Exam 4: Branch Circuits
Exam 1: Commercial Building Plans and Specifications20 Questions
Exam 2: Reading Electrical Working Drawings--Entry Level20 Questions
Exam 3: General Requirements for Conductors16 Questions
Exam 4: Branch Circuits20 Questions
Exam 5: Switches and Receptacles20 Questions
Exam 6: Wiring Methods20 Questions
Exam 7: Motor and Appliance Circuits20 Questions
Exam 8: Feeder Installation and Load Calculation22 Questions
Exam 9: Special Systems20 Questions
Exam 10: Working Drawings--Upper Level20 Questions
Exam 11: Special Circuits Owners Circuits20 Questions
Exam 12: Panelboard Selection and Installation20 Questions
Exam 13: The Electric Service and Grounding20 Questions
Exam 14: Lamps and Ballasts for Lighting20 Questions
Exam 15: Luminaires20 Questions
Exam 16: Emergency, Legally Required Standby, and Optional Standby Power Systems20 Questions
Exam 17: Overcurrent Protection: Fuses and Circuit Breakers20 Questions
Exam 18: Short-Circuit Calculations and Coordination of Overcurrent Protective Devices20 Questions
Exam 19: Equipment and Conductor Short-Circuit17 Questions
Exam 20: Low-Voltage Remote Control20 Questions
Exam 21: The Cooling System20 Questions
Exam 22: Commercial Utility-Interactive Photovoltaic Systems20 Questions
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A continuous load is one that is expected to operate for a period of ____ hours or more.
Free
(Multiple Choice)
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Correct Answer:
A
What type of branch circuit supplies two or more receptacles or outlets for lighting and appliances?
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(Multiple Choice)
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Correct Answer:
B
The receptacle outlet for servicing air conditioning equipment is required to be located on the same level as the HVAC equipment and within ____ feet of the equipment.
Free
(Multiple Choice)
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Correct Answer:
C
For conductors larger than 1 AWG or for overcurrent devices rated greater than 100 amperes, the default rating of terminals is ____ degrees C.
(Multiple Choice)
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A(n)____ can be used to control lighting loads so they operate only when a room is occupied.
(Multiple Choice)
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When sizing conductors and overcurrent protection, you must take 100 percent of the noncontinuous loads plus ____ percent of the continuous loads.
(Multiple Choice)
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During the process of laying out an electrical system, when are branch circuits assigned?
(Essay)
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What are the requirements for the disconnecting means on a sign outlet?
(Essay)
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In the panelboard worksheet used in this chapter, what does the quantity column represent?
(Essay)
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If the load is a water heater with capacity of 120 gallons (450 L)or less, the branch circuit is required to be included as a(n)____ load.
(Multiple Choice)
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When a branch circuit supplies an air conditioning system that consists of a hermetic motor-compressor and other loads, the circuit rating must not exceed ____ percent of the hermetic motor load plus the sum of the additional loads.
(Multiple Choice)
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What type of branch circuit is meant by a shared-neutral branch circuit?
(Multiple Choice)
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What type of branch circuit has two or more ungrounded conductors that have a voltage between them, and a grounded conductor that is connected to the neutral or grounded conductor of the system, with equal voltage between it and each ungrounded conductor of the circuit?
(Multiple Choice)
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The purpose of a(n)____ device is to protect the circuit wiring and devices and to some extent the equipment served by the circuit.
(Multiple Choice)
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The branch circuit begins at the final ____ and ends at the device or equipment being supplied.
(Multiple Choice)
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Multioutlet branch-circuit ratings are limited to 15-, 20-, 30-, 40-, and 50-ampere except on ____ premises, where they may have a higher rating.
(Multiple Choice)
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