lesson 4: drawings and specifications

Question 1

identify this switch symbol:
SWCB

Answer 1

weatherproof circuit breaker

Question 2

what are 10 things that are included on a title block

Answer 2

1. architects name and location
2. architects seal
3. drafters initials
4. name of sheet
5. number of sheets
6. plan completion date
7. project location
8. project name
9. scale
10. sheet number

Question 3

thick broken lines are used to indicate wiring that is ___

Answer 3

concealed in floors or walls

Question 4

what type of drawing is marked up during the construction process to accurately reflect changes that occur during construction and that is used to prepare the final drawings

Answer 4

red line

Question 5

T or F
a limit switch is an example of a load

Answer 5

False
a limit switch is an example of a control system.

a circuit load example would be a lamp, motor, heater, etc

Question 6

what type of lines identifies the point at which an imaginary cut has been made in a section view

Answer 6

heavy double-dot-and-dash

Question 7

T or F
a wireway is a grounded metal enclosure that contains factory- mounted bare or insulated conductors

Answer 7

False
a wireway is a sheetmetal or non metallic enclosure with a cover that opens to provide access to conductors inside

Question 8

T or F
relays are shown in a normal state on a control circuit diagram

Answer 8

True

Question 9

identify this switch symbol:
SWP

Answer 9

weatherproof switch

Question 10

what is sheet metal or nonmetalic enclosure with a cover that opens to provide access to the conductors inside

Answer 10

wireway

Question 11

identify this switch symbol:
S4

Answer 11

four way switch

Question 12

identify this switch symbol:
SD

Answer 12

automatic door switch

Question 13

a final drawing prepared by an AE firm and turned over to the building owner at the conclusion of the project to accurately reflect the completed project, is called what

Answer 13

As- built

Question 14

T or F
a destination code system is the most commonly used numbering system

Answer 14

True

Question 15

this type of receptacle outlet is installed for general-purpose use

Answer 15

convenience outlet

Question 16

what are the 9 line types on a drawing

Answer 16

1. hidden line
2. object line
3. sectional line
4. break line (long and short)
5. leader line
6. cutting plane line
7. dimension line
8. center line
9. extension line

Question 17

what are the 6 main items included for a typical change order

Answer 17

1. management approval
2. bill of materials
3. reason for the change and its affect on the work
4. description of the change
5. components, systems, and devices affected by the change
6. accompanying drawings and other documentation

Question 18

what type of drawing is used to provide information not clearly shown in another part of the drawing

Answer 18

detail drawing

Question 19

identify this switch symbol:
S(with a circle around it)

Answer 19

ceiling pull switch

Question 20

T or F
a hidden line is used on a drawing to indicate an axis of symmetry

Answer 20

False
Hidden lines are dashed lines used to indicate an object or part of an object that is obscured.

Question 21

identify this switch symbol:
SK

Answer 21

key operated switch

Question 22

what type of view on a drawing shows the height and features of an object in relation to another point or plane

Answer 22

elevation view

Question 23

T or F
architects scales can be read right to left or left to right depending on the scale

Answer 23

True

Question 24

what is the most common size of working drawings (blueprints)

Answer 24

24”x36”

Question 25

T or F floor plans are often used to represent electrical distribution systems in commercial installations

Answer 25

False floor plans are plan views of a structure that shows the arrangement of the walls and partitions as they appear in an imaginary section taken horizontally at approx. 4' above floor level.

Question 26

what type of panelboard uses 10% or less of the installed overcurrent devices that supplies lighting and appliance branch circuits

Answer 26

power panelboard

Question 27

a lighting and appliance branch circuit panelboard is a panelboard in which more than ____% of the installed overcurrent devices are rated 15A, 20A, or 30A

Answer 27

10%

Question 28

identify this switch symbol: -Os (dash indicates that it goes into the O)

Answer 28

switch and single receptacle

Question 29

T or F different drawings are used for each type of electrical circuit

Answer 29

True

Question 30

the design, and drafting of a component, member, or structure using a computer is called what

Answer 30

CAD ( computer aided drawing)

Question 31

where are the drafters initials, the architects seal, the number of sheets in a set of prints, and the particular sheet number, and the scale be found on a blueprint

Answer 31

title block

Question 32

identify this switch symbol: S2

Answer 32

double pole switch

Question 33

the standard start-stop station control circuit contains a fuse, a stop pushbutton, a start pushbutton, and what else

Answer 33

magnetic motor coil (M), and an overload contact (OL)

Question 34

T or F to convey different information on an electrical drawing, lines are drawn with different colors

Answer 34

False reading electrical drawings includes understanding plot plans, elevation views, section views, detail drawings and so on. depending on the application, most drawings will have a legend that will explain what specific lines are assigned a specific symbol.

