BOMA ELECTRICAL MOTOR CONTROLS EXAM QUESTIONS WITH CORRECT ANSWERS ALL VERIFIED BY AN EXPERT A+ GRADED (LATEST UPDATE)
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Course
BOMA - Instrumentation & Controls
Institution
BOMA - Instrumentation & Controls
A holding contact or maintaining contact in a magnetic motor starter is normally connected in parallel with the? - ANS Stop push button, start push button, and starter coil
The armatures of both AC and DC contactors must move freely or? - ANS all the contacts may weld together
Which of ...
ALL VERIFIED BY AN EXPERT
A+ GRADED (LATEST UPDATE)
, A holding contact or maintaining contact in a magnetic motor starter is normally connected in
parallel with the? - ANS Stop push button, start push button, and starter coil
The armatures of both AC and DC contactors must move freely or? - ANS all the contacts may
weld together
Which of the following devices prevent motors from drawing too much current? - ANS
overloads
The primary difference between a motor starter and a motor contactor is the starter has an? -
K
ANS overload protection
The purpose of a reduced motor is to? - ANS reduce voltage on motor starter
C
Two speed motors require 2 sets of overloads to monitor the motor heating characteristics at
each speed? - ANS true
LO
Over current protection is provided for an electric motor to prevent damage to the windings from
the heating effect of excessive current? - ANS true
The current interrupting capability of a fuse breaker is to? - ANS the maximum amperage it
YC
should conduct during normal operation
Reduce voltage starting is used as a means of? - ANS reducing the starting current
The speed of an AC squirrel cage motor can be changed by? - ANS Changing the number of
poles
D
A short circuit ground fault device may consist of? - ANS A fuse and a circuit breaker
U
A small size motor starter is given the designation of 00? - ANS True
In a process control, the time it takes for a change in the process to be felt at the measuring
ST
device is called? - ANS delay
A relay is a device that can transfer an action from one circuit to another without an electrical
connection between the two circuits? - ANS True
What is meant by EP switch? - ANS Electric Pneumatic operated switch
When using a fuse jumper for troubleshooting, be sure never to connect the jumper between? -
ANS L1 and L2
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