Refrigeration Cycle Fundamentals
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Questions and Answers

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?

<p>Hot gas (D)</p> 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?

<p>Evaporator (D)</p> Signup and view all the answers

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

<p>Shutting off the valve (C)</p> Signup and view all the answers

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

<p>By pumping contents to an empty tank (A)</p> Signup and view all the answers

What is the purpose of creating fire lanes in forests?

<p>To prevent the spread of forest fires (B)</p> Signup and view all the answers

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

<p>By burning them ahead of an advancing fire (B)</p> 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?

<p>Suffocating (D)</p> Signup and view all the answers

How can oil spills be managed to prevent fire outbreaks?

<p>Covering it with wet blanket or sand (A)</p> Signup and view all the answers

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

<p>'Smothering' the fire with inert gas (A)</p> Signup and view all the answers

'Suffocating' a fire refers to which action?

<p>'Smothering' it with non-combustible material (A)</p> 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?

<p>'Reducing' oxygen levels in the area (B)</p> Signup and view all the answers

What is used to reduce heat below the kindling point?

<p>Decreasing heat sources (A)</p> Signup and view all the answers

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