NCCER Test Questions and Answers 100% Pass

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NCCER Test Questions and Answers 100% Pass A UL listed rod type ground electrode must have minimum length of ✔✔8'' in a circuit of pure capacitance, the current leads the voltage by ✔✔90 de... grees The standard unit for measuring the cross sectional area of wire is the ✔✔circular mil the drawing scale is most likely to be found in the ✔✔drawing title block what is the minimum number of overload sensing units required for all three phase motors ✔✔3 what is the resultant distance between center bends for a 10-inch offset at 15 degrees ✔✔38.7 inches What is the symbol for the secondary side of a transformer ✔✔x Most common transformer on an industrial site ✔✔single phase step down applications for heat tracing systems with self regulating control include those requiring a narrow operating range and ✔✔temperature sensitive fluids with a row of 3-4'', 3-2'' and 1-1'' conduits on each side for a straight pullbox what is the minimum distance between the opposite side walls of the box ✔✔32'' As the mechanical load increases on a squirrel cage induction motor ✔✔torque decreases and stator current increases when installing cables smaller the 4/0 in cable tray, the allowable cable fill area must not be less than the sum of the cable ✔✔cross sectional areas Meter used to measure pulling tension ✔✔dynamometer on a push button, normally closed contacts are generally used to open a circuit to ✔✔initiate a stop or off circuit function which of the following is the classified location where combustible dust may be present ✔✔class i, division i which of the following is the classified location where combustible fibers are always present ✔✔Class 3, division ? Minimum space between 2 ground rods ✔✔6ft how does a battery produce voltage ✔✔electromagnetisim as the load decreases on a squirrel cage induction motor, its power factor ✔✔increases what size wire is needed for a 120v circuit 215 feet long one way with a load of 39amps ✔✔#6 which of the following conductors has the least resistance ✔✔1/0 what is the primary consideration for selecting a rope for a cable pull ✔✔low stretch what is the minimum distance between raceway entries allowed in a pull box for angle pulls ✔✔6x's the largest trade size raceway 45degree offset multiplier ✔✔1.41 all of the following are common service voltages in the US except ✔✔372/575 three phase, four wire Insulation resistance tester ✔✔megohmeter insulation color for barrel crimp connectors for wire sizes 22-16AWG are ✔✔red when terminating fire alarm, instrumentation or control cables that contain a shielding drain wire, the drain wire must be ✔✔insulated to build an offset in a cable tray, use four ✔✔swivel plates a conductor with 220 mils of insulation would have insulation thickness of ✔✔.22'' which one of the fuses is a standard size according the NEC ✔✔3 A 1000KVA three phase transformer has a secondary voltage of 208/120, what is the secondary full load amperage ✔✔4817 Protective device for limiting voltage spikes by discharging or bypassing surge current is ✔✔surge limiter True 1 power is measured in ✔✔watts when stepping down voltages from 480 to 120/208 Y, the xo terminal of the transformer must be ✔✔taped what is type USE cable primarily used for ✔✔direct burial in earth 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 A lighting outlet symbol in the shape of a circle indicates a ✔✔incandescent fixture material between the capacitor plates in which an electric field appears is the ✔✔dielectric conductor with highest temperature rating ✔✔THHW [Show More]

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