IEC YEAR 1 FINAL EXAM NEWEST 2024-2025 ACTUAL EXAM COMPLE
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWE
Study online at https://quizlet.com/_ftdzzw
1. What is the result if the neutral wire becomes open on The load of
a multiwire circuit having unequal loads? higher resistance
would overheat
Select one: and probably be
damaged.
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.
2. Refer to Figure 128.202. ___ volts are applied across 240
the water heater element.
Select one:
a.
120
b.
240
c.
0
d.
480
3. Circuits 7 and 9 share a neutral. This is a multiwire 3
branch circuit. If Ckt. 7 is drawing 13 amps and Ckt.
9 is drawing 16 amps, how much current is flowing in
the neutral?
, IEC YEAR 1 FINAL EXAM NEWEST 2024-2025 ACTUAL EXAM COMPLE
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWE
Study online at https://quizlet.com/_ftdzzw
Select one:
a.
3
b.
13
c.
29
d.
16
4. The Code reference that specifies the type of dis- 240.15(B)(1)
connecting 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
5. Voltmeters are connected in ___ with the load when Parallel
used to measure voltage across a load in a circuit.
, IEC YEAR 1 FINAL EXAM NEWEST 2024-2025 ACTUAL EXAM COMPLE
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWE
Study online at https://quizlet.com/_ftdzzw
Select one:
a.
parallel
b.
series
6. The neutral has been broken in the circuit shown in 1
Figure 128.418. The current through Lamp F (IF) with
the neutral opened is ___ amps.
Select one:
a.
6
b.
1
c.
2
d.
8
e.
3
7. Refer to Figure 128.523. Each battery puts out 12 volts. 24
The voltage applied to the load is ___ volts.
Select one:
a.
48
b.
0
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