The electrical NCCER test Latest Update -

The electrical NCCER test Latest Update - Actual Exam 300 Questions and 100% Verified Correct Answers Guaranteed A+

_____ conduit is too thin to be threaded. - CORRECT ANSWER: EMT

??? are intended for the electrical protection of personnel. - CORRECT ANSWER:

GFCIS

• A heat trace cable is installed on a line that will be insulated, when should it be

megged? - CORRECT ANSWER: Before and after the insulation is put on

• inch square boxes are available with all of the following depths EXCEPT - CORRECT

ANSWER: 1 inch

A "megger" will be used to check a cable. The electrician MUST be sure thát the circuit

is - CORRECT ANSWER: De-energized and locked, tagged out, and tested

A 1 line diagram with simplified symbols indicates the - CORRECT ANSWER:

Interconnections and component parts of an electrical circuit

A 10-inch offset at 30 degrees is being made. What is the distance between center-to-

center bends? - CORRECT ANSWER: 20 inches

A 120/208 volt feeder consists of an 800 ft run of 500 kcmil aluminum wire in conduit.This feeder has 5% voltage drop. What will the phase-to-phase voltage be at the load

end? - CORRECT ANSWER: 197.60 volts

A 3 way switch, is what typeof switch/ - CORRECT ANSWER: SPDT

A 3-phase, 4-wire, 480v service requires ______ current transformer(s) - CORRECT

ANSWER: 3

A box has two 12/2 with ground cables in it, all like-colored wires have been spliced and "pigtail", how many #12 conductors should be counted in the box fill? - CORRECT

ANSWER: 5

A brass-colored terminal on a receptacle indicates that it should be used to connect

what type of wire? - CORRECT ANSWER: Hot wire

A cable rated for 5KV insulation can safely carry what MAXIMUM voltage? - CORRECT

ANSWER: 5,000 volts

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A conduit bending Hickey can be used to bend conduit from? - CORRECT ANSWER: 0-

15 degrees

A DC ammeter is connected? - CORRECT ANSWER: In series with the circuit

A device labeled CO/ALR can be used with ______ wire. - CORRECT ANSWER:

Aluminum, copper, or copper-clad aluminum

A drawing showing a point A to point B hookup of conductors is called a - CORRECT

ANSWER: Wiring diagram

A dropout plate is best described as a. - CORRECT ANSWER: Plate with a curved

surface for cable to follow as it passes from the tray

A good electrical connection should - CORRECT ANSWER: Be mechanically and

electrically secure

A grounding electrode conductor must be connected _____ of a main distribution panel.

- CORRECT ANSWER: To the neutral terminal bus

A heat trace cable is installed on a line that will be insulated. When will the cable be "megged"? - CORRECT ANSWER: Before and after the insulation is put on the line

A holding contact in a motor starter normally connected in parallel with? - CORRECT

ANSWER: The start push button

A holding contact na motor starter is normally connected in parallel with the -

CORRECT ANSWER: Start push button

A quick test that can be made to determine if an installation is good is known as a(n) _

test. - CORRECT ANSWER: Go/No Go

A section of a cable tray that makes 2 vertical 90 degree turns is known as? -

CORRECT ANSWER: A vertical "T"

A sectional drawing is a? - CORRECT ANSWER: Cutaway view of a building or object

A switch labeled "AL-CU" can be used with what type of wire? - CORRECT ANSWER: Aluminum Copper or Copper Clad Aluminum

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: - CORRECT ANSWER: 90Volts

A transformer has a turn ratio of 5:1, what will be the voltage on the secondary if primary voltage is 120v? - CORRECT ANSWER: 24 volts 2 / 3

A transformer with 100 turns in its primary coil and 10 turns in its secondary coil is a_

transformer. - CORRECT ANSWER: Step-down

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

A Type ?? conduit body has a threaded straight hub on each end and another threaded

hub perpendicular to these two. - CORRECT ANSWER: T

A voltage of 1 volt applied across a resistance of 1 ohm produces a current of 1 amp. If the voltage is doubled and the resistance is halved, then the current - CORRECT

ANSWER: Increases 4 times

A voltmeter is connected in. - CORRECT ANSWER: Parallel with the circuit

A VOM measures - CORRECT ANSWER: Ohms, amps, and volts

A(n). ______ operates on the same principle as a current transformer. - CORRECT

ANSWER: Clamp-on ammeter

According to Ohm's Law, the amount of current in a circuit is equal to the - CORRECT

ANSWER: Voltage divided by the resistance

After a hazard review is completed, ________ determine(s) the classification of a confined space as a nonpermit or permit-required confined space - CORRECT

ANSWER: The supervisor and project/safety managers

All of the following apply to the installation of junction boxes, splices boxes, and pull

boxes except that they must be? - CORRECT ANSWER: Metal

All of the following are common service voltages in the United States EXCEPT: -

CORRECT ANSWER: 372/575 3-PHASE, 4-WIRE

All of the following are found on an elevation view of a motor control center, EXCEPT -

CORRECT ANSWER: LOCATION OF MOTOR

All of the following are standard fuse size EXCEPT? - CORRECT ANSWER: 550 or 601

All of the following are standard fuse sizes EXCEPT - CORRECT ANSWER: 550 AMP

All of the following connectors may be used for splicing high voltage cable EXCEPT? -

CORRECT ANSWER: Split-bolt connectors

All of the following information is found on a one-line diagram of a substation EXCEPT?

- CORRECT ANSWER: The Scale

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