TPC 210 ELECTRICAL TROUBLESHOOTING
QUESTIONS AND CORRECT ANSWERS
Memory can be built into either a pneumatic or electric control circuit
containing only monostable devices by using
a time-delay relay
feedback
logic functions
static control Right Ans - feedback
On architectural working drawings, an electrician is concerned mainly with the
electrical drawings superimposed on the
floor plan
front elevation
side view
site plan Right Ans - floor plan
In a shunt motor, the field windings are separately ____________ so they carry
just a fraction of the load current compared to the full load current of the series
motor's field windings.
balanced
excited
forged
wired Right Ans - excited
Which of the following is not typically used to identify conductors in a motor-
control circuit?
Colors
Letters
Numbers
Letter/number combinations Right Ans - Colors
Which are most affected by overvoltage?
, Capacitor-start motors
Slow-speed motors
Split-phase motors
Squirrel-cage motors Right Ans - Slow-speed motors
In the identification 8TR15XTO, the X indicates
de-energized
extended
normally closed
normally open Right Ans - normally closed
Which of the following provides both overload protection and short-circuit
protection in one unit?
Circuit breaker
Combination motor starter
Fused safety switch
Thermal overload relay Right Ans - Combination motor starter
The following symbol represents an ____________ outlet in a ____________.
extension cord; ceiling
extension cord; wall
exit light; ceiling
exit light; wall Right Ans - exit light; wall
A sequence of operation consists of two elements: a log and a
CD
graph
manual
print Right Ans - graph
If you find a defective relay coil, you should replace it. Test the new coil for
proper ____________ with a ____________.
insulation; megohmmeter
resistance; ohmmeter
current; clamp-on ammeter
QUESTIONS AND CORRECT ANSWERS
Memory can be built into either a pneumatic or electric control circuit
containing only monostable devices by using
a time-delay relay
feedback
logic functions
static control Right Ans - feedback
On architectural working drawings, an electrician is concerned mainly with the
electrical drawings superimposed on the
floor plan
front elevation
side view
site plan Right Ans - floor plan
In a shunt motor, the field windings are separately ____________ so they carry
just a fraction of the load current compared to the full load current of the series
motor's field windings.
balanced
excited
forged
wired Right Ans - excited
Which of the following is not typically used to identify conductors in a motor-
control circuit?
Colors
Letters
Numbers
Letter/number combinations Right Ans - Colors
Which are most affected by overvoltage?
, Capacitor-start motors
Slow-speed motors
Split-phase motors
Squirrel-cage motors Right Ans - Slow-speed motors
In the identification 8TR15XTO, the X indicates
de-energized
extended
normally closed
normally open Right Ans - normally closed
Which of the following provides both overload protection and short-circuit
protection in one unit?
Circuit breaker
Combination motor starter
Fused safety switch
Thermal overload relay Right Ans - Combination motor starter
The following symbol represents an ____________ outlet in a ____________.
extension cord; ceiling
extension cord; wall
exit light; ceiling
exit light; wall Right Ans - exit light; wall
A sequence of operation consists of two elements: a log and a
CD
graph
manual
print Right Ans - graph
If you find a defective relay coil, you should replace it. Test the new coil for
proper ____________ with a ____________.
insulation; megohmmeter
resistance; ohmmeter
current; clamp-on ammeter
