HVAC ACTUAL Exam Questions Correctly
Answered and Updated!!!
A compressor can be considered a ________ - ANSWER vapor pump
The most common compressors used in residential, light commercial air conditioning,
and refrigeration are the ________, the ________, and the ________. - ANSWER
reciprocating, scroll, and rotary
The ________ compressor uses a piston in a cylinder to compress the refrigerant. -
ANSWER reciprocating
The ________ compressor is one of the latest compressors to be developed and has an
entirely different working mechanism. - ANSWER scroll
In a ______ compressor, one surface orbits inside of a stationary surface to squeeze the
refrigerant from the low pressure side to the high pressure side - ANSWER scroll
The ________ compressor is used in large air conditioning systems. - ANSWER
centrifugal
The ________ compressor is also used for the same reason as the centrifugal
compressor except it is also applied to low-temperature applications in refrigeration. -
ANSWER screw
The ________ compressor uses a rotating piston and slide valve to create compression. -
ANSWER rotary
, In a ______ compressor, several stages of compression are taking place at the same
time, making it a very smooth running compressor with few moving parts. - ANSWER
scroll
Element - ANSWER A substance that contains all the same kind of atoms
Compound - ANSWER Substances containing two or more different kinds of atoms that
are chemically combined.
Blend - ANSWER Two or more substances occupying the same space which do not have
molecular bonding.
Mixture - ANSWER Two or more substances occupying the same space which have
molecular bonding, bat are not chemically combined
Kinetic energy is energy in motion. - ANSWER
Water freezes at... - ANSWER 0 deg. Celsius
Which expands when heated? - ANSWER Solids
Liquids
Vapors?
Answered and Updated!!!
A compressor can be considered a ________ - ANSWER vapor pump
The most common compressors used in residential, light commercial air conditioning,
and refrigeration are the ________, the ________, and the ________. - ANSWER
reciprocating, scroll, and rotary
The ________ compressor uses a piston in a cylinder to compress the refrigerant. -
ANSWER reciprocating
The ________ compressor is one of the latest compressors to be developed and has an
entirely different working mechanism. - ANSWER scroll
In a ______ compressor, one surface orbits inside of a stationary surface to squeeze the
refrigerant from the low pressure side to the high pressure side - ANSWER scroll
The ________ compressor is used in large air conditioning systems. - ANSWER
centrifugal
The ________ compressor is also used for the same reason as the centrifugal
compressor except it is also applied to low-temperature applications in refrigeration. -
ANSWER screw
The ________ compressor uses a rotating piston and slide valve to create compression. -
ANSWER rotary
, In a ______ compressor, several stages of compression are taking place at the same
time, making it a very smooth running compressor with few moving parts. - ANSWER
scroll
Element - ANSWER A substance that contains all the same kind of atoms
Compound - ANSWER Substances containing two or more different kinds of atoms that
are chemically combined.
Blend - ANSWER Two or more substances occupying the same space which do not have
molecular bonding.
Mixture - ANSWER Two or more substances occupying the same space which have
molecular bonding, bat are not chemically combined
Kinetic energy is energy in motion. - ANSWER
Water freezes at... - ANSWER 0 deg. Celsius
Which expands when heated? - ANSWER Solids
Liquids
Vapors?
