ANSWER✅
The NEMA or industry standard symbol for a SPST NC, single-break switch is shown at ___
in Figure 320.12.
Select one:
a. V
b. II
c. I
d. IV
e. III
Quiz_________________?
___ has been banned for many uses in the United States.
Select one:
a. Aluminum
b. Bronze
c. Steel
d. Soft solder
1
, e. Tin
f. Brass -
ANSWER✅
d. Soft solder
Quiz_________________?
___ is the starting of a motor for short periods of time and is generally used for positioning
of a driven load.
Select one:
a. Plugging
b. Sequencing
c. Braking
d. Jogging -
ANSWER✅
d. Jogging
Quiz_________________?
___ provides standards for the construction of motors and other electrical equipment.
Select one:
a. NEMA
b. IEC
c. both a and b
d. neither a nor b -
ANSWER✅
c. both a and b
2
, Quiz_________________?
___% of workplace eye injuries can be prevented by using proper safety eyewear.
Select one:
a. 10
b. 50
c. 100
d. 90 -
ANSWER✅
d. 90
Quiz_________________?
A ___ motor can be operated from a single-phase AC circuit.
Select one:
a. series (universal)
b. capacitor
c. synchronous
d. split-phase
e. all of these -
ANSWER✅
e. all of these
Quiz_________________?
A 10°C increase in the operating temperature can decrease the life expectancy of a DC
motor by as much as ___.
Select one:
a. 10%
b. 1/3
3
, c. 1/2 -
ANSWER✅
c. 1/2
Quiz_________________?
A 230-volt coil has an impedance that is ___ a 115-volt coil. Both have 600 VA inrush
ratings.
Select one:
a. higher than
b. lower than
c. the same as -
ANSWER✅
a. higher than
Quiz_________________?
A 240-volt, 3Ø motor would require a starter with a minimum of ___ power pole(s) to
open the motor circuit.
Select one:
a. 3
b. 1
c. 2 -
ANSWER✅
a. 3
Quiz_________________?
A 3-position foot switch is normally spring loaded to return to the ___ position when the
force is removed.
4