Entry Test MCQ :: Heat and Thermodynamics

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31.

Adiabatic process is also called

A.	Heat exchange process	B.	Heating process
C.	Isentropic process	D.	All of the above

32.

Which quantity is a state function

A.	internal energy	B.	heat supply
C.	pressure	D.	volume

33.

The value of ? for diatomic gas is

A.	1.67	B.	1.4
C.	? = 1.3	D.	none

34.

The work done in the isochoric process is

A.	constant	B.	variable
C.	zero	D.	depends on situation

35.

In which process all the heat supplied is converted into work done.

A.	isothermal	B.	isochoric
C.	isobaric	D.	isentropic

36.

For the successful operation of Heat engine which condition should be met.

A.	cyclic process	B.	operated at certain temperature difference
C.	both (a) and (b)	D.	none of these

37.

The performance of a refrigerator is described by

A.	efficiency	B.	coefficient of performance
C.	both (a) and (b)	D.	not described

38.

The purpose of flywheel in the engines is

A.	to smooth out the energy variation	B.	to add more weight to engine to work it stable
C.	to start engine	D.	both (a) and (b)

39.

The unit of entropy is

A.	J.K	B.	J/K
C.	N.m/sec	D.	Kgm2/sec2.K

40.

Petrol engine is a

A.	C.I engine	B.	SI engine
C.	IC engine	D.	all the above