Basic Mechanical Engineering (3110006) MCQs

MCQs of Properties of Gases

Showing 21 to 25 out of 25 Questions
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21.
In the polytropic process equation, pVn=C, if n = 0, the process is termed as
(a) isochoric
(b) isobaric
(c) isothermal
(d) adiabatic
Answer:

Option (b)

22.
The ratio of specific heat at constant pressure Cp and specific heat at constant volume Cv is
(a) equal to one
(b) less than one
(c) greater than one
(d) none of these
Answer:

Option (c)

23.
In the polytropic process pVn=C, if n=∞, the process is called
(a) isochoric
(b) isobaric
(c) isothermal
(d) adiabatic
Answer:

Option (a)

24.
The value of n = 1 in the polytropic process indicates it to be
(a) reversible process
(b) isothermal process
(c) adiabatic process
(d) irreversible process
Answer:

Option (b)

25.
Work done in a free expansion process is
(a) +ve
(b) -ve
(c) zero
(d) maximum
Answer:

Option (c)

Showing 21 to 25 out of 25 Questions
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