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NCCER ELECTRICAL TEST 140 Questions and Correct Answers.

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NCCER ELECTRICAL TEST 140 Questions and Correct Answers.

Institution
NCCER
Course
NCCER

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NCCER ELECTRICAL TEST 140 Questions and Cor z1 z1 z1 z1 z1 z1




rect Answers z1




The NEC recommends maintaining voltage within a 3% drop. If a branch circuit operates at 240 volts AC
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. What is the minimum circuit operating volt?
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232




What is the name of the connecting device shown in the diagram?
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Split-bolt




The volt amperes in an AC circuit is the same as
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Apparent power z1




What is the voltage drop for a #8 (16.510 cmil) copper wire at 120v. 215 feet one way and a load of 39a
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mps?

10.5




If a voltage source of a circuit provides 240 volts and there are 5 ohms of resistance, how much current
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is in the circuit?
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48 amps z1




We have an expert-written solution to this problem!
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What should be done to change rotation of a 3 phase motor?
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Swap any 2 T leads z1 z1 z1 z1

,What instrument is used to measure current?
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Ammeter




Which plan indicates the location of structures and equipment on a property?
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Site




Generally , the most ideal conductor is made of:
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Copper




What is the standard size system used in the united states?
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AWG




What is insulating tape?
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Non-Conductive adhesive tape z1 z1




Which of these is used as a guide to assist cables entering a conduit?
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Piston




Which of the following is not a reason why electrical systems must be grounded?
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Limit the potential between ungrounded conductors
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What type of conduit body is characterized by a threaded straight hub on each end?
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C

, A megger will be used to check an in-service cable. The Electrician MUST be sure that the circuit is:
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De-energized and locked tagged out, and tested z1 z1 z1 z1 z1 z1




Rubber gloves MUST be electrically tested at MAXIMUM intervals of:
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6 months
z1




A dangerously high voltage is produced when someone opens the secondary circuit of a:
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Current transformer z1




Which choice best describes the two types of pushbutton operators typically used in motor controls
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Open and closedz1 z1




In the event of an emergency where the lockout/
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tagout device is left secured, who can remove the lockout/tagout device?
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Authorized supervisor z1




A drawing showing a point A to point B hookup of conductors is called a:
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Wiring diagram z1




A NEMA type___ enclosure is both watertight and corrosion- resistant.
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4X




What's the MAIN characteristic of a confined space?
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