SECTION-2

##### Q11. The ideal efficiency of a simple gas turbine depends upon

(a) temperature ratio
(b) volume ratio
(c) pressure ratio
(d) none of the above.

Ans:(c) pressure ratio

##### Q12. The amount of heat generated per kg of fuel is known as

(a) heat energy
(b) calorific value
(c) specific heat
(d) internal energy.

Ans:(b) calorific value

##### Q13. In an isothermal process, internal energy

(a) decreases
(b) increases
(c) has no change
(d) none of the above.

Ans:(c) has no change

(a) 30 kcal
(b) 45 kcal
(c) 60 kcal
(d) 75 kcal.

Ans:(c) 60 kcal

(a) 30 kcal
(b) 45 kcal
(c) 60 kcal
(d) 75 kcal.

Ans:(b) 45 kcal

##### Q16. The velocity, with which greatest percentage of molecules is found to move at any temperature, is known as

(a) root mean square velocity
(b) mean velocity
(c) most probable velocity
(d) shear velocity.

Ans:(c) most probable velocity

##### Q17. The internal energy of a gas depends upon

(a) pressure
(b) volume
(c) velocity
(d) temperature.

Ans:(d) temperature.

##### Q18. The R.M.S. velocity of N molecules in a gas, if the temperature is constant

(a) goes on increasing
(b) goes on decreasing
(c) remains constant
(d) none of the above

Ans:(c) remains constant

##### Q19. The enthalpy of vaporization, at critical point is

(a) maximum
(b) minimum
(c) zero
(d) none of the above.

Ans:(c) zero

##### Q20. The change in enthalpy, for a reversible adiabatic process, is

(a) maximum
(b) minimum
(c) unity
(d) zero.

Ans:(d) zero.

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##### Read More Sections of Thermodynamics Objective Questions

Each section contains maximum 80 Questions. To practice more questions visit other sections.

Thermodynamics Objective Questions – Section-1

Thermodynamics Objective Questions – Section-2

Thermodynamics Objective Questions – Section-3

Thermodynamics Objective Questions – Section-4