Journeyman Electricitian Exam 1 & 2 Questions With Verified Answers

_______ can be generated. I. Electricity II. Electrical Energy a. I only b. II only c. both I and II d. neither I nor II - Answer Ans. b A phenomenon where a circuit stores electrical energy is called ______. a. Inductance b. Capacitance c. Resistance d. Susceptance - Answer Ans. b A general term including material, fittings, devices, appliances, fixtures, apparatus, and the like used as part of, or in connection with, an electrical installation is ______. a. premises wiring (system) b. service equipment c. utilization equipment d. equipment - Answer Ans. d A switch intended for use in general distribution and branch circuits. It is rated in amperes, and it is capable of interrupting its rated current at its rated voltage, is a _______ switch. a. bypass isolation b. general use c. isolating d. transfer - Answer Ans. b The permanent joining of metallic parts to form an electrically conductive path that will ensure electrical continuity and the capacity to conduct safely any current likely to be imposed is known ______. a. ordinary tap joint b. scarf joint c. Britannia joint d. bonding - Answer Ans. d An instrument that is used to measure the diameter of a wire or cable to thousandths of an inch is _____. a. galvanometer b. micrometer c. hydrometer d. ruler - Answer Ans. b A ______ squirrel cage motor cab be started at full voltage. I. Design A II. Design B III. Design C IV. Design D a. I only b. I and II only c. III and IV only d. I, II, III, and IV - Answer Ans. d A _____ is a braking system for an electric motor. I. friction braking II. Plugging III. Dynamic braking a. I only b. III only c. I and III only d. I, II or III - Answer Ans. d Rigid metal conduit is permitted for wiring in hazardous locations if the conduit is threaded and made up wrench tight with at least _____ full threads. a. 4 b. 5 c. 7 d. 9 - Answer Ans. b A circuit breaker that has purposely introduced into it a delay in the tripping action and which delay decreases as the magnitude of the current increases is a ______ circuit breaker. a. Inverse time b. Adjustable c. Control vented d. Vented power - Answer Ans. a It is the intent of this Code that factory installed internal wiring or the construction of equipment need not be inspected at the time of installation of the equipment, except to ______. I. detect alterations II. Detect damage III. Detect insulation type a. I only b. II only c. I and II only d. I, II and III - Answer Ans. c A premises wiring system whose power is derived from a source such as a transformer that has no direct connection to the supply conductors originating in another system is a/an ______ system. a. Integrated b. Separately derived c. Interactive d. Isolated - Answer Ans. b Listed or labeled equipment shall be installed, used. Or both, in accordance with any instructions included _____. I. by the foreman II. In the listing or labeling III. With the equipment from the manufacturer a. I only b. II only c. II and III only d. I, II and III - Answer Ans. c Where conductors with an ampacity higher than the ampere rating or setting of the overcurrent device are used, the _____ shall determine the circuit rating. a. Conductor ampacity b. Overcurrent device c. Combined rating d. Derated ampacity - Answer Ans. b _____ are permitted to protect motor branch circuit conductors from overload. I. Thermal relays II. Inverse time circuit III. Time delay fuses a. I only b. II only c. II and III only d. I, II and III - Answer Ans. d The power factor of an incandescent light bulb would be _____. a. unity b. 0.7 leading c. 0.7 lagging d. zero - Answer Ans. a _____ is a pliable raceway. I. EMT II. ENT III. PVC a. I only b. II only c. I and III only d. I, II and III - Answer Ans. b Flexible cords and cables shall be protected by _____ where passing through holes in covers, outlet boxes, or similar enclosures. I. fittings II. Bushings III. Tie wraps a. I only b. II only c. II and III only d. I and II only - Answer Ans. d A transformer would most likely have a ______ efficiency. a. 60% b. 70% c. 80% d. 90% - Answer Ans. d When alternating current flows through a conductor, there is an inductive action that causes the current in the conductor to be forced toward the outer surface. The current is greater at the surface than at the center of the conductor, this _____ will cause the resistance in the conductor to increase de to the increased heating of the conductor. a. Capacitive effect b. Skin effect c. Conductive effect d. Outer effect - Answer Ans. b A value assigned to a circuit or system for the purpose of conveniently designating its voltage class is _____. a. Nominal voltage b. Voltage to ground c. Voltage (of a circuit) d. Voltage2 - Answer Ans. a A type of AC motor that runs at a constant speed and is used and is used for such purposes as an electric clock motor is a ____motor. a. AC squirrel cage b. AC induction c. Wound rotor induction d. Synchronous - Answer Ans. d _____ is the resistance at the point of contact of two conductors or one conductor and another surface. a. Conductor resistance b. Contact resistance c. Resistance per M/ft d. Resistance per K/ft - Answer Ans. b _____ is/are classified as a conduit body. I. LB fitting II. FS box III. LR fitting a. I and II only b. II only c. II and III only d. I and III only - Answer Ans. d ______ raceways are not suitable to enclose conductors that are subject to physical damage. a. Rigid metal conduit b. Intermediate metal conduit c. PVC schedule 40 d. PVC schedule 80 - Answer Ans. c A low power factor in an industrial plant is most likely caused by ______. a. Insufficient resistive loads b. Insufficient inductive loads c. Excessive resistive loads d. Lack of synchronous condenser - Answer Ans. a Where lighting outlets are installed in interior stairways, there shall be a wall switch at each floor level to control the lighting where the difference between floor levels is ______ steps or more. a. Two b. Four c. Six d. Eight - Answer Ans. c A voltage or current that is reversed at regular intervals is called _____ voltage or current. I. direct II. Steady state III. sinusoidal a. I only b. II only c. III only d. none of these - Answer Ans. c Of the following _____ is a false statement. a. The term kilowatt indicates the measure of power which is all available for work. b. The term kilovolt-amperes indicate the apparent power made up of an energy component. And a wattles or induction component. c. In an industrial plant, low power factor is usually due to underloaded induction motors. d. The power factor of a motor is much greater at partial loads than at full load. - Answer Ans. d It is generally not good practice to supply lights and motors from the same circuit because _______. a. Lamps for satisfactory service must operate within closer voltage limits than motors. b. Overloads and short circuits are more common on motor circuits. c. When motors are started, the large starting current causes a voltage drop on the circuit and the lights will blink or burn dim. d. all of these - Answer Ans. d In general, motors are designed to operate in a maximum ambient temperature of ______ unless specifically designed for a higher temperature. a. 60 degree C b. 50 degree C c. 45 degree C d. 40 degree C - Answer Ans. d A type of single phase motor that can be operated on either ac or dc is a ______motor. a. Multispeed b. Capacitor-start c. Universal d. Repulsion-induction - Answer Ans. c For screw shell devices with attached leads, the conductor attached to the screw shell shall be _____ in color. a. White or gray b. Orange c. Green d. Black - Answer Ans. a Branch circuit conductors shall have an ampacity not less than ______. a. The load increased 125% b. 100% of the load to be served c. 80% of the load to be served d. 125% of the continuous load plus 80% of the non continuous load - Answer Ans. b A switch intended for isolating an electric circuit from the source of power that has no interrupting rating, and it is intended to be operated only after the circuit has been opened by some other means is a/an ______. a. Isolating switch b. Bypass isolation switch c. General use switch d. Transfer switch - Answer Ans. a