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