IEC YEAR 4 FINAL EXAM NEWEST 2024 -2025 ACTUAL

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IEC YEAR 4 FINAL EXAM NEWEST 2024 -2025 ACTUAL

EXAM COMPLETE 350 QUESTIONS AND CORRECT

DETAILED ANSWERS (VERIFIED ANSWERS)

|ALREADY GRADED A+

No receptacle shall ever be permitted to be installed within ___ feet of the inside walls of a pool.

Select one:

• 20
• 18
• 6
• 15 - ANSWER- c. 6

No luminaires shall be installed in swimming pools for operation on supply circuits over ___ volts between conductors.

Select one:

• 150
• 30
• 300
• 50
• 130 - ANSWER- a. 150
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A branch circuit is supplying a single hermetic refrigerant motor- compressor for an air conditioning unit. The hermetic refrigerant motor- compressor rated-load current is 18 amperes. If a 30-ampere fuse will not start the motor-compressor, the maximum rating of the branch- circuit short-circuit and ground-fault protective device may be increased to ___.

Select one:

• 45 amps
• 35 amps
• 50 amps
• 40 amps - ANSWER- d. 40 amps

Determine the minimum copper THHN conductor size required to connect a 15 KVAR, 480-volt, three-phase capacitor bank to a 50 hp, three-phase motor.

Select one:

• 10 AWG
• 14 AWG
• 12 AWG
• 8 AWG
• 6 AWG - ANSWER- a. 10 AWG

The wiring of an outdoor sign that is portable or mobile and is in a wet location shall be ___.

Select one: 2 / 4

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• protected by a 20-ampere overcurrent protective device
• provided with ground-fault circuit-interrupter protection for personnel
• provided with factory-installed ground-fault circuit-interrupter

protection for personnel

• none of the these - ANSWER- c. provided with factory-installed

ground-fault circuit-interrupter protection for personnel

The maximum number of 15-amp receptacles permitted on a freestanding office partition is ___.

Select one:

• 6
• 13
• 2
• 10 - ANSWER- b. 13

Conductors that supply one or more arc welders shall be protected by an overcurrent device rated or set at not more than ___% of the conductor ampacity.

Select one:

• 70
• 200
• 125
• 50
• 80 - ANSWER- b. 200
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For PV systems, conductor ampacities must be correct if installed in ambient temperatures exceeding ___°F.

Select one:

• 83
• 78
• 71
• 86 - ANSWER- d. 86

A disconnecting means shall be provided for all ungrounded conductors derived from a stationary battery system with a voltage over ___ volts dc.

Select one:

• 100
• 60
• 50
• 30 - ANSWER- b. 60

Automatic transfer switches (ATS) for emergency systems shall be electrically operated and ___ held.

Select one:

• mechanically
• manually
• automatically
• pneumatically
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