HVAC 102 BASIC ELECTRICITY FINAL
EXAM 2025/2026 EXAM QUESTIONS
AND ANSWERS | 100% PASS
1. Which can replace a 220 volt 20 MFD capacitor - 🧠 ANSWER ✔✔D.
None of the above (All options don't make sense) (microfarads can't differ
from replacement?)
2. When hooking up a transformer that has multiple primary leads for
different voltages the unused leads would be ________. - 🧠 ANSWER
✔✔capped off with wire buts individually. Preventing shorts
3. If a circuit breaker or fuse trips immediately upon power, most
likely________ - 🧠 ANSWER ✔✔direct short to ground
4. When replacing a half horse motor with another half horse motor
_________ - 🧠 ANSWER ✔✔check the amp draw and speed of the motor
, WHEN RUNNING A 208-230v motor ________ - 🧠 ANSWER ✔✔A. should
be 208 - 230 volts
6. The reason for having a resistor solder to a start capacitor terminal is so
_________ - 🧠 ANSWER ✔✔It will bleed off the wattage and keep the
motor from workin too hard
7. The purpose of a megohmmeter is to________. - 🧠 ANSWER ✔✔can
help to find places in the windings where the insulation is getting weak
The biggest advantage of an ECM motor is that _______ - 🧠 ANSWER
✔✔It can change its speed in response to what it senses in the system.
A split phase motor has a ____ winding and a _____ winding. - 🧠 ANSWER
✔✔Start, run
The Back EMF of a motor is ________ - 🧠 ANSWER ✔✔all the above
(induced in start winding, voltage is higher than applied voltage, used to
operate a potential relay
A split phase motor can use a ______ to energize and de energize The
start winding - 🧠 ANSWER ✔✔Centrifugal switch
EXAM 2025/2026 EXAM QUESTIONS
AND ANSWERS | 100% PASS
1. Which can replace a 220 volt 20 MFD capacitor - 🧠 ANSWER ✔✔D.
None of the above (All options don't make sense) (microfarads can't differ
from replacement?)
2. When hooking up a transformer that has multiple primary leads for
different voltages the unused leads would be ________. - 🧠 ANSWER
✔✔capped off with wire buts individually. Preventing shorts
3. If a circuit breaker or fuse trips immediately upon power, most
likely________ - 🧠 ANSWER ✔✔direct short to ground
4. When replacing a half horse motor with another half horse motor
_________ - 🧠 ANSWER ✔✔check the amp draw and speed of the motor
, WHEN RUNNING A 208-230v motor ________ - 🧠 ANSWER ✔✔A. should
be 208 - 230 volts
6. The reason for having a resistor solder to a start capacitor terminal is so
_________ - 🧠 ANSWER ✔✔It will bleed off the wattage and keep the
motor from workin too hard
7. The purpose of a megohmmeter is to________. - 🧠 ANSWER ✔✔can
help to find places in the windings where the insulation is getting weak
The biggest advantage of an ECM motor is that _______ - 🧠 ANSWER
✔✔It can change its speed in response to what it senses in the system.
A split phase motor has a ____ winding and a _____ winding. - 🧠 ANSWER
✔✔Start, run
The Back EMF of a motor is ________ - 🧠 ANSWER ✔✔all the above
(induced in start winding, voltage is higher than applied voltage, used to
operate a potential relay
A split phase motor can use a ______ to energize and de energize The
start winding - 🧠 ANSWER ✔✔Centrifugal switch
