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2nd Year Stuff > Pattern/layout/math > Flashcards

Pattern/layout/math Flashcards

1
Q

BC stands for

A

Bolt center or bolt circle

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2
Q

BCD stands for

A

Bolt circle diameter

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3
Q

BDC stands for

A

Bottom dead center

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4
Q

Bl stands for

A

Bend line with a note to bend up or down

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5
Q

C to C stands for

A

Center to center

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6
Q

Cl or l overwritten the c stands for

A

Centerline

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7
Q

C/W STANDS FOR

A

Complete or comes with

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8
Q

Cir stands for

A

Circumference

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9
Q

ID STANDS FOR

A

Inside diameter

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10
Q

In.S. stands for

A

Inside

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11
Q

LH stands for

A

Left hand

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12
Q

O/C stands for

A

On center

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13
Q

OD stands for

A

Outside diameter

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14
Q

O.S. stands for

A

Outside

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15
Q
A

Plate

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16
Q

R or Rad stands for

A

Radius

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17
Q

Sq. Stands for

A

Square

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18
Q

TDC stands for

A

Top dead center

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19
Q

This is a ? Used for

A

Bevel protractor get angles from 0 to 180 deg

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20
Q

Nominal pipe size = to OD on pipe sizes

A

14” and up

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21
Q

A metric reduced scale of 1:50 is

A

Actual object is 50x bigger

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22
Q

Imperial scale of 1/4 (actual size 6’) .what is the drawing size?

A

1.5 ‘

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23
Q

This is an example of

A

Conventional dimensioning

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24
Q

This is an example of

A

Baseline dimensioning

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25
Q

This is an example of

A

Running dimensions

26
Q
A
27
Q

Define chord

A

A straight line, not through the center of a circle touching the circumference at both ends

28
Q

Def bisect

A

Divide into 2 equal parts

29
Q

Oblique and Oblique parallel lines def

A

Lines not horizontal or vertical

30
Q

What type of pictorial drawing shows objects as they appear to the eye

A

Perspective

31
Q

Which type of drawing uses one orthography view with parallel lines receding off that view

A

Oblique

32
Q

Pitch is the ratio between rise and run. What dimension are they

A

Rise: vertical
Run: horizontal

33
Q

Visual characteristics of hot rolled flat bar

A

Slightly rounded corners and grey millscale finish

34
Q

Cold rolled steel visual characteristics

A

Sharp corners and often clean scale free finish

35
Q

Arc length formula ? (On a circle)

A
36
Q

Find the arc length

A
37
Q

What is the pythagorean theorum

A

C2 = A2 + B2

38
Q

If the pitch of a roof is 4:12, and the run is 18’ what is the run

A
39
Q
A
40
Q

Multiply 1/2 × 2/5

A

2/10

41
Q

1/2 ÷ 1/6

A

1/2 × 6/1 =6/2 =3

42
Q

What is the area formula

A
43
Q
A
44
Q

Convert 22.456’ to feet + inches with denominator of 1/16

A

22’ 5 1/2”

45
Q

Convert 19.123 feet to feet + inches with a denominator of 1/16

A

19’ 1 1/2”

46
Q

Convert 1.57to %

A

157%

47
Q

Convert 148% to decimal

A

1.48

48
Q

Convert .883 to fraction

A

883/1000

49
Q

Convert 123% to fraction

A

123/100

50
Q

Circle circumference formula

A

C=pi×d or
C=2×pi×r

51
Q

Area of a circle

A

Pi ×r squared

52
Q

Standard and schedule 40 have the same wall thickness upto :

A

10”

53
Q

Extra strong and schedule 80 pipe have yhe same wall thickness upto:

A

8”

54
Q

Number of welds

A

3

55
Q

% elongation formula

A
56
Q

Cost formula?

A

W × w × t × l
W width
T thickness
L length

57
Q

Cost formula

A

Cd x lb/ft ×l
C =standard shape ( ie c6 or c150)
D = depth
Lb/ft
L = length

58
Q

Angle of 60 degree turn

A

Degrees of turn / # of welds
60/1

59
Q

Measure back

A

Od × tan angle of cut/2

60
Q

Degree of cut
Measure back
End peice
Center peice formulas

A
61
Q

Major and minor axis

A

2nd Year Stuff (4 decks)

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