GK Questions on Heat & Temperature

General Knowledge Questions

Q.29 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) 60°

(B) 75°

(C) 90°

(D) 100°

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Q.30 Which one among the following waves are called waves of heat energy?

(A) Radio waves

(B) Infrared waves

(C) Ultraviolet waves

(D) Microwaves

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Q.31 In a pressure cooker cooking is faster because of the increase in vapor pressure

(A) increases the specific heat

(B) decreases the specific heat

(C) decreases the boiling point

(D) increases the boiling point

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Q.32 If a heater coil is cut into two equal parts and only one part is used in the heater, the heat generated will be:

(A) doubled

(B) four times

(C) one-fourth

(D) halved

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Q.33 The best and the poorest conductors of heat are respectively

(A) silver (Ag) and lead (Pb)

(B) copper (Cu) and aluminum (Al)

(C) silver (Ag) and gold (Au)

(D) copper (Cu) and gold (Au)

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Q.34 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) Conduction only

(B) Convection only

(C) Radiation

(D) Both conduction and convection

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Q.35 Which one among the following denotes the smallest temperature?

(A) 1° on the Celsius scale

(B) 1° on the Kelvin scale

(C) 1° on the Fahrenheit scale

(D) 1° on the Reaumur scale

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Q.36 Which among the following thermometers is preferred for measuring temperature around 1250° C?

(A) Mercury thermometer

(B) Constant volume gas thermometer

(C) Optical pyrometer

(D) Platinum resistance thermometer

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