Deck 9: Dimensioning Conventions and Surface Finishes

Question 1

Extension lines should always touch the drawing.

Answer 1

False

Question 2

Chords, arcs, and angles should all be dimensioned the same way.

Answer 2

False

Question 3

Fillets are inside rounded corners.

Answer 3

True

Question 4

When parts of a drawing align on a common radial centerline, _____ coordinate dimensions are used.

A) rectangular
B) polar
C) tabulated outline
D) circular

Question 5

Very small radii are dimensioned with the use of an apex.

Question 6

When rectangular coordinate dimensioning is used, the baseline is assigned a value of:

A) -1
B) 0
C) 1
D) 5

Question 7

What term refers to the total acceptable variation within a dimension?

A) tolerance
B) knurling
C) lay
D) chamfer

Question 8

The surface texture for manufacturing processes is specified on working drawings through:

A) finish symbols
B) lay symbols
C) chamfer notations
D) polar coordinates

Question 9

Dimensions should be spaced as closely as possible.

Question 10

Chamfers may be external, internal, or oblique.

Question 11

You should always dimension to hidden lines.

Question 12

A flat internal corner would be considered a:

A) fillet
B) round
C) chamfer
D) knurl

Question 13

When tabulated outline dimensioning is used, the X-Y distance of each plotting point on a contour line is tabulated on an X-Y coordinate chart.

Question 14

Unidirectional dimensions are read from the _____ of the drawing.

A) top
B) bottom
C) left
D) right

Question 15

Leaders can be used to connect a specific area of a drawing to a dimension or note.

Question 16

What term refers to the primary direction of the surface pattern made by machine tool marks?

A) knurling
B) tolerance
C) contact area
D) lay

Question 17

Which term refers to outside rounded corners?

A) chamfers
B) fillets
C) knurling
D) rounds

Question 18

U.S. customary dimensioning is based on _____ values.

A) decimal-inch
B) fraction-inch
C) decimal-millimeter
D) fraction-millimeter

Question 19

The two types of working drawing dimensions include _____ dimensions.

A) mass and depth
B) size and shape
C) size and location
D) location and mass

Question 20

When dimensioning angles, you should extend curved extension lines and connect them with straight dimension lines.

Question 21

Imagine that you need to record a dimension value of nine and one-half millimeters. What is the correct way to record this dimension according to ASME standards?

A) 9-1/2 mm
B) 9.5 mm
C) 9.5
D) 9.50

Question 22

Imagine that you need to record a dimension value of one-half millimeter. What is the correct way to record this value according to ASME standards?

A) .5 mm
B) 0.5
C) 0.50
D) 0.50 mm

Question 23

The symbol _____ may be used to indicate a nondirectional lay.

A) P
B) C
C) R
D) M

Question 24

Which symbol is used to indicate the the lay is angular in both directions to the line representing the surface to which the symbol is applied?

A) =
B) z
C) M
D) X

Question 25

Imagine that you need to record a dimension value of one thousand millimeters. What is the correct way to record this value according to ASME standards?

A) 1,000
B) 1,000.00
C) 1000
D) 1000.00

Question 26

What symbol should you use to indicate that the lay is perpendicular to the line representing the surface to which the symbol is applied?

A) =
B) z
C) M
D) X

Question 27

Which statement about pictorial drawings is correct?

A) They are commonly used as working drawings.
B) They are usually used without additional dimensioned drawings.
C) They are usually accompanied by a fully dimensioned multiview drawing.
D) They are usually accompanied by a fully dimensioned single-view drawing.

Question 28

What is a danger of producing surfaces that are too rough?

A) increased production time
B) increased production cost
C) decreased production quantity
D) production of an inferior-quality product

Question 29

Chords are dimensioned with:

A) numbers and a straight line
B) numbers and a curved line
C) letters and a straight line
D) letters and a curved line

Question 30

Imagine that you need to record a dimension value of three-quarters of an inch or 19 millimeters. What is the correct way to record this dimension according to ASME standards for U.S. customary dimensioning?

A) 3/4
B) .75
C) 0.75
D) 19