The CBSE Board is conducting Class 12 Air-conditioning & Refrigeration Exam 2026 on March 13, 2026. To assist students in their post-exam evaluation, the official Class 12 Air-conditioning & Refrigeration 2026 Question Paper with Solution PDF is now available for download.
The CBSE Class 12 Air-conditioning & Refrigeration paper covered key topics from basic refrigeration cycles, components of air-conditioning systems, thermodynamics, and maintenance of refrigeration systems. Students should focus on understanding the working principles, components, and maintenance techniques of air-conditioning and refrigeration systems. The exam is marked out of 100, with 20 marks for MCQs, 40 for descriptive questions, and 40 for practical applications and internal assessments.
CBSE Class 12 2026 Air-conditioning & Refrigeration Question Paper with Solution PDF
| CBSE Official PDF | CD PDF | CD PDF with Solutions |
|---|---|---|
| Download official PDF 0.75 MB | Download Collegedunia PDF 0.23 MB | – |
CBSE Class 12 Air-Conditioning and Refrigeration 2026 Set 4 (351) Questions with Solutions
Write the name of basic parts of speech.
Which of the following is not a parameter to describe an individual’s personality ?
Which of the following is not a type of data in spreadsheets ?
_________ includes a series of postures and breathing exercise to control the body and mind.
Which of the following encourage people to recycle household waste ?
State the meaning of “Motivation”.
The psychrometric process in which air is cooled and humidified but no heat is supplied or rejected is called ________.
The mode of heat transfer by the actual movement of particles of the medium from one place to other is called ________.
This component is used to remove the latent heat of refrigerant :
How does the L.P. cutout protect the compressor ?
Which one among the following is not an equipment of cold storage plant ?
Which is not the core component of central A.C. ?
In a window air conditioner which one among the following types of condensers is used ?
Capillary tube is a type of _________.
This type of filter is not used in an air conditioning system :
For small cold storage, the rooms are cooled _________.
The overload protector provides protection against the _________.
The evaporator which is commonly used in packaged air conditioner is
Addition of moisture to the air, without any change in its dry bulb temperature is known as
Which one of the following is not a property of a thermal insulating material ?
The psychrometric process generally used in heat pump :
The insulating material is best for domestic refrigerators is
The refrigerant R-11 is
H.P. cutout is essential in the refrigeration systems using ________.
In ice making, thawing of ice means
A grill provided with a damper or control valve is known as
Poultry meat is preserved by _________.
Which one among the following is not present in a household refrigerator ?
Which one among the following is not a control device ?
An environment friendly refrigerant used in a household refrigerator is
Heat is transfered in a metal rod heated at one end
Which one among the following is not a psychrometric process ?
The freon group of refrigerants are
It is not a duct system –
The relay which is operated by the heat produced due to flow of electric current –
What is the air temperature range in air blast freezers ?
These type of fans are not used in an air conditioning plant.
What is the function of a drier in a refrigeration system ?
State four key communication skills.
Enlist the four ways to manage stress.
Why is text formatting necessary in a spreadsheet ? Mention any two ways of formatting content in a spreadsheet.
Write any four government schemes that helps small scale entrepreneurs to gain capital.
Mention four plants, which are used to make our home toxin free.
Describe the process of ‘Sensible Heating’.
What are thermal insulating materials ?
Write the steps to produce a transparent and good quality ice.
Describe the importance of a filter in an air conditioning unit.
Write the function of a condenser.
Explain the different modes of ‘Heat Transfer’.
Describe the psychrometric process of ‘Mixing of two air streams’.
Enumerate the properties of refrigerant R-22.
Explain the ‘downward system’ of air distribution with a neat sketch.
Describe the function of a capillary tube. Write its advantages and disadvantages.
Explain high pressure cutout with a neat sketch.
Draw a neat and labelled diagram of an ice plant.
Explain the central air conditioning system.
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