11. For small installations of the refrigeration system (up to 35 kW), which type of condenser is used?
A. Shell and tube type
B. Shell and coil type
C. Air-cooled type
D. Double tube type
Read Also- Manufacturing Science: Objective Questions
12. In a refrigerating machine, heat rejected is (———-) heat absorbed –
A. less than
B. equal to
C. greater than
D. None of these
13. While designing the refrigeration system of an aircraft, the prime consideration is that the –
A. mass of the refrigeration equipment is low
B. power per TR is low
C. system has high C.O.P.
D. mass of refrigerant circulated in the system is low
14. In Electrolux refrigerator –
A. ammonia is absorbed in water
B. ammonia evaporates in hydrogen
C. ammonia is absorbed in hydrogen
D. hydrogen evaporates in ammonia
15. Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere?
A. Fluorine
B. Ammonia
C. Carbon dioxide
D. Sulphur dioxide