List of top Air Conditioning and Refrigeration Questions

Explain the central air conditioning system.
Draw a neat and labelled diagram of an ice plant.
Explain high pressure cutout with a neat sketch.
Describe the importance of a filter in an air conditioning unit.
Explain the ‘downward system’ of air distribution with a neat sketch.
Describe the function of a capillary tube. Write its advantages and disadvantages.
Write the function of a condenser.
Describe the psychrometric process of ‘Mixing of two air streams’.
Explain the different modes of ‘Heat Transfer’.
Enumerate the properties of refrigerant R-22.
What are thermal insulating materials ?
Why is text formatting necessary in a spreadsheet ? Mention any two ways of formatting content in a spreadsheet.
Mention four plants, which are used to make our home toxin free.
Write any four government schemes that helps small scale entrepreneurs to gain capital.
Write the steps to produce a transparent and good quality ice.
Enlist the four ways to manage stress.
Describe the process of ‘Sensible Heating’.
These type of fans are not used in an air conditioning plant.
What is the air temperature range in air blast freezers ?
What is the function of a drier in a refrigeration system ?
State four key communication skills.
The relay which is operated by the heat produced due to flow of electric current –
It is not a duct system –
The freon group of refrigerants are
Heat is transfered in a metal rod heated at one end