Question 35

identify this switch symbol: SCB

Answer 35

Circuit breaker

Question 36

identify this switch symbol: ST

Answer 36

time switch

Question 37

what type of blueprint line is thick and is used to define and provide detail about a particular shape or symbol

Answer 37

object line

Question 38

identify this switch symbol: S

Answer 38

single pole switch

Question 39

what kind of document us used to initiate and keep track of changes to the original work

Answer 39

change order

Question 40

this type of line is an inclined line on a drawing print that extends from a written note to the object that it refers to

Answer 40

leader line

Question 41

a rope, wire, or cable used to stabilize a vertical member is called what

Answer 41

guy

Question 42

identify this switch symbol: SRC

Answer 42

remote control

Question 43

T or F many symbols used on one-line diagrams are unique to a one-line drawing

Answer 43

True

Question 44

T or F typical information on a lighting plan can include conduit sizes

Answer 44

True

Question 45

this non profit organization provides standardized specifications for building construction

Answer 45

CSI- construction specifications institute

Question 46

T or F with a design/bid/build process, one firm provides facility design, drawings, specifications, and facility construction

Answer 46

False all is otherwise true except, the general contractor provides facility construction in the design/bid/build delivery method

Question 47

identify this switch symbol: SWF

Answer 47

weatherproof fused switch

Question 48

T or F ladder diagrams are also known as line diagrams

Answer 48

True

Question 49

on a drawing revision, the area affected by the revision may be represented by what shaped line on a drawing

Answer 49

cloud

Question 50

what is an electrical panel, or group of panels designed to form a single panel, that is contained in a cabinet or cutout box

Answer 50

panel board

Question 51

T or F many electrical drawings, such as wiring diagrams and one-line drawings, do not have a scale

Answer 51

True

Question 52

T or F the identification letter to designate architectural drawings is "A"

Answer 52

False "B" is used to indicate architectural drawings

Question 53

what is it called where you have a note on a drawing that contains information specific to the drawing on a particular page or sheet

Answer 53

drawing note

Question 54

T or F with a design/build process, one firm provides, drawings, design, specifications, and facility construction

Answer 54

True

Question 55

T or F electrical equipment does not have to be in proper working order when the owner accepts ownership of electrical equipment and systems

Answer 55

False as part of the start- up and testing phase that occurs near the completion phase of construction. this is necessary to ensure and verify that the system was installed correctly

Question 56

T or F the general contractor typically stores and maintains the original project drawings

Answer 56

False The AE firm typically maintains the original drawings, and copies are sent to the field office

Question 57

identify this switch symbol: SDM

Answer 57

dimmer

Question 58

a plane view drawing looks down at a building about how many feet/inches above the floor

Answer 58

4'-0"

Question 59

T or F ladder diagrams are read from right to left starting at the bottom of the diagram

Answer 59

False ladder diagrams are read from left to right and top to bottom

Question 60

this type of electrical device is used for easily and temporarily connecting electrical equipment to a power source

Answer 60

receptacle

Question 61

T or F the symbol for a single pole switch on a control circuit schematic diagram is different than for a single pole switch on an electrical floor plan

Answer 61

True

Question 62

who does the facility owner hire through a contract process to accomplish the building design

Answer 62

AE Firm

Question 63

what type of line is used on a drawing to show an object that is too long to be shown on a sheet or that does not require its full length to be shown

Answer 63

break line

Question 64

identify this switch symbol: SF

Answer 64

fused switch

Question 65

T or F a bar chart schedule uses vertical bars to indicate the progress of various tasks

Answer 65

False a bar chart uses horizontal bars are used to indicate progress of various tasks vertical lines on a bar chart indicate the beginning of a defined time period, such as a work week

Question 66

identify this switch symbol: S3

Answer 66

three way switch