EPA 608 Exam Test Free Online Quiz 2022 Technician Certification Core Practice Test

R-134a belongs to which of the following refrigerant group:

Which of the following when mixed with refrigerants cannot cause an explosion:

Which type of leak detector works by drawing the vapor into the system and heating it:

If icing occurs on the sight glass, which of the following is used to remove the ice:

The compound gauge of gauge manifold set measures which of the following:

Nitrogen reacts with hydrogen to form which of the following:

Two refrigerants are not allowed to collect into one recovery cylinder because:

If the vacuum pump used is too large,  water removal from the system will become:

____ recovery is the fastest and takes up less volume per pound of refrigerant to recover:

The purged nitrogen gas shall be:

______ leak detector listens for the noise of gas leakage:

R-22 belongs to which of the following refrigerant group:

______ is used to  the push-pull recovery method of refrigeration:

Ternary blend refrigerant consists of ______ mixture of refrigerants:

Which of the following not correct with reference to three ‘R’ s:

Refrigeration technicians who violate the Clean Air Act may:

In Halide torch leak test if there is a refrigerant leak, the flame will turn:

Which of the following is not a desirable property of a good refrigerant:

Refrigerant will be in  _____ phase in suction line:

Tendency to leak of the refrigerant depends on which of the following:

The temperature at which the refrigerant starts to evaporate is:

High pressure gauge of gauge manifold will have which of the following color:

As the pressure on the refrigeration liquid increases, boiling point of the refrigeration liquid:

_____ is the reaction of refrigerant with water:

Atmospheric pressure is ______ pounds per square inch:

According to Clean Air Act (CAA), R-22 must be:

Asphyxia is a condition caused because of lack of which of following:

Recovery is done in order to have which of the following:

The fastest way to dehydrate a system is with which of the following:

Only cylinders designated as “refillable” by the _______ can be used for refrigerant recovery:

_____ is the amount of heat required to change the refrigerant from a liquid to a gas:

Refrigerants will be of high pressure hot vapor phase in which of the following:

Reclaimed refrigerant must meet the standard set forth in _____ before it can be resold