EPA 608 Type III Sample Test Questions correctly
answered already passed
1. Where do leaks commonly occur in low level
pressure sys- tems? above
a. Evaporator 2.5 mm Hg
b. Condenser
c. Purge unit
d. Gaskets or fittings
2. Where do leaks commonly occur in open-
drive type compressor systems?
a. Evaporator
b. Condenser
c. Shaft seal
d. Cooling tower
3. Does refrigerant go out of the system in low
pressure systems or does air and
moisture go in?
a. Refrigerant escapes through low pressure
leaks.
b. Air and moisture enter the refrigeration
system be- cause it operates
in a vacuum
c. Refrigerant leaks out through shaft seals
and gas- kets.
4. When should a low pressure system be leak
checked according to ASHRAE
guideline 3-1996?
a. There are specific recommendations.
b. During pressure checks
c.When the system rises from 1 mm Hg to a
,EPA 608 Type III Sample Test Questions correctly
answered already passed
d. Gaskets or fittings
c. Shaft seal
b. Air and moisture en- ter the refrigeration sys- tem because it operates
in a vacuum
c. When the system rises from 1 mm Hg to a level above 2.5 mm
Hg during vacuum testing
, EPA 608 Type III Sample Test Questions correctly
answered already passed
during vacuum testing
d. Leak check every year
5. What does a purge unit do and what is a high efficiency d. Removes
the air from
purge unit? the system. High
eflciency
a. Removes the refrigerant from the system. High effi- purge system
will
ciency purge system compress
will expel large quantities of refrigerant or
b. Removes the refrigerant from the system. suction,
High effi- ciency purge system removes
will expel very little refrigerant the air
c. Removes the oil from the system. High from the
efficiency purge system will expel system, and
very little refrigerant returns the
d. Removes the air from the system. High refrigerant
efficiency purge system will to the
expel very little refrigerant evaporator
d. Takes
6. How does a centrifugal compressor purge unit its
work? suction
a. Takes its suction from the top of the from the
evaporator, removes the air from the top of
system, and returns the refrigerant to the the
evaporator
condens
b. Takes its suction from the top of the chiller
er,
barrel, removes the air from the
removes
system, and returns the refrigerant to the
the air
evaporator
c. Takes its suction from the top of the
answered already passed
1. Where do leaks commonly occur in low level
pressure sys- tems? above
a. Evaporator 2.5 mm Hg
b. Condenser
c. Purge unit
d. Gaskets or fittings
2. Where do leaks commonly occur in open-
drive type compressor systems?
a. Evaporator
b. Condenser
c. Shaft seal
d. Cooling tower
3. Does refrigerant go out of the system in low
pressure systems or does air and
moisture go in?
a. Refrigerant escapes through low pressure
leaks.
b. Air and moisture enter the refrigeration
system be- cause it operates
in a vacuum
c. Refrigerant leaks out through shaft seals
and gas- kets.
4. When should a low pressure system be leak
checked according to ASHRAE
guideline 3-1996?
a. There are specific recommendations.
b. During pressure checks
c.When the system rises from 1 mm Hg to a
,EPA 608 Type III Sample Test Questions correctly
answered already passed
d. Gaskets or fittings
c. Shaft seal
b. Air and moisture en- ter the refrigeration sys- tem because it operates
in a vacuum
c. When the system rises from 1 mm Hg to a level above 2.5 mm
Hg during vacuum testing
, EPA 608 Type III Sample Test Questions correctly
answered already passed
during vacuum testing
d. Leak check every year
5. What does a purge unit do and what is a high efficiency d. Removes
the air from
purge unit? the system. High
eflciency
a. Removes the refrigerant from the system. High effi- purge system
will
ciency purge system compress
will expel large quantities of refrigerant or
b. Removes the refrigerant from the system. suction,
High effi- ciency purge system removes
will expel very little refrigerant the air
c. Removes the oil from the system. High from the
efficiency purge system will expel system, and
very little refrigerant returns the
d. Removes the air from the system. High refrigerant
efficiency purge system will to the
expel very little refrigerant evaporator
d. Takes
6. How does a centrifugal compressor purge unit its
work? suction
a. Takes its suction from the top of the from the
evaporator, removes the air from the top of
system, and returns the refrigerant to the the
evaporator
condens
b. Takes its suction from the top of the chiller
er,
barrel, removes the air from the
removes
system, and returns the refrigerant to the
the air
evaporator
c. Takes its suction from the top of the
