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electrical installations: intro to industrial wiring > lesson 4: drawings and specifications > Flashcards

lesson 4: drawings and specifications Flashcards

1
Q

identify this switch symbol:
SWCB

A

weatherproof circuit breaker

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2
Q

what are 10 things that are included on a title block

A
  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
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3
Q

thick broken lines are used to indicate wiring that is ___

A

concealed in floors or walls

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4
Q

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

A

red line

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5
Q

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

A

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

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

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6
Q

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

A

heavy double-dot-and-dash

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7
Q

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

A

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

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8
Q

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

A

True

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9
Q

identify this switch symbol:
SWP

A

weatherproof switch

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10
Q

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

A

wireway

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11
Q

identify this switch symbol:
S4

A

four way switch

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12
Q

identify this switch symbol:
SD

A

automatic door switch

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13
Q

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

A

As- built

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14
Q

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

A

True

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15
Q

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

A

convenience outlet

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16
Q

what are the 9 line types on a drawing

A
  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
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17
Q

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

A
  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
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18
Q

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

A

detail drawing

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19
Q

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

A

ceiling pull switch

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20
Q

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

A

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

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21
Q

identify this switch symbol:
SK

A

key operated switch

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22
Q

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

A

elevation view

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23
Q

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

A

True

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24
Q

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

A

24”x36”

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25
Q

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

A

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.

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26
Q

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

A

power panelboard

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27
Q

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

A

10%

28
Q

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

A

switch and single receptacle

29
Q

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

A

True

30
Q

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

A

CAD ( computer aided drawing)

31
Q

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

A

title block

32
Q

identify this switch symbol:
S2

A

double pole switch

33
Q

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

A

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

34
Q

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

A

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.

35
Q

identify this switch symbol:
SCB

A

Circuit breaker

36
Q

identify this switch symbol:
ST

A

time switch

37
Q

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

A

object line

38
Q

identify this switch symbol:
S

A

single pole switch

39
Q

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

A

change order

40
Q

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

A

leader line

41
Q

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

A

guy

42
Q

identify this switch symbol:
SRC

A

remote control

43
Q

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

A

True

44
Q

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

A

True

45
Q

this non profit organization provides standardized specifications for building construction

A

CSI- construction specifications institute

46
Q

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

A

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

47
Q

identify this switch symbol:
SWF

A

weatherproof fused switch

48
Q

T or F
ladder diagrams are also known as line diagrams

A

True

49
Q

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

A

cloud

50
Q

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

A

panel board

51
Q

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

A

True

52
Q

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

A

False
“B” is used to indicate architectural drawings

53
Q

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

A

drawing note

54
Q

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

A

True

55
Q

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

A

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

56
Q

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

A

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

57
Q

identify this switch symbol:
SDM

A

dimmer

58
Q

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

A

4’-0”

59
Q

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

A

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

60
Q

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

A

receptacle

61
Q

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

A

True

62
Q

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

A

AE Firm

63
Q

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

A

break line

64
Q

identify this switch symbol:
SF

A

fused switch

65
Q

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

A

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

66
Q

identify this switch symbol:
S3

A

three way switch

electrical installations: intro to industrial wiring (4 decks)

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