Thermodynamics Multiple Choice Questions (MCQ)
1- Which of the following laws is applicable for the behavior of a perfect gas?
(A) Gay-Lussac’s Law
(B) Kirchhoff’s Laws
(C) Coulomb’s Law
(D) Hooke’s Law
2- A closed system is one in which
(A) Mass does not cross boundaries of the system, though energy may do so
(B) Energy does not cross boundaries of the system, though mass may do so
(C) Neither mass nor energy crosses the boundaries of the system
(D) Both energy and mass cross the boundaries of the system
3- The SI unit of pressure is
(A) Kg per square centimeter
(B) Millimeter of water column
(C) Pascal
(D) Dynes per square centimeter
4- Specific heat ratio of air at 300K is equal to
(A) 1.005
(B) 1.4
(C) 1
(D) 0.718
5- In an isothermal process, the internal energy
(A) Increases
(B) Decreases
(C) Remains constant
(D) None of the above
6- Which of the following quantities is not the property of the system?
(A) Pressure
(B) Temperature
(C) Specific volume
(D) Heat
7- According to first law of thermodynamics
(A) Mass and energy are mutually convertible
(B) Mass and heat are mutually convertible
(C) Heat and work are mutually convertible
(D) Mass and light are mutually convertible
8- Thermal power plant works on
(A) Carnot cycle
(B) Joule cycle
(C) Rankine cycle
(D) Otto cycle
9- In a Carnot cycle, heat is transferred at
(A) Constant pressure
(B) Constant volume
(C) Constant temperature
(D) Constant enthalpy
10- Brayton cycle consists of following four processes
(A) Two isothermals and two isentropics
(B) Two isentropics and two constant volumes
(C) Two isentropics, one constant volume and one constant pressure
(D) Two isentropics and two constant pressures
ANSWERS:
1-(A), 2-(A), 3-(C), 4-(B), 5-(C), 6-(D), 7-(C), 8-(C), 9-(C), 10-(D)