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ELECTRICIAN NCCER QUESTIONS AND ANSWERS ALREADY PASSED 2024 (SPRING)
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ELECTRICIAN NCCER QUESTIONS AND ANSWERS ALREADY PASSED 2024 (SPRING)
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Which article of the NEC covers grounding? ✔✔Article 250 What is a dropout plate? ✔✔Metal plate with a curve surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States Except: ✔✔372/575 3- Phase, 4-wire What does a GFCI breaker do? ✔✔Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are grounded? ✔✔The motor will automatically blow fuses eight incandescent lighting fixtures are to be installed. Each fixture is 120 volts, with a 200 -whatt lamp what is the total connected load? ✔✔13.3 Amps Electrician NCCER Questions and Answers Already Passed The must be grounded in a bussed glutter if use as the main service equipmemt ✔✔Neutral busbar When wall mounting cable tray, ensure that ✔✔The building structure is strong enough to support the tray system The purpose of sealing cable ends when reels of cable are in storage is ✔✔to keep moisture from creeping in The outer covering on liquid -tight flexible metal conduit is use for ✔✔A moisture seal A good electrical connection should ✔✔Be mechanically and electrically secure The symbol normally use for duplex ✔✔Circle with two parallel lines draw through it Disconnecting means are covered in ✔✔NEC section 110-22 In relation to switches, the term throw refers to the ✔✔Number of internal operations that switch can perform A 3-phase, 4-wire, 480v service requires _ current transformers ✔✔3 Services conductors and equipment are covered in ✔✔NEC Article 230 The NEC required that all receptacles installed on 25 amp and 20 amp branch circuits be receptacles ✔✔Grounding The circular mil is based on the ✔✔Cross -sectional area of the wire A transformer with the primary of 400 turns and a secondary of 300 turns has a ✔✔Step down turns ratio of 4:3 Of the termination classes listed below, is the only one that provides a seal against external elements ✔✔Class 1 Unless otherwise noted, the calculations in AC circuits values ✔✔Rms When the coil turns increased the ✔✔Induced voltage is increased As the temperature surrounding a self regulating heating cable rises, the ✔✔Resistance of the polymeric core increases The motor type that has the highest starting torque is the motor ✔✔Capacitor - start For a given number of poles, the determines the speed of an AC Motor. ✔✔Frequency Both induction and synchronous motor operate on the principle of the rotating field ✔✔Magnetic A Transformer has 200 turns in the primary, 150 turns in the secondary, and 120VAC applied to the primary. The voltage across the secondary is ✔✔90 Volts The output capacity of a motor is rated in ✔✔HorsepowerThe benefits of buying summaries with Stuvia:
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