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Heat and temperature Categories

Multiple Choice Questions GK on Heat and temperature

Question 1 : Why does the bottom of a lake not freeze in severe winter even when the surface is all frozen?

A. The temperature of the earth at the bottom of the lake is high.

B. The water has large latent heat of fusion

C. The conductivity of ice is low

D. The water has large specific heat

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Question 2 : Which two liquids are used in the construction of minimum and maximum thermometers?

A. mercury and bromine

B. mercury and alcohol

C. water and alcohol

D. mercury and water

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Question Listed : Mercury, Alcohol, Heat, Temperature,

Question 3 : Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material?

A. Both conduction and convection

B. Radiation

C. Convection only

D. Conduction only

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Question 4 : Which one among the following waves are called waves of heat energy?

A. Microwaves

B. Ultraviolet waves

C. Infrared waves

D. Radio waves

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Question Listed : Infrared Wave, Heat, Temperature,

Question 5 : Which one among the following statements about thermal conductivity is correct?

A. Water > Wood > Steel

B. Water > Steel > Wood

C. Steel > Water > Wood

D. Steel > Wood > Water

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Question Listed : Steel, Water, Wood, Heat, Temperature,

Question 6 : Which one among the following denotes the smallest temperature?

A. 1? on the Reaumur scale

B. 1? on the Fahrenheit scale

C. 1? on the Kelvin scale

D. 1? on the Celsius scale

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Question Listed : Kelvin Scale, Heat, Temperature,

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Question 7 : Which of the following is used for measurement of high temperatures?

A. pyrometer

B. resistance thermometer

C. energy meter

D. vapour thermometer

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Question Listed : Heat, Temperature,

Question 8 : Which of the following is the fastest process of heat transfer?

A. insolation

B. radiation

C. convection

D. conduction

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Question Listed : Radiation, Heat, Temperature,

Question 9 : Which of the following is equivalent of a calorie?

A. all of the above.

B. equivalent to a little over 4 joules of mechanical work.

C. the energy needed to increase the temperature of 1 gram of water 1 degree Celsius.

D. the specific heat of water.

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Question 10 : Which among the following thermometers is preferred for measuring temperature around 1250? C?

A. Platinum resistance thermometer

B. Optical pyrometer

C. Constant volume gas thermometer

D. Mercury thermometer

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Question Listed : Optical Pyrometer, Heat, Temperature,

Question 11 : Which among the following is true of a sphere, a cube and circular plate of same material and same mass heated to same temperature?

A. Circular plate cools the slowest

B. Cube cools the fastest

C. Circular plate cools the fastest

D. Sphere cools the slowest

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Question Listed : Heat, Temperature,

Question 12 : When a solid, liquid, or a gas changes from one physical state to another, the change is called

A. sublimation

B. a phase change

C. enthalpy

D. melting

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Question Listed : Heat, Temperature,

Question 13 : What would happen to a hole in a metal sheet when the sheet is heated?

A. First increases and then decreases

B. No change is seen

C. It increases in size

D. It decreases in size

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Question Listed : Heat, Temperature,

Question 14 : What would be the thermal resistance of an ideal conductor?

A. Ten

B. Infinity

C. One

D. Zero

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Question Listed : Heat, Temperature,

Question 15 : Thermometer A and B have ice points marked at 15? and 25? and steam points at 75? and 125? respectively. When thermometer A measures the temperature of a bath as 60? the reading of B for the same bath is

A. 100?

B. 90?

C. 75?

D. 60?

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Question Listed : Heat, Temperature,

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