Building Construction (Electrical Systems)

37 Questions | By Nefertarylight55 | Last updated: Mar 21, 2022 | Total Attempts: 233

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1.

Give the (3) classifications of switches according to intensity of use.
2.

Give the (3) types of floor raceways recognized by the NEC.
3.

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.
4.

Combination of two or more electric cells capable of storing and supplying direct current.
5.

Battery that delivers electricity as soon as its parts are assembled, provided that it is connected to a circuit.
6.

Battery that has electricity from some external source must be passed through it before it can deliver an electric current.
7.

Machine that converts mechanical energy into electrical energy.
8.

AC
9.

DC
10.

Circular raceways used to enclose wires and cable and are of metal or plastic
11.

Channels or wiring accessories used for holding wires, cables, bus bars.
12.

Wiring device into which the utilization equipment cord is plugged into.
13.

Device for making, breaking, or changing conditions in an electrical circuit under the conditions of load.
14.

Coverings for switches and wall outlets made of metal or of phenolic compound.
15.

Melts if there is any current that would be dangerous to the circuit.
16.

Protective device designed to function as a switch
17.

Box wherein the protective devices are housed from which the circuits and busbars terminate.
18.

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
19.

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
20.

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
21.

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
22.

Branch circuit that supplies current in a number of outlets for lighting and appliances.
23.

Branch supplies current in one or more outlets specifically intended for appliances.
24.

Branch circuit that supplies current only to a single piece of electrical equipment.
25.

Metal that is most preferred in all conductor types