NOCTI Electrical Questions and Answers Already Passed

NOCTI Electrical Questions and Answers Already Passed In general a beginning tradesperson with little or no experience in the electrical field is known as a/an apprentice The proper angle for setting up a ladder is to place its base a/an___________ of the working length of the ladder from the wall or other vertical surface. quarter A __________ fire extinguisher should be used on an electrical fire. Class C A person with a serious electrical injury should be moved only if they are in immediate danger When measuring an electrical circuit, current is measured in amps When referring to NM-B 12/3 wire, the number 12 refers to the wire gage The National Electrical Code (NEC) is based on NFPA codes According to the NEC, a continuous load is where the maximum current is expected to continue for _______ or more. 3 hours In residential structures, GFCI is required in kitchens The National Electrical Code (NEC) term, "accessible," means that an electrical box can be removed without damage to the building If the lighting requirement is 3 volt-amps per square foot and a home is 40 feet by 90 feet, the required volt-amps for lighting would be 10,800 volt -amps On a blueprint scale of 1/8 inch = 1 foot, a 3 1/2 inch length represents 28 feet If the voltage source supplies 260 volts and the resistance measure 5 ohms, the current is 52 amps In an AC circuit, if resistance remains the same and voltage is doubled, then current is doubled If the peak value of a given AC waveform is 2 volts, the RMS is 1.414 volts The frequency of an AC waveform is 40 hertz. What is the period of each cycle? 25.0 mS The outer most ring of an atom is called the _______ ring valance How many watts are dissipated by an electric heater that has unity power factor and draws 7.8 amps on a 240-volt line 1872 watts Bored holes through wood members must be kept a minimum of ___________ from the nearest edge of the wood member 1 1/4 inches What color wire can be used a s a hot wire if it is marked with three black stripes on each end? white The NEC states that a non-metallic sheathed cable with no cable clamps be secured by staples or straps within _________ from every cabinet, box or fitting. 8 inches Flexible metal conduit should be supported within ________ from an outlet or junction box. 12 inches The min amount of wire that must be left in a wokbox is 6 inches In which direction should solar panels in the United be facing? South The transformer winding to which the line is connected is called the ________________ winding primary The correct input power of an 87 percent efficient transformer with a power output of 60 volt-amps is 69 volt amps A motor is a dynamo that is used to change electrical energy into mechanical energy When calculating the efficiency of an AC motor, one needs to know the power factor, voltage, current and horsepower A motor's _____________ determines what proportion of the total electrical power is active power and what proportion is reactive power power factor