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MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

540 UNIT 4 Heat and Temperature

49)   

Which principle is used in the working of calorimeter? 

A.
B.
C.
D.
50)   

When a hot object is placed in a cold liquid, heat transfer continues until: 

A.
B.
C.
D.
51)   

The amount of heat required to change the state of 1 kg of a substance without changing its temperature is called:

A.
B.
C.
D.
52)   

 During melting, the temperature of a substance:

A.
B.
C.
D.
53)   

 The energy possessed by a body due to motion of molecules is called:

A.
B.
C.
D.
54)   

Which of the following does not change during a phase change (e.g., melting)?

A.
B.
C.
D.
55)   

Which material will heat up fastest when same amount of heat is supplied? 

A.
B.
C.
D.
56)   

 Which of the following devices can measure temperature electronically? 

A.
B.
C.
D.
57)   

Which instrument is used to measure heat energy?

A.
B.
C.
D.
58)   

Which of the following does NOT work based on thermal expansion? 

A.
B.
C.
D.
59)   

What is the principle of bimetallic thermometer?

A.
B.
C.
D.
60)   

Which of the following is a contact-type temperature measuring device? 

A.
B.
C.
D.
61)   

Which method of heat transfer is fastest?

A.
B.
C.
D.
62)   

 Convection cannot occur in:

A.
B.
C.
D.
63)   

The shiny silver coating inside a thermos flask reduces heat loss due to:

A.
B.
C.
D.
64)   

Which of the following is not a thermal insulator?

A.
B.
C.
D.