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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

540 UNIT 4 Heat and Temperature

161)   

 Fins are used to improve heat transfer by: 

A.
B.
C.
D.
162)   

 In a solar cooker, the black surface is used because it:

A.
B.
C.
D.
163)   

Condensation is the process of: 

A.
B.
C.
D.
164)   

 During evaporation, heat is: 

A.
B.
C.
D.
165)   

 The sun’s energy reaches the Earth mainly by:

A.
B.
C.
D.
166)   

Which of the following applications does NOT involve thermal expansion?

A.
B.
C.
D.
167)   

Which of the following will show maximum expansion when heated equally? 

A.
B.
C.
D.
168)   

 Glass thermometers must be designed with care because glass:

A.
B.
C.
D.
169)   

 In which state of matter is thermal expansion least?

A.
B.
C.
D.
170)   

Coefficient of linear expansion depends on:

A.
B.
C.
D.
171)   

 Which property is directly proportional to pressure in an ideal gas at constant volume?

A.
B.
C.
D.
172)   

Mercury is used in barometers because it:

A.
B.
C.
D.
173)   

Which of the following gauges can measure both positive and negative pressures?

A.
B.
C.
D.
174)   

 Which pressure is measured relative to a perfect vacuum?

A.
B.
C.
D.
175)   

 A simple U-tube manometer works on the principle of:

A.
B.
C.
D.
176)   

Which of the following processes involves the absorption of heat?

A.
B.
C.
D.