HVAC NOCTI HVAC/R Technologies
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Which split phase motor has the lowest starting torque? - CORRECT ANSWER - A psc
motor has the lowest starting torque.
Which phase angle is generated by a three phase motor? - CORRECT ANSWER - 120
The coil of a current magnetic relay is wired? - CORRECT ANSWER - In series with the
run winding.
Limit switches are usually found on which type of systems? - CORRECT ANSWER -
Heating
Sensing bulb on thermostats are filled with which type of liquid? - CORRECT ANSWER -
volatile liquid
Which type of sensors do electronic thermostats use? - CORRECT ANSWER - thermistors
Which voltage do line voltage thermostats usually control? - CORRECT ANSWER - 115
and 220
Low voltage thermostats usually control which type of voltage? - CORRECT ANSWER -
24
A thermostat that can control multiple levels of heating and cooling is called a _____ thermostat.
- CORRECT ANSWER - staging