THE ELECTRICAL NCCER TEST EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
A transformer with the primary of 400 turns and a
secondary of 300 turns has a _____ - ANSWERS-Step-down
turns ratio of 4:3
The circular mil is based on the - ANSWERS-Cross-sectional
area of the wire
Of the termination classes listed below, ____ is the only one
that provides a seal against external elements. - ANSWERS-
Class 1
Unless otherwise noted. the calculations in AC circuits _____
values. - ANSWERS-Rms
When the coil turns are increased the _____ - ANSWERS-
Induced voltage is increased
,As the temperature surrounding a self-regulating heating
cable rises, the ____ - ANSWERS-Resistance of the polymeric
core increases
The motor type that has the highest starting torque is the
____ motor. - ANSWERS-Capacitor-start
For a given number of poles, the ____ determines the speed
of an AC motor. - ANSWERS-Frequency
Both induction and synchronous motors operate on the
principle of a rotating ____ field - ANSWERS-Magnetic
A transformer has 200 turns in the primary, 150 turns in the
secondary, and 120VAC applied to the primary. The voltage
across the secondary is: - ANSWERS-90Volts
The output capacity of a motor is rated in - ANSWERS-
Horsepower
The synchronous speed at which a pole, 60 Hz induction
motor operates is rpm. - ANSWERS-1,800
,The sine of 0 degree is - ANSWERS-0
Meters used in AC circuits indicate the - ANSWERS-Effective
The component labeled 7 in figure 1 is a(n) - ANSWERS-End
seal
In an AC circuit containing resistance only _____ will flow if
the resistance is 10 ohms and the voltage is 120V. -
ANSWERS-12A
The _____ rotor types are generally rugged. - ANSWERS-
Squirrel cage
Proofs tests are made at_ of the original factory voltage. -
ANSWERS-60%
Which type of heating cable cannot be cut and terminated
in the field? - ANSWERS-Mineral insulated
, The secondary of a CT under load should not be opened
because of_. - ANSWERS-Induced high voltage
In a transformer ______ - ANSWERS-Electromagnetic
Induction Ocurs
When a ground rod is installed, the top of the rod must be
positioned ______ grade. - ANSWERS-Flush with or below
When making offset bends, the two kicks must be made
perfectly parallel or the resulting offset will have a _____ -
ANSWERS-Crooked Bend
conduit that requires a 90 degree change in direction,
except 42.All of the following types of condulet may be used
as a pulling point for _____ - ANSWERS-C
To be effective, a grounding system must limit the voltage
on the electrical system and protect it from all of the
following, except _____ - ANSWERS-Undervoltage
conditions
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
A transformer with the primary of 400 turns and a
secondary of 300 turns has a _____ - ANSWERS-Step-down
turns ratio of 4:3
The circular mil is based on the - ANSWERS-Cross-sectional
area of the wire
Of the termination classes listed below, ____ is the only one
that provides a seal against external elements. - ANSWERS-
Class 1
Unless otherwise noted. the calculations in AC circuits _____
values. - ANSWERS-Rms
When the coil turns are increased the _____ - ANSWERS-
Induced voltage is increased
,As the temperature surrounding a self-regulating heating
cable rises, the ____ - ANSWERS-Resistance of the polymeric
core increases
The motor type that has the highest starting torque is the
____ motor. - ANSWERS-Capacitor-start
For a given number of poles, the ____ determines the speed
of an AC motor. - ANSWERS-Frequency
Both induction and synchronous motors operate on the
principle of a rotating ____ field - ANSWERS-Magnetic
A transformer has 200 turns in the primary, 150 turns in the
secondary, and 120VAC applied to the primary. The voltage
across the secondary is: - ANSWERS-90Volts
The output capacity of a motor is rated in - ANSWERS-
Horsepower
The synchronous speed at which a pole, 60 Hz induction
motor operates is rpm. - ANSWERS-1,800
,The sine of 0 degree is - ANSWERS-0
Meters used in AC circuits indicate the - ANSWERS-Effective
The component labeled 7 in figure 1 is a(n) - ANSWERS-End
seal
In an AC circuit containing resistance only _____ will flow if
the resistance is 10 ohms and the voltage is 120V. -
ANSWERS-12A
The _____ rotor types are generally rugged. - ANSWERS-
Squirrel cage
Proofs tests are made at_ of the original factory voltage. -
ANSWERS-60%
Which type of heating cable cannot be cut and terminated
in the field? - ANSWERS-Mineral insulated
, The secondary of a CT under load should not be opened
because of_. - ANSWERS-Induced high voltage
In a transformer ______ - ANSWERS-Electromagnetic
Induction Ocurs
When a ground rod is installed, the top of the rod must be
positioned ______ grade. - ANSWERS-Flush with or below
When making offset bends, the two kicks must be made
perfectly parallel or the resulting offset will have a _____ -
ANSWERS-Crooked Bend
conduit that requires a 90 degree change in direction,
except 42.All of the following types of condulet may be used
as a pulling point for _____ - ANSWERS-C
To be effective, a grounding system must limit the voltage
on the electrical system and protect it from all of the
following, except _____ - ANSWERS-Undervoltage
conditions
