Journeyman Electrician Exam| 50 questions and answers

Journeyman Electrician Exam| 50 questions and answers An electromagnet can be switched on and off - And advantage of an electromagnet over a permanent magnet is Scatters light uniformly in all directions - An excellent diffuser surface is one that In a photovoltaic cell - Light is converted into electricity Armature - The rotating part of a DC motor is known as Fish tape - A device used to pull wires through a conduit is called Approximately zero - In making a resistance test, remember that the resistance of a short circuit is Parallel - To increase current capacity, battery cells are connected in 10 - The hot resistance of an incandescent lamp is approximately how many times it's cold resistance Start measuring at the highest range - The proper way of measuring and unknown voltage with a multi-tester is to A charge - A capacitor stores what? Paper - What has the lowest dielectric strength Knife - A form of air switch in which the moving element is a hinged blade wedge between stationary contact blades when closed is a what switch The contact resistance between the bare wire in the person at the point of contact - If a bare live conductor is touched accidentally, the severity of the electric shock is determined primarily by The same as - The voltage per turn of the primary of a transformer is ________the voltage per turn of the secondary Infinite - And open resister when checked with an ohmmeter reads Lesser - The larger the diameter of a wire, the _____is it's resistance? Above - Service heads and goosenecks in service entrance cable shall be what point of attachment of the service drops to the building? Moisture resistant and thermoplastic - Type TW conductor is what type? Low permeability - Steel is hard to magnetize because of its Commutator - A repulsion motor is equipped with a increase - When the temperature of a copper wire is raised, the resistance will Starting - The capacitor in a capacitor-start induction-run AC motor is connected in series with what winding? Cover - Defined as the shortest distance measured between a point on the top surface of any direct buried conductor, cable, conduit and a top surface of finish grade A battery - An ohmmeter consists of a meter movement in series with what? Oil and soap - Greece is a lubricant that is basically a combination of what? Open - The continuity of a coil of winding may be determined by measuring the resistance of the coil. If the resistance measured is infinite, the coil winding is what? SPDT - A three-way switch is equivalent to what kind of switch? It makes the operation of each appliance independent with each other - The main reason that electrical appliances are connected in parallel rather than series is? Voltage - A ste