Blueprints Lesson 6

Select the three main reasons for the use of symbology on prints.

I. Able to be used across different languages

II. Saves space on drawings

III. Simplifies production

IV. Simplifies notation

V. Standardizes notation

a.I., III., V.

b.II., III.,V.

c.II., IV., V.

d.III., IV.,V.

A symbol is defined as a graphic representation of a device or object

Select one:

True

False

In trying to read a new or unknown symbol, the Electrical Worker may look in a book of

standards or in the drawing ? .

a.legend

b.elevation sheet

c.specifications

d.title block

What organization is responsible for the standardization of all symbols in the United

States?

a.ANSI

b.AIA

c.ISO

d.NFPA

If a Computer Aided Design (CAD) system symbol library is not available to the architect,

symbols may be drawn using a(n) ? .

a.compass

b.straight edge

c.protractor

d.template

All symbols do not necessarily conform to a standard. If one encounters a symbol that is

not on the standard list, one might find it in the legend or in the ?

a.elevation sheet

b.specifications

c.symbol library

d.title block

Symbols are pictorial and always look like the object they represent.

Select one:

True

False

Symbols might contain pictures, letters, or numbers in any combination.

Select one:

True

False

On the NJATC residential print (Franklin residence), choose three most commonly used

electrical symbols from the following list.

I. Ceiling fan

II. Lights

III. Motors

IV. Receptacles

V. Switches

a.I., II., III.

b.I., III., IV.

c.II., III., IV.

d.II., IV., V.

Electronic symbology is a specialized area of the electrical field. Match the common

electronic symbols to the proper description.

-possible answers-

Match the common electrical blueprint symbols to the proper description.

-possible answers-

Duplex receptacle

Four-way switch

Single pole switch

Duplex receptacle with Ground-Fault Circuit Interrupter Protection

Single receptacle

Match the common electrical blueprint symbols to the proper description.

-possible answers-

Range outlet

Fan hanger

Fluorescent fixture

Recessed incandescent fixture

Motor control and ladder logic symbology are also specialized symbols. Match the

specialized symbols listed to the proper description.

-possible answers-

Two-position single-throw switch

Solenoid

Normally open contacts

Time-delay switch

Motor control and ladder logic symbology are also specialized symbols. Match the

specialized symbols listed to the proper description.

-possible answers-

Motor starter coil

Coil

Indicator light

Control relay

Overload protection

Representation of devices might be accomplished pictorially and with symbology. ?

looks like the object, and ? just represents the object.

a.Pictorial / symbolic

b.Symbolic / pictorial

Drag the term to the blank line that best describes that part of the diagram.

How are the rungs of a ladder diagram numbered?

a.From left to right, bottom to top

b.From left to right, top to bottom

c.From right to left, bottom to top

d.From right to left, top to bottom

The two basic types of process control systems are open loop and closed loop.

Select one:

True

False

Match the following basic instrument function symbols to the proper description.

-possible answers-

Discrete instrument field mounted

PLC

Computer function

Discrete instrument

Instruments with common housing

Telecommunication distribution systems are being used more widely to control a variety

of ? , inputs, and outputs.

a.currents

b.power

c.resistances

d.voltages

Match the following telecommunications device symbols to the proper description.

-possible answers-

Ceiling drop pole

Wall outlet

Telephone panel

Floor outlet

Aerial cable or wire

Where should one look for information on the symbols for a totally new technology?

a.Drawing legends

b.Electrical manuals

c.Industry standards

d.Manufacturer's information

e.All of the above