Refrigeration and Air Conditioning - Multiple Choice Questions

Refrigeration and Air Conditioning - Multiple Choice Questions Points : mcqs, refrigeration and air conditioning multiple choice questions answers with answer key, refrigeration and air conditioning objective type question answers, absorption & refrigeration multiple choice questions answers, steam jet refrigeration system multiple choice questions answers, air washer multiple choice questions answers, screw compressor multiple choice questions answers, commercial air conditioning multiple choice questions answers, humidifiers and dehumidifier multiple choice questions answers, ice plants multiple choice questions answers 1. Steam jet refrigeration cycle employs a compressor device called.
a) vapor compressor
b) liquid pump
c) steam ejector

2. The load control in steam jet refrigeration cycle is obtained by
a) using multiple parallel ejector
b) increasing the mass flow rate of motive steam through nozzles

3. The cop of steam refrigeration cycle is of the order of.
a) 3 to4
b) 0.5 to 0.8
c) none of the above

Refrigeration and Air Conditioning - Fill in the Blanks

Refrigeration and Air Conditioning - Fill in the Blanks Points : mcqs, refrigeration and air conditioning, refrigeration and air conditioning fill in the blanks with answer key, refrigeration and air conditioning objective type question answers, absorption & refrigeration fill in the blanks, steam jet refrigeration system fill in the blanks, air washer fill in the blanks, screw compressor fill in the blanks, commercial air conditioning fill in the blanks, humidifiers and dehumidifier fill in the blanks, ice plants fill in the blanks,

1. Air washer has two types.
2. Air washer is primarily employed in industrial air conditioning applications.
3. The unitary spray air washer requires considerable less space than a central station type.

Refrigeration and Air Conditioning - True and False

Refrigeration and Air Conditioning - True and False Points : Mcqs with answer key, Refrigeration and Air Conditioning, Refrigeration and Air Conditioning True and False with answer key, Refrigeration and Air Conditioning Objective Type Question Answers, Absorption & Refrigeration True and False, Steam Jet Refrigeration System True and False, Air Washer True and False, Screw Compressor True and False, Commercial Air Conditioning True and False, Humidifiers and Dehumidifier True and False, Ice Plants True and False,

1. In a steam jet system closed chilled water is more efficient. False
2. In a steam jet refrigeration system the steam supply should be free from suspended or dissolved solids carry over from the boiler otherwise the nozzle may plug. True
3. A steam jet system is a vacuum refrigerant system. True

Advantages and Disadvantages of Steam Jet Refrigeration System

Advantages and Disadvantages of Steam Jet Refrigeration System Points : advantages and disadvantages of steam jet refrigeration system Advantages

1. En sizes above 75 tonnes, the initial cast of steam jet system is competitive with vapour compression machines and operating cost is hardly 50% of the mechanical compression system.

Advantages and Disadvantages of Thermoelectric Refrigeration System

Advantages and Disadvantages of Thermoelectric Refrigeration System Points : advantages and disadvantages of thermoelectric refrigeration system Advantages

1. An interchange of heating and cooling process can be exercised just by reversing the polarity.
2. The weight per unit refrigeration .is considerably lower than convention al refrigeration system.

Advantages and Disadvantages of Vortex-Tube Refrigeration System

Advantages and Disadvantages of Vortex-Tube Refrigeration System Points : advantages and disadvantages of vortex-tube refrigeration system Advantages

1. There is no leakage problem as it uses only air as the refrigerant.
2. Initial cost is low. At places where compressed air is readily available, its working expanses are also low.
3. Requires less space.

Advantages and Disadvantages of Mixed Refrigerant System

Advantages and Disadvantages of Mixed Refrigerant System Points : advantages and disadvantages of mixed refrigerant system Advantages

1. Evaporation temperature variation at, a given refrigerating effect or refrigerating effect variations at a given evaporation temperature is feasible.
2. It is possible to reduce condenser pressure by addition of higher boiling point refrigerant.

Advantages and Disadvantages of Cascade Refrigeration System

Advantages and Disadvantages of Cascade Refrigeration System Points : advantages and disadvantages of cascade refrigeration system Advantages

1. It also reduces the lubricating problems since the lubricant associated with each, refrigerant has to withstand a temperature range not more than 60°C whereas in multistage system, the lubricant can have to be working over temperature range of order of 105°C.