The electrical NCCER test | 289 Questions With Complete Answers.

Which Article of the NEC covers grounding? - article 250 Which of the following is a 90 degree, explosion proof fitting? - GUAL What is a dropout plate? -Metal plate with a curved 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-watt lamp. What is the total connected load? - 13.3 amps The must be grounded in a bussed gutter if used as the main service equipment. - 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 liguid-tight flexible metal conduit is used for - A moisture sealA good electrical connection should - Be mechanically and electrically secure