6. State of wet vapor cannot be specified only by –
A. Pressure and temperature
B. Pressure and dryness fraction
C. Temperature and dryness fraction
D. Pressure and Volume
Read Also- Thermodynamics: Objective Questions Answers
7. Which of the following is not an essential component of any refrigeration system, where the refrigeration effect is produced by the vaporization of refrigerant?
A. Compressor
B. Evaporator
C. Condensor
D. Expansion device
8. In conventional refrigerants what is the element responsible for ozone depletion?
A. Chlorine
B. Fluorine
C. Carbon
D. Carbon
9. A reversed Carnot cycle working as a heat pump has a COP of 7. What is the ratio of minimum to maximum absolute temperatures?
A. 7/8
B. 1/6
C. 1/7
D. 6/7
10. In a vapor absorption refrigeration, heat is rejected in –
A. Condenser only
B. Absorber only
C. Generator only
D. Condenser and Absorber