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Electrician NCCER Test (Electrical Study Guide) All 25 Pages Questions and Answers 100% Guaranteed Pass $13.49   Add to cart

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Electrician NCCER Test (Electrical Study Guide) All 25 Pages Questions and Answers 100% Guaranteed Pass

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  • NCCER Electrical

Electrician NCCER Test (Electrical Study Guide) All 25 Pages Questions and Answers 100% Guaranteed Pass Which article of the NEC covers grounding? - ANS Article 250 What is a dropout plate? - ANS Metal plate with a curve surface for cable to follow as it passes from the tray All of the...

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  • August 28, 2024
  • 25
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NCCER Electrical
  • NCCER Electrical
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JPNAOMISTUVIA
Electrician NCCER Test (Electrical Study
Guide) All 25 Pages Questions and
Answers 100% Guaranteed Pass
Which article of the NEC covers grounding? - ANS Article 250

What is a dropout plate? - ANS Metal plate with a curve surface for cable to follow as




A
it passes from the tray




VI
All of the following are common service voltages in the United States Except: - ANS
372/575 3-Phase, 4-wire




TU
What does a GFCI breaker do? - ANS Opens a circuit to prevent operation of an
electrical device

What will happen when one or more coils in a winding are grounded? - ANS The
IS
motor will automatically blow fuses

eight incandescent lighting fixtures are to be installed. Each fixture is 120 volts, with a
OM

200-whatt lamp what is the total connected load? - ANS 13.3 Amps

The __________must be grounded in a bussed glutter if use as the main service
equipmemt - ANS Neutral busbar
NA


When wall mounting cable tray, ensure that - ANS The building structure is strong
enough to support the tray system

The purpose of sealing cable ends when reels of cable are in storage is
JP




______________ - ANS to keep moisture from creeping in

The outer covering on liquid-tight flexible metal conduit is use for - ANS A moisture
seal

A good electrical connection should - ANS Be mechanically and electrically secure

The symbol normally use for duplex - ANS Circle with two parallel lines draw through
it

,Disconnecting means are covered in - ANS NEC section 110-22

In relation to switches, the term throw refers to the - ANS Number of internal
operations that switch can perform

A 3-phase, 4-wire, 480v service requires ________ current transformers - ANS 3

Services conductors and equipment are covered in - ANS NEC Article 230




A
The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits
be__________ receptacles - ANS Grounding




VI
The circular mil is based on the - ANS Cross-sectional area of the wire




TU
A transformer with the primary of 400 turns and a secondary of 300 turns has a - ANS
Step down turns ratio of 4:3

Of the termination classes listed below,_____ is the only one that provides a seal
IS
against external elements - ANS Class 1

Unless otherwise noted, the calculations in AC circuits ______ values - ANS Rms
OM

When the coil turns increased the ________ - ANS Induced voltage is increased

As the temperature surrounding a self regulating heating cable rises, the ________ -
ANS Resistance of the polymeric core increases
NA


The motor type that has the highest starting torque is the _________ motor - ANS
Capacitor - start

For a given number of poles, the________ determines the speed of an AC Motor. -
JP




ANS Frequency

Both induction and synchronous motor operate on the principle of the
rotating________field - ANS 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 - ANS 90 Volts

, The output capacity of a motor is rated in - ANS Horsepower

The synchronous speed at witcha 4 pole, 60 Hz induction motor operates is ________
rpm - ANS 1800

The sine of 0 degree is - ANS 0

In a AC circuit containing resistance only, _______ 12A will flow if the resistance is 10
ohms and the voltage is 120V - ANS 12A




A
The _____ rotor types are generally rugged - ANS Squirrel cage




VI
The componente labeled 7 in figure 1 is a (an) - ANS End seal

Meters used in AC circuits indicate the_______ - ANS Effective




TU
Proofs tests are made at________ oF the original factory voltage - ANS 60%

Which type of heating cable can not be cut and terminated in the field? - ANS Mineral
IS
insulated

The secondary of a CT under load should not be opened because of______ - ANS
OM

Induced hight voltage

In a transformer,______ - ANS Electromagnetic induction occurs

When a ground rod is installed, the top of the rod must be positioned _____.grade -
NA


ANS Flush with or below

When making offset bends, the two kicks must be made perfectly parallel or the
resulting offset will have a ________ - ANS Crooked bend
JP




All of the following types of condulet may be used as a pulling point for conduit that
requires a 90 degree change in direction, except_______ - ANS C

To be effective, a grounding system must limit the voltage on the electrical system and
protect it from all of the following, except ______ - ANS Undervoltage conditions

What is the most common service use in a temporary power panel? - ANS 120/240
volt, 1-phase, 3-wire

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