Deck 2: Reading Electrical Working Drawings- Entry Level

Question 1

One type of illumination system consists of rows of strip fluorescents and a ceiling that will transmit light.For this system to be efficient, the surfaces above the luminous ceiling must be .

A)installed by the electrician
B)metallic
C)black
D)highly reflective (white)

Answer 1

D

Question 2

What advantages does a low­voltage remote­control system offer, and why isn't it more popular?

Answer 2

The low-voltage remote-control system offers control flexibility that is not available in the traditional control system.The switches used in this system operate on 24 volts, and the power wiring, at 120 volts, goes directly to the electrical load.This reduces branch-circuit length and voltage drop.A switching schedule gives details on the system operation, and a wiring diagram provides valuable information to the installer.One of the reasons for the low popularity of this system is the scarcity of electricians who are prepared to install a low-voltage control system.

Question 3

The term means not connected to ground or a conductive body that extends the ground connection.

A)neutral conductor
B)ungrounded
C)neutral point
D)white conductor

Answer 3

B

Question 4

The switches used in the low-voltage remote-control system operate on volts.

A)12
B)24
C)60
D)120

Question 5

The symbol for consist of two parallel lines inside, and sometimes extending out of, a circle.

A)pressure switches
B)float switches
C)duplex convenience receptacles
D)lighting outlets

Question 6

The typical outlet notation "H" designates a outlet.

A)hollow
B)high mounted
C)hung
D)horizontally mounted

Question 7

When raceways are installed vertically in the building, from one floor to another, the vertical direction may be represented by the arrow symbol inside a(n) .

A)triangle
B)square
C)circle
D)oval

Question 8

If the raceway is for use of the system, the line will be broken and an uppercase T will be inserted.

A)transportation
B)telephone
C)tunnel
D)timing

Question 9

How are hash marks useful in marking raceways?

Question 10

Describe the placement of electrical equipment in electrical plans.

Question 11

What are panelboards? Describe the major types.

Question 12

A rectangle with parallel diagonal lines as the fill pattern represents a .

A)switch
B)lighting outlet
C)receptacle outlet
D)distribution panel

Question 13

schedules are typically provided to detail the circuits and overcurrent protection required for distribution equipment.

A)Branch-circuit
B)Outlet
C)Switch
D)Panelboard

Question 14

are not usually permitted on the hinged side of the door but are required to be located on the strike side.

A)Outlets
B)Switches
C)Circuits
D)Floats

Question 15

are distribution points for electrical circuits.

A)Panelboards
B)Receptacle outlets
C)Surface raceways
D)Lighting outlets

Question 16

When concealed raceways are drawn on plans, they usually are shown as .

A)curved lines
B)straight lines
C)circles
D)right angles

Question 17

If more than one symbol is located immediately adjacent to another, it usually means that a multigang box for multiple wiring devices and are to be installed.

A)multiple covers
B)two covers
C)duplicate covers
D)a single cover

Question 18

A dashed line with an "S" designates a(n) .

A)underfloor signal raceway
B)sturdy raceway system
C)solid raceway
D)signal raceway

Question 19

A switch symbol without a number beneath the horizontal line means that a switch should be installed.

A)single-pole
B)float
C)three-way
D)four-way

Question 20

How are location and types of luminaires often identified in drawings and specifications?