Heat and Thermodynamics MCQ question and answer with solution

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Each section contains 100 MCQs on Heat and Thermodynamics .

The direction of heat flow between two body depends on which of the following?

A) Their specific heat B) Their latent heat C) Their temperatures D) Their area of contact

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The expected quality of a refrigerant is-

A) Low boiling point B) High critical temperature C) High latent heat of evaporation D) all the above

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What is the freezing point of water-

A) 40°F B) 42°F C) 34°F D) 32°F

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What is the value of the temperature which is considered normal in human body-

A) 95°F B) 97°F C) 98.6°F D) 96.8°F

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

When water is heated from 0°C to 10°C. It's volume

A) Increases B) Decreases C) Does not change D) First decreases and then increases

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The safest temperature for keeping food fresh in a refrigerator is

A) 4°C B) 8°C C) 0°C D) 10°C

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which one of the following changes occurs when salt is added into the water?

A) Boiling point is increased and freezing point is decreased B) Boiling point is decreased and freezing point is increased C) Both boiling point and freezing point are decreased D) Both boiling point and freezing point are increased

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which one of the following statements is not correct?

A) The Kelvin scale of temperature is called the absolutes scale B) Visible light radiation has wavelength range of 400 - 700 nm C) The capacity to do work is called power D) The wavelength of Gamma rays is less than that of X-rays

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Xeric condition refers to

A) low temperature B) low humidity C) high evaporation D) extreme temperature

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Cryogenics is a science dealing with

A) high temperatures B) low temperatures C) friction and wear D) growth of crystals

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Heat and Thermodynamics MCQ question and answer with solution | Physics Gk MCQs