RAC Test No. 1- Basic Refrigeration Cycle

A reversible Carnot cycle used for refrigeration

comprises

• Two isentropic and two adiabatic processes

• Two isentropic and two constant volume processes

• Two isentropic and two constant pressure process

• Two isentropic and two isothermal processes

In a typical system, within which component would the evaporation of refrigerant take place?

• Condenser

• Receiver dryer

• Evaporator

• Compressor

Where does the low pressure liquid become a gas (vapour)?

• Evaporator

• Condenser

• TX valve

• Compressor

In what state is the refrigerant when it exits the condenser?

• High pressure gas

• Low pressure gas

• High pressure liquid

• Low pressure liquid

The two major functions of the compressor are to circulate refrigerant and to compress ____________. 

• Low-pressure refrigerant vapor into hot, high temperature vapor
• High-pressure refrigerant vapor into high-temperature, low temperature liquid
• Low-pressure refrigerant liquid into hot, high temperature vapor
• Low-pressure refrigerant liquid into hot, high temperature liquid

As refrigerant moves through the condenser it goes from _____ to ________

• a Vapor to a Liquid

• a Liquid to a Vapor

• Low pressure Vapor to a low pressure vapor

• High pressure liquid to a low pressure liquid

_______ decrease the pressure inside the system.

• compressor

• condenser

• capillary tube

• evaporator

The heat removing capacity of one tone of refrigeration is equal to?

• 210 Watt

• 210 kJ/hour

• 3.5 kJ/hour

• 3.5 W

In which type of air refrigeration system a secondary compressor is used?

• Reduced ambient type air refrigeration System

• Regenerative type air refrigeration System

• Simple air refrigeration System

• Boot strap air refrigeration System

WHICH TYPE OF AIR COOLING SYSTEM IS USED FOR TRANSPORTATION?

• Boot strap air cooling system

• Reduced ambient air cooling system,

• Reduced aircraft air cooling system,

• Regenerative air cooling system.