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According to the NEC , where a panelboard is supplied through a transformer, the overcurrent protection required by 408.36 shall be located on the ____ side of the transformer.


A) top
B) bottom
C) primary
D) secondary

E) A) and B)
F) A) and C)

Correct Answer

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A drip loop's lowest point has a minimum vertical clearance of ____.


A) 9 ft (2.7 m)
B) 10 ft (3.0 m)
C) 11 ft (3.3 m)
D) 12 ft (3.7 m)

E) B) and C)
F) A) and C)

Correct Answer

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verified

Where the ungrounded supply conductors are larger than 1100 kcmil copper or 1750 kcmil aluminum, the supply-side bonding jumper shall have an area not less than ____ of the area of the largest ungrounded supply conductor or equivalent area for parallel supply conductors.


A) 10½%
B) 12½%
C) 15½%
D) 18½%

E) B) and C)
F) A) and C)

Correct Answer

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verified

Service equipment in other than dwelling units shall be legibly marked in the field with the ____.


A) average impedance
B) minimum current
C) maximum available fault current
D) maximum average current

E) C) and D)
F) A) and B)

Correct Answer

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verified

No secondary overcurrent protection is required for certain transformers 1000 volts, nominal, or less with currents of at least 9 amperes and a maximum primary overcurrent protection of ____.


A) 75%
B) 100%
C) 125%
D) 150%

E) B) and C)
F) C) and D)

Correct Answer

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verified

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