NEW
Font size
WorksheetsPRE-TEST: Prepare Refrigerant Materials
Total questions: 15
Worksheet time: 11mins
A process of altering the properties of air to more favorable conditions.
Air- condition
Automotive
Refrigeration
Welding
The process of keeping an item below room temperature by storing the item in a system or substance designed to cool or freeze.
Air- condition
Refrigeration
Automotive
Welding
This is considered the heart of the refrigeration system.
Condenser
Motor Compressor
Evaporator
Thermostat
A part of refrigerating mechanism used to cool down the hot vapor until it returns to liquid state.
Condenser
Evaporator
Motor Compressor
Thermostat
A part of refrigerating mechanism which traps moisture and impurities of liquid refrigerant from entering the refrigerant flow control.
Condenser
Evaporator
Filter Drier
Thermostat
What kind of tubing is considered strong, highly resistant to corrosion, and easily connected to the fitting by either flaring or brazing?
Aluminum
Copper
Flexible Hose
Stainless Steel
A capillary tube will control______________________.
Electricity
The flow of current
The flow of refrigerant
The temperature
The tubing intended for refrigeration and air conditioning installation should be ________.
Clean and dry
Moisturized
Oily
Wet
Which of the following tubing is installed in the suction and discharge line of the system in order to prevent vibration of the mechanism?
Copper Tube
Flexible
Plastic
Steel
What kind of tubing are used in evaporator coil inside the refrigerator?
Aluminum
Copper
Flexible Hose
Stainless Steel
The most common tubing used in refrigeration and air-conditioning is made of________.
Copper
Plastic
Wood
Zin
For obtaining high Coefficient of Performance, the pressure range of compressor should be _________.
Any value
High
Low
Optimum
The condition of refrigerant after passing through the condenser in a vapour compression system is ______________.
Saturated Liquid
Dry Saturate Vapour
Superheated Vapour
Wet Vapour
Where does the lowest temperature occur in a vapour compression cycle?
Compressor
Condenser
Evaporator
Expansion valve
The refrigerant widely used in domestic refrigerators is ________________.
Ammonia
Carbon Dioxide
R-134a
Sulphur Dioxide
