Building Construction (Electrical Systems)
37 Questions
| Total Attempts: 84
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Questions and Answers
- 1.Form of energy generated by friction, induction or chemical change, having magnetic, chemical and radiant effect. The motion of free electrons through a solid conductor.
- 2.Combination of two or more electric cells capable of storing and supplying direct current.
- 3.Battery that delivers electricity as soon as its parts are assembled, provided that it is connected to a circuit.
- 4.Battery that has electricity from some external source must be passed through it before it can deliver an electric current.
- 5.Machine that converts mechanical energy into electrical energy.
- 6.AC
- 7.DC
- 8.Circular raceways used to enclose wires and cable and are of metal or plastic
- 9.Channels or wiring accessories used for holding wires, cables, bus bars.
- 10.Wiring device into which the utilization equipment cord is plugged into.
- 11.Device for making, breaking, or changing conditions in an electrical circuit under the conditions of load.
- 12.Coverings for switches and wall outlets made of metal or of phenolic compound.
- 13.Melts if there is any current that would be dangerous to the circuit.
- 14.Protective device designed to function as a switch
- 15.Box wherein the protective devices are housed from which the circuits and busbars terminate.
- 16.Auxiliary power station where electrical current is converted or where voltage is stepped up or down.
- A.
Service drop
- B.
Substation
- C.
Transformer vault
- D.
Line drop
- 17.Underground portion of service conductors extending from a main power line or transformer to a building.
- A.
Service lateral
- B.
Substation
- C.
Feeder
- D.
Service drop
- 18.Meter for measuring and recording the quantity of electric power consumed with respect to time
- A.
Service entrance conductor
- B.
Service
- C.
Watt-hour meter
- D.
Uninterruptible power supply
- 19.Pertaining to a circuit in which alternating current below 50 volts is supplied by a step-down transformer from the normal line voltage used in residential systems. do not require a protective raceway.
- A.
Low-voltage
- B.
Distribution panel
- C.
High-voltage
- D.
Mid-voltage
- 20.Branch circuit that supplies current in a number of outlets for lighting and appliances.
- 21.Branch supplies current in one or more outlets specifically intended for appliances.
- 22.Branch circuit that supplies current only to a single piece of electrical equipment.
- 23.Metal that is most preferred in all conductor types
- 24.Smallest wire permitted.
- A.
21
- B.
11
- C.
14
- D.
13
- 25.Large conductors which are not circular in cross section and are usually found only to supply the main switch boards.
- A.
Wires
- B.
Bus bars
- C.
Cables
- D.
Stranded wire
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