the body warm. However, white clothes are good reflectors of heat and are worn in summer.

Question 206. Assertion (A) : The freezing of sea water during winter does not kill the fishes. Reason (R) : Only surface water is frozen.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option A. -> Both A and R are true and R is the correct explanation of A.

In winter, only the surface water of the sea freezes. Further, below water does not freeze because the surface ice provides an insulating coat.

Question 207. Assertion (A) : Simla is colder than Delhi. Reason (R) : Simla is at a high altitude compared to Delhi.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option A. -> Both A and R are true and R is the correct explanation of A.

Simla is colder than Delhi because it is situated at a higher altitude and temperature decreases by 1^oC for every 165 meters of ascent.

Question 208. Assertion (A) : Land breeze blows during night. Reason (R) : Land gets heated up quickly.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option B. -> Both A and R are true but R is NOT the correct explanation of A.

Land gets heated up quickly and also cool quicker than sea at night so that cool winds called the land breeze blow from land to sea.

Question 209. Assertion (A) : Leakages in household gas cylinders can be detected. Reason (R) : LPG has a strong smell.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option C. -> A is true but R is false.

Leakages in household gas cylinders can be detected because of the strong smell smell of ethyl merceptan mixed with LPG.

Question 210. Assertion (A) : We feel comfortable in hot and humid climate. Reason (R) : Sweat evaporates faster in humid climate.

Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is NOT the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.

Discuss Question

Answer: Option E. -> Both A and R are false.

We feel uncomfortable in hot and humid climate because in hot weather, body sweats more but due to high humidity, this sweat does not evaporate easily.