Refrigeration Cycle Fundamentals

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What is the role of the condenser in the refrigeration cycle?

Cools down the load inside the refrigerator

Turns the vapor into liquid and absorbs heat (correct)

Expands the refrigerant

Compresses the refrigerant

What state is the refrigerant in after passing through the expansion valve?

Cold gas

Cold liquid (correct)

Warm liquid

Hot gas

In which component of the cycle does the refrigerant lose pressure and heat?

Expansion valve (correct)

Evaporator

Compressor

Condenser

What is the initial state of the refrigerant when it enters the compressor?

Hot gas Signup and view all the answers

Which component of the refrigeration cycle plays a primary role in heat exchange to cool the load inside the refrigerator?

Evaporator Signup and view all the answers

What is the best way to extinguish an LPG tank flame at the nozzle of the valve?

Shutting off the valve Signup and view all the answers

How can flammable liquid storage tanks be managed in case of a fire?

By pumping contents to an empty tank Signup and view all the answers

What is the purpose of creating fire lanes in forests?

To prevent the spread of forest fires Signup and view all the answers

How can grasses and undergrowth be utilized in combating bush fires?

By burning them ahead of an advancing fire Signup and view all the answers

What is the term used for smothering a fire by covering the burning area with a non-combustible material?

Suffocating Signup and view all the answers

How can oil spills be managed to prevent fire outbreaks?

Covering it with wet blanket or sand Signup and view all the answers

What method involves reducing the concentration of oxygen below the level needed for combustion?

'Smothering' the fire with inert gas Signup and view all the answers

'Suffocating' a fire refers to which action?

'Smothering' it with non-combustible material Signup and view all the answers

'Reducing heat below the kindling point or flashpoint' stops combustible vapors release. What is another effect of this action?

'Reducing' oxygen levels in the area Signup and view all the answers

What is used to reduce heat below the kindling point?

Decreasing heat sources Signup and view all the answers