CFESA-Refrigeration Operator-Test
Questions with Quality/Complete
Answers 2026 Edition.
What is energy? - Answer the capacity of a body to do work
What is velocity? - Answer Rate of change of your position
What is acceleration? - Answer the rate of change of velocity
What is compression ratio? - Answer Discharge divided by suction
What is Mass? - Answer the quantity of matter that a body contains
What is force? - Answer Any action on a body who tends to change:
Size, Shape or State
What is kenetic energy? - Answer The ability of a body to do work due to its motion
What is potential energy? - Answer the ability of a body to do work by virtue of its position
Welding - Answer the joining of two or more pieced of metal by the application of heat and
sometimes pressure
Arc welding - Answer the process of fusion is obtained by heating with an electric arc(s)
Braze welding - Answer a form of fusion welding where the base metal is not fused but is
heated bu an oxyacetylene torch
What is an oxidizing agent? - Answer A chemical substance that can supply to react with
hydrogent or with metals
What is a reducing agent? - Answer fuels in the combustion process where they combine with
an oxidizing agent
temperature - Answer a measure of the molecular activity occurring within a substance
, the four class letters, shapes and colour code of a fire extinguisher - Answer Green triangle - A
- ordinary combustibles
Red Square - B - Flammable Liquids
Blue Circle - C - Electrical
Yellow Star - D - combustible metals
The 7 most important physical elements of a refrigerant - Answer Density
Odour
leakage tendency
Miscibility
Moisture Reaction
Flammability
Toxicity
The 6 types of pipe joints - Answer Soldered
Screwed
Flanged
Flared
Brazed
Welded
the 7 units of measurements on a psychometric chart - Answer Dry bulb temperature
Wet bulb temperature
Relative humidity
Specific Humidity
Dew-point
Specific volume
enthalpy
5 accessories air handling units are equipped with - Answer Fan
Filters
Humidifier
heating and cooling
motorized dampers
Questions with Quality/Complete
Answers 2026 Edition.
What is energy? - Answer the capacity of a body to do work
What is velocity? - Answer Rate of change of your position
What is acceleration? - Answer the rate of change of velocity
What is compression ratio? - Answer Discharge divided by suction
What is Mass? - Answer the quantity of matter that a body contains
What is force? - Answer Any action on a body who tends to change:
Size, Shape or State
What is kenetic energy? - Answer The ability of a body to do work due to its motion
What is potential energy? - Answer the ability of a body to do work by virtue of its position
Welding - Answer the joining of two or more pieced of metal by the application of heat and
sometimes pressure
Arc welding - Answer the process of fusion is obtained by heating with an electric arc(s)
Braze welding - Answer a form of fusion welding where the base metal is not fused but is
heated bu an oxyacetylene torch
What is an oxidizing agent? - Answer A chemical substance that can supply to react with
hydrogent or with metals
What is a reducing agent? - Answer fuels in the combustion process where they combine with
an oxidizing agent
temperature - Answer a measure of the molecular activity occurring within a substance
, the four class letters, shapes and colour code of a fire extinguisher - Answer Green triangle - A
- ordinary combustibles
Red Square - B - Flammable Liquids
Blue Circle - C - Electrical
Yellow Star - D - combustible metals
The 7 most important physical elements of a refrigerant - Answer Density
Odour
leakage tendency
Miscibility
Moisture Reaction
Flammability
Toxicity
The 6 types of pipe joints - Answer Soldered
Screwed
Flanged
Flared
Brazed
Welded
the 7 units of measurements on a psychometric chart - Answer Dry bulb temperature
Wet bulb temperature
Relative humidity
Specific Humidity
Dew-point
Specific volume
enthalpy
5 accessories air handling units are equipped with - Answer Fan
Filters
Humidifier
heating and cooling
motorized dampers
