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General Science MCQ practice free online · page 37

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361UPSC2000General ScienceEnglish
Assertion (A): Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. Reason (R): Ammonia can be liquefied at ambient temperatures at low pressures.
Show answerAnswer & explanation
Correct option: C — (A) is true, but (R) is false
362UPPSC2010General ScienceEnglish
Consider the following statements. Assertion (A): If ice collects in the freezer, the cooling in the refrigerator is affected adversely. Reason (R): Ice is a poor conductor. Select the correct answer using the codes given below.
Show answerAnswer & explanation
Correct option: A — Both (A) and (R) are true and (R) is the correct explanation of (A)
363UPPSC2001General ScienceEnglish
Assertion (A): Black hole is such a celestial existence which cannot be seen by telescope. Reason (R): The gravitational field of black hole is much strong that even light does not escape from it.
Show answerAnswer & explanation
Correct option: A — Both (A) and (R) are true and (R) is the correct explanation of (A)
364Arunachal PSC2015General ScienceEnglish
Consider the following statements. Assertion (A): Space based solar power (SBSP), it is suggested be made a national goal. Reason (R): Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability. Select the correct answer using the codes given below.
Show answerAnswer & explanation
Correct option: A — Both (A) and (R) are true and (R) is the correct explanation of (A)
365OPSC2019General ScienceEnglish
Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter the copper piece appears hotter than the glass piece. Reason (R): The desity of copper is more than that of glass.
Show answerAnswer & explanation
Correct option: B — Both (A) and (R) are true, but (R) is not the correct explanation of (A)
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366Mizoram PSC2014General ScienceEnglish
An assertion and its reason is given below. Assertion (A): Salt is used for cooking the food at places on higher from sea level. Reason (R): Temperature is low in higher places. Which one among these is right answer?
Show answerAnswer & explanation
Correct option: B — Both (A) and (R) are true, but (R) is not the correct explanation of (A)
367Nagaland PSC2013General ScienceEnglish
Assertion and Reason are given below. Assertion (A): We prefer the white dress in winters. Reason (R): White dresses are good reflectors of heat. Which one among these is the right answer.
Show answerAnswer & explanation
Correct option: D — (A) is false, but (R) is true
368Goa PSC2016General ScienceEnglish
Consider the following statements. Assertion (A): Light coloured clothes are preferred in summer. Reason (R): Light colours are poor absorbers of heat. Select correct answer from the code given below.
Show answerAnswer & explanation
Correct option: A — Both (A) and (R) are true and (R) is the correct explanation of (A)
369UPSC2001General ScienceEnglish
Assertion (A): The boiling point of water decreases as the altitude increases. Reason (R): The atmospheric pressure increases with altitude.
Show answerAnswer & explanation
Correct option: C — (A) is true, but (R) is false
370UPSC2002General ScienceEnglish
Assertion (A): With the increase of temperature, the viscosity of glycerin increases. Reason (R): Rise of temperature increases kinetic energy of molecules.
Show answerAnswer & explanation
Correct option: D — (A) is false, but (R) is true

General Science practice — common questions

Page 37 of this set has 10 questions on it.

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Where do these General Science MCQs come from?

They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.

Are the questions available in Hindi?

Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.

Do the questions show answers and explanations?

Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".

General Science MCQ practice free online · page 37

Assertion (A): Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons. Reason (R): Ammonia can be liquefied at ambient temperatures at low pressures.

Consider the following statements. Assertion (A): If ice collects in the freezer, the cooling in the refrigerator is affected adversely. Reason (R): Ice is a poor conductor. Select the correct answer using the codes given below.

Assertion (A): Black hole is such a celestial existence which cannot be seen by telescope. Reason (R): The gravitational field of black hole is much strong that even light does not escape from it.

Consider the following statements. Assertion (A): Space based solar power (SBSP), it is suggested be made a national goal. Reason (R): Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability. Select the correct answer using the codes given below.

Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter the copper piece appears hotter than the glass piece. Reason (R): The desity of copper is more than that of glass.

An assertion and its reason is given below. Assertion (A): Salt is used for cooking the food at places on higher from sea level. Reason (R): Temperature is low in higher places. Which one among these is right answer?

Assertion and Reason are given below. Assertion (A): We prefer the white dress in winters. Reason (R): White dresses are good reflectors of heat. Which one among these is the right answer.

Consider the following statements. Assertion (A): Light coloured clothes are preferred in summer. Reason (R): Light colours are poor absorbers of heat. Select correct answer from the code given below.

Assertion (A): The boiling point of water decreases as the altitude increases. Reason (R): The atmospheric pressure increases with altitude.

Assertion (A): With the increase of temperature, the viscosity of glycerin increases. Reason (R): Rise of temperature increases kinetic energy of molecules.

General Science practice — common questions