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Iec year 1 final exam With Questions And Verified Answers 2024

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Iec year 1 final exam With Questions And Verified Answers 2024 What is the result if the neutral wire becomes open on a multiwire circuit having unequal loads? Select one: a. The load of higher resistance would overheat and probably be damaged. b...

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  • May 14, 2024
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Iec year 1 final exam
With Questions And
Verified Answers 2024

,What is the result if the neutral wire becomes open on a multiwire
circuit having unequal loads?

Select one:

a.
The load of higher resistance would overheat and probably be
damaged.

b.
The load of lesser resistance would overheat and probably be
damaged.

c.
No effect until one load is turned off or opens.

d.
No effect. - ANSWER>>>>>The load of higher resistance would
overheat and probably be damaged.

Refer to Figure 128.202. ___ volts are applied across the water
heater element.
Select one:

a.

,120

b.
240

c.
0

d.
480 - ANSWER>>>>>240

Circuits 7 and 9 share a neutral. This is a multiwire branch circuit. If
Ckt. 7 is drawing 13 amps and Ckt. 9 is drawing 16 amps, how much
current is flowing in the neutral?

Select one:

a.
3

b.
13

c.
29

d.
16 - ANSWER>>>>>3

The Code reference that specifies the type of disconnecting means
(circuit breaker for example) that can be used on a multiwire branch

, circuit that feeds devices mounted on the same yoke [a stack switch
or a duplex receptacle for example] is ___.
Note: Select N/A (not applicable) if there is not an NEC®
requirement.

Select one:

a.
Article 100

b.
240.15(B)(1)

c.
404.8(A)

d.
N/A - ANSWER>>>>>240.15(B)(1)

Voltmeters are connected in ___ with the load when used to measure
voltage across a load in a circuit.

Select one:

a.
parallel

b.
series - ANSWER>>>>>Parallel

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