NCCER Test questions well answered rated A+ 2023/2024

NCCER Test 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 degrees 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