Ch. 3: Line Usage

Question 1

_________ are the standard for this system

Answer 1

Alphabet of lines

Question 2

A ____ line is twice the width of a thin line

Answer 2

thick

Question 3

_______ are critical to machinists during layout, machining, and inspection

Answer 3

centerlines

Question 4

_____ lines show center axis of a part where both sides are symmetrical

Answer 4

symmetry

Question 5

Dimension lines span distance between extension lines with ______ and ______

Answer 5

arrowheads, numerical value

Question 6

______ lines direct reader to notes, symbols, item/part numbers, or dimensions

Answer 6

leader

Question 7

_____ lines are thin lines made up of one long line followed by two short dashes

Answer 7

phantom

Question 8

_____ break lines indicate shortening of a long part with uniform shape

Answer 8

long

Question 9

____ break lines in sectional views provide clearer detail in viewing parts directly below removed part

Answer 9

short

Question 10

Stitch lines have a sewing process that can be used for _____, ______, or both

Answer 10

function, decoration

Question 11

____ lines are thick lines with repeating pattern of long line broken up by short dash

Answer 11

chain