age 1 of 99
NATE AIR CONDITIONING AND HEAT PUMPS FINAL
EXAM PREP 2025/2026 ACCURATE QUESTIONS WITH
CORRECT DETAILED ANSWERS ||100% GUARANTEED
PASS <RECENT VERSION>
When using a standard clamp-on ammeter, you should ____
before taking a reading.
a. disconnect all of the wires in the circuit being tested
b. make sure that the jaws are closed
c. make sure that the jaws are open
d. shut down and lock out the equipment being tested
.......Answer.........b (make sure that the jaws are closed)
,age 2 of 99
When testing compressor windings, you take the following
readings:
C to R: 2 Ω
C to S: infinite resistance
R to S: infinite resistance
What is the diagnosis?
a. The compressor is good
b. The run winding is shorted
c. The start winding is shorted
d. The start winding is open .......Answer.........d (The start winding
is open)
,age 3 of 99
Capacitance meters must be used on capacitors ____.
a. connected in series
b. connected in parallel
c. in live circuits
d. that have been removed from the circuit .......Answer.........d
(that have been removed from the circuit)
When testing a thermostat wire that has been removed from the
circuit, you measure 0 Ω between red and white. This indicates
that ____.
a. the transformer is bad
b. the wiring is good
c. there is high resistance in the wire
, age 4 of 99
d. there is a short .......Answer.........d (there is a short)
When testing with an ammeter, you should place the meter
____.
a. in series with the circuit being tested
b. in parallel with the circuit being tested
c. on the highest possible setting
d. on the lowest possible setting .......Answer.........a (in series with
the circuit being tested)
Heat Anticipators .......Answer.........Are wired in series
Cooling anticipators .......Answer.........Are wired parallel
Low pressure switches detects .......Answer.........a loss of
refrigerant
NATE AIR CONDITIONING AND HEAT PUMPS FINAL
EXAM PREP 2025/2026 ACCURATE QUESTIONS WITH
CORRECT DETAILED ANSWERS ||100% GUARANTEED
PASS <RECENT VERSION>
When using a standard clamp-on ammeter, you should ____
before taking a reading.
a. disconnect all of the wires in the circuit being tested
b. make sure that the jaws are closed
c. make sure that the jaws are open
d. shut down and lock out the equipment being tested
.......Answer.........b (make sure that the jaws are closed)
,age 2 of 99
When testing compressor windings, you take the following
readings:
C to R: 2 Ω
C to S: infinite resistance
R to S: infinite resistance
What is the diagnosis?
a. The compressor is good
b. The run winding is shorted
c. The start winding is shorted
d. The start winding is open .......Answer.........d (The start winding
is open)
,age 3 of 99
Capacitance meters must be used on capacitors ____.
a. connected in series
b. connected in parallel
c. in live circuits
d. that have been removed from the circuit .......Answer.........d
(that have been removed from the circuit)
When testing a thermostat wire that has been removed from the
circuit, you measure 0 Ω between red and white. This indicates
that ____.
a. the transformer is bad
b. the wiring is good
c. there is high resistance in the wire
, age 4 of 99
d. there is a short .......Answer.........d (there is a short)
When testing with an ammeter, you should place the meter
____.
a. in series with the circuit being tested
b. in parallel with the circuit being tested
c. on the highest possible setting
d. on the lowest possible setting .......Answer.........a (in series with
the circuit being tested)
Heat Anticipators .......Answer.........Are wired in series
Cooling anticipators .......Answer.........Are wired parallel
Low pressure switches detects .......Answer.........a loss of
refrigerant
