BOMA: Electrical Motor Controls
UPDATED ACTUAL Exam Questions and
CORRECT Answers
A holding contact or maintaining contact in a magnetic motor starter is normally connected in
parallel with the? - CORRECT ANSWER - Stop push button, start push button, and starter
coil
The armatures of both AC and DC contactors must move freely or? - CORRECT
ANSWER - all the contacts may weld together
Which of the following devices prevent motors from drawing too much current? - CORRECT
ANSWER - overloads
The primary difference between a motor starter and a motor contactor is the starter has an? -
CORRECT ANSWER - overload protection
The purpose of a reduced motor is to? - CORRECT ANSWER - reduce voltage on motor
starter
Two speed motors require 2 sets of overloads to monitor the motor heating characteristics at each
speed? - CORRECT ANSWER - true
Over current protection is provided for an electric motor to prevent damage to the windings from
the heating effect of excessive current? - CORRECT ANSWER - true
The current interrupting capability of a fuse breaker is to? - CORRECT ANSWER - the
maximum amperage it should conduct during normal operation
Reduce voltage starting is used as a means of? - CORRECT ANSWER - reducing the
starting current
, The speed of an AC squirrel cage motor can be changed by? - CORRECT ANSWER -
Changing the number of poles
A short circuit ground fault device may consist of? - CORRECT ANSWER - A fuse and a
circuit breaker
A small size motor starter is given the designation of 00? - CORRECT ANSWER - True
In a process control, the time it takes for a change in the process to be felt at the measuring
device is called? - CORRECT ANSWER - delay
A relay is a device that can transfer an action from one circuit to another without an electrical
connection between the two circuits? - CORRECT ANSWER - True
What is meant by EP switch? - CORRECT ANSWER - Electric Pneumatic operated
switch
When using a fuse jumper for troubleshooting, be sure never to connect the jumper between? -
CORRECT ANSWER - L1 and L2
The first thing to check when a system is down and won't run at all is? - CORRECT
ANSWER - The AC power supply
Improper alignment of the pole faces can cause excessive hum in a AC electromagnetic or
solenoid? - CORRECT ANSWER - True
To indicate a good diode an ohm meter should? - CORRECT ANSWER - Low resistance
in one direction and high resistance in the other direction
UPDATED ACTUAL Exam Questions and
CORRECT Answers
A holding contact or maintaining contact in a magnetic motor starter is normally connected in
parallel with the? - CORRECT ANSWER - Stop push button, start push button, and starter
coil
The armatures of both AC and DC contactors must move freely or? - CORRECT
ANSWER - all the contacts may weld together
Which of the following devices prevent motors from drawing too much current? - CORRECT
ANSWER - overloads
The primary difference between a motor starter and a motor contactor is the starter has an? -
CORRECT ANSWER - overload protection
The purpose of a reduced motor is to? - CORRECT ANSWER - reduce voltage on motor
starter
Two speed motors require 2 sets of overloads to monitor the motor heating characteristics at each
speed? - CORRECT ANSWER - true
Over current protection is provided for an electric motor to prevent damage to the windings from
the heating effect of excessive current? - CORRECT ANSWER - true
The current interrupting capability of a fuse breaker is to? - CORRECT ANSWER - the
maximum amperage it should conduct during normal operation
Reduce voltage starting is used as a means of? - CORRECT ANSWER - reducing the
starting current
, The speed of an AC squirrel cage motor can be changed by? - CORRECT ANSWER -
Changing the number of poles
A short circuit ground fault device may consist of? - CORRECT ANSWER - A fuse and a
circuit breaker
A small size motor starter is given the designation of 00? - CORRECT ANSWER - True
In a process control, the time it takes for a change in the process to be felt at the measuring
device is called? - CORRECT ANSWER - delay
A relay is a device that can transfer an action from one circuit to another without an electrical
connection between the two circuits? - CORRECT ANSWER - True
What is meant by EP switch? - CORRECT ANSWER - Electric Pneumatic operated
switch
When using a fuse jumper for troubleshooting, be sure never to connect the jumper between? -
CORRECT ANSWER - L1 and L2
The first thing to check when a system is down and won't run at all is? - CORRECT
ANSWER - The AC power supply
Improper alignment of the pole faces can cause excessive hum in a AC electromagnetic or
solenoid? - CORRECT ANSWER - True
To indicate a good diode an ohm meter should? - CORRECT ANSWER - Low resistance
in one direction and high resistance in the other direction
