SACA Study Guide Motor Control questions with
verified answers
_______ is a method of representing one component with several symbols in
various locations on a ladder diagram. Ans✓✓✓-Detached symbology
_______ protection on a manual starter will prevent the automatic restart of a
motor when recovering from a power loss. Ans✓✓✓-Undervoltage
A _______ is often used to allow an operator or technician to change a machine
from the automatic mode to the manual mode. Ans✓✓✓-Selector switch
A circuit must be disconnected to use a clamp-on ammeter to measure the circuit.
Ans✓✓✓-False
A control relay is designed to switch components on and off only when it receives
a manual input. Ans✓✓✓-False
A control relay is designed to switch Ans✓✓✓-True
A ground fault occurs when __________.
A. the ground conductor is opened
B. one of the phases is opened
C. one of the phases becomes grounded
D. the system becomes unbalanced Ans✓✓✓-One of the phases becomes
ungrounded
, A ground fault occurs when _______. Ans✓✓✓-one of the phases becomes
grounded
A grounded neutral wire can be used as an equipment ground. Ans✓✓✓-False
A grounded neutral wire can be used as an equipment ground. Ans✓✓✓-False
A Hand-Off_Automatic (H-O-A) circuit requires a selector switch with _______
positions. Ans✓✓✓-3
A ladder diagram arranges the conductors in straight horizontal lines, like rungs
on a ladder, with only outputs on each rung. Ans✓✓✓-False
A magnetic overload includes a dashpot which allows adjustments to the
response time of the overload. Ans✓✓✓-True
A motor starter is the same as a motor controller. Ans✓✓✓-False
A push-to-test light is exactly the same as a regular indicator lamp, except it has a
special color lens. Ans✓✓✓-False
A push-to-test pilot light allows the operator to test the indicator bulb to make
sure it works. Ans✓✓✓-True
verified answers
_______ is a method of representing one component with several symbols in
various locations on a ladder diagram. Ans✓✓✓-Detached symbology
_______ protection on a manual starter will prevent the automatic restart of a
motor when recovering from a power loss. Ans✓✓✓-Undervoltage
A _______ is often used to allow an operator or technician to change a machine
from the automatic mode to the manual mode. Ans✓✓✓-Selector switch
A circuit must be disconnected to use a clamp-on ammeter to measure the circuit.
Ans✓✓✓-False
A control relay is designed to switch components on and off only when it receives
a manual input. Ans✓✓✓-False
A control relay is designed to switch Ans✓✓✓-True
A ground fault occurs when __________.
A. the ground conductor is opened
B. one of the phases is opened
C. one of the phases becomes grounded
D. the system becomes unbalanced Ans✓✓✓-One of the phases becomes
ungrounded
, A ground fault occurs when _______. Ans✓✓✓-one of the phases becomes
grounded
A grounded neutral wire can be used as an equipment ground. Ans✓✓✓-False
A grounded neutral wire can be used as an equipment ground. Ans✓✓✓-False
A Hand-Off_Automatic (H-O-A) circuit requires a selector switch with _______
positions. Ans✓✓✓-3
A ladder diagram arranges the conductors in straight horizontal lines, like rungs
on a ladder, with only outputs on each rung. Ans✓✓✓-False
A magnetic overload includes a dashpot which allows adjustments to the
response time of the overload. Ans✓✓✓-True
A motor starter is the same as a motor controller. Ans✓✓✓-False
A push-to-test light is exactly the same as a regular indicator lamp, except it has a
special color lens. Ans✓✓✓-False
A push-to-test pilot light allows the operator to test the indicator bulb to make
sure it works. Ans✓✓✓-True
