1|Page
NATE Gas Exam Preparation Version 3 Newest Verified
Exam With Complete Questions And Correct Detailed
Answers| Newest Exam!!!
A packaged heat pump must be mounted on a slab if its
location is at grade level. Whenever possible, the slab
should be located:
a. up against the structure to provide added support
b. away from the structure to minimize noise transmission
c. where it can be bonded to the structure to prevent
sinking of the slab
d. on a frame attached to the structure to improve service
access - Answers-b. away from the structure to minimize
noise transmission
Manufacturers recommend that thermostat wire used in
residential applications should not be less than
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a. 22 gauge (AWG)
b. 18 gauge (AWG)
c. 16 gauge (AWG)
d. 20 gauge (AWG) - Answers-b. 18 gauge (AWG)
7. Proper ductwork connections and sealing is critical to
good system performance. Conditions are:
* Return side leak of 15% in a ventilated attic
*2 1/2 ton system rated at 1,000 CFM
* Attic Air 95 degrees F
The loss in delivered capacity is equal to:
a. percentage of air leaked squared
b. an insignificant amount.
c. ratio of air leakage to total air
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d. inverse proportion of air leaked - Answers-a. percentage
of air leaked squared
The measurement of a heat pumps efficiency is often
stated using its 'Coefficient of Performance' or COP. The
COP of a heat pump is the:
a.the heat pumps total electrical input in
watts divided by its heat output in watts
b. the heat pump's output in watts divided
by its total electrical input in watts
c. the heat pumps cooling Btu/h rating divided by its
heating Btu/h rating
d. the heat pump's heating Btu/h rating. - Answers-b. the
heat pump's output in watts divided
by its total electrical input in watts
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One major advantage of packaged heat pumps is they:
a. head pressure rises due to the heat in the wall
b. are easily moved on the job site
c. superheat drops because of the wall installation
d. condensation on the suction line - Answers-b. are easily
moved on the job site
A dirty or clogged air filter in an operating heat pump
system can cause:
a. high suction pressure in cooling
b. low suction pressure in heating
c. low discharge pressures in heating
d. inadequate heating - Answers-d. inadequate heating
NATE Gas Exam Preparation Version 3 Newest Verified
Exam With Complete Questions And Correct Detailed
Answers| Newest Exam!!!
A packaged heat pump must be mounted on a slab if its
location is at grade level. Whenever possible, the slab
should be located:
a. up against the structure to provide added support
b. away from the structure to minimize noise transmission
c. where it can be bonded to the structure to prevent
sinking of the slab
d. on a frame attached to the structure to improve service
access - Answers-b. away from the structure to minimize
noise transmission
Manufacturers recommend that thermostat wire used in
residential applications should not be less than
,2|Page
a. 22 gauge (AWG)
b. 18 gauge (AWG)
c. 16 gauge (AWG)
d. 20 gauge (AWG) - Answers-b. 18 gauge (AWG)
7. Proper ductwork connections and sealing is critical to
good system performance. Conditions are:
* Return side leak of 15% in a ventilated attic
*2 1/2 ton system rated at 1,000 CFM
* Attic Air 95 degrees F
The loss in delivered capacity is equal to:
a. percentage of air leaked squared
b. an insignificant amount.
c. ratio of air leakage to total air
,3|Page
d. inverse proportion of air leaked - Answers-a. percentage
of air leaked squared
The measurement of a heat pumps efficiency is often
stated using its 'Coefficient of Performance' or COP. The
COP of a heat pump is the:
a.the heat pumps total electrical input in
watts divided by its heat output in watts
b. the heat pump's output in watts divided
by its total electrical input in watts
c. the heat pumps cooling Btu/h rating divided by its
heating Btu/h rating
d. the heat pump's heating Btu/h rating. - Answers-b. the
heat pump's output in watts divided
by its total electrical input in watts
, 4|Page
One major advantage of packaged heat pumps is they:
a. head pressure rises due to the heat in the wall
b. are easily moved on the job site
c. superheat drops because of the wall installation
d. condensation on the suction line - Answers-b. are easily
moved on the job site
A dirty or clogged air filter in an operating heat pump
system can cause:
a. high suction pressure in cooling
b. low suction pressure in heating
c. low discharge pressures in heating
d. inadequate heating - Answers-d. inadequate heating
