sparksacademychennai@gmail.com +91 8190879379 Saidapet, Chennai

MCQ - TNPSC JTO

JTO - 540 - Trade - Workshop Calculation Science

540 UNIT 4 Heat and Temperature

17)   

 In calorimetry, heat lost by the hot body is: 

A.
B.
C.
D.
Answer: C
18)   

Which of the following is a good conductor of heat?

A.
B.
C.
D.
Answer: C
19)   

 Which of the following is a thermal insulator? 

A.
B.
C.
D.
Answer: B
20)   

The unit of thermal conductivity is:

A.
B.
C.
D.
21)   

Pressure is defined as: 

A.
B.
C.
D.
22)   

The SI unit of pressure is: 

A.
B.
C.
D.
23)   

 1 atm (atmospheric pressure) is equal to: 

A.
B.
C.
D.
24)   

 Absolute pressure =

A.
B.
C.
D.
25)   

 Which instrument is commonly used to measure gauge pressure?

A.
B.
C.
D.
26)   

Which quantity determines the direction of heat flow between two objects? 

A.
B.
C.
D.
27)   

Heat always flows from:

A.
B.
C.
D.
28)   

Which of the following is a derived unit?

A.
B.
C.
D.
29)   

The amount of heat required to raise the temperature of 1 kg of a substance by 1°C is called: 

A.
B.
C.
D.
30)   

Which of the following will expand the most when heated?

A.
B.
C.
D.
31)   

Melting point of a substance is the temperature at which it changes from: 

A.
B.
C.
D.
32)   

 Which of the following metals has the lowest melting point? 

A.
B.
C.
D.