The lines given in the American standards for use in the making of a drawing are known as the _____.
A. conventional line symbols
B. alphabet of lines
C. national line chart
D. symbols of line
B. alphabet of lines
The lines that are drawn lightly at the top and bottom of each line of letters are called _____.
A. construction lines
B. object lines
C. guidelines
D. extension lines
C. guidelines
How far should extension lines continue beyond the arrowheads?
A. 1/8 inch
B. 1/4 inch
C. 3/8 inch
D. 1/2 inch
A. 1/8 inch
The size of an object is given between the _____.
A. centerlines
B. dimension lines
C. extension lines
D. object lines
B. dimension lines
Which line is the darkest on an orthographic drawing?
A. hidden
B. center
C. section
D. object
D. object
Which type of lettering should be used in mechanical drawing?’
A. uppercase, only
B. lowercase, only
C. both upper- and lowercase
D. neither upper – nor lowercase
A. uppercase, only
Which of the following is an obtuse. angle?
A. 60°
B. 90°
C. 110°
D. 250°
C. 110°
The distance around a circle is called the _____.
A. radius
B. arc
C. diameter
D. circumference
D. circumference
How much overlapping should there be when using a French curve?
A. 1/6 inch
B. 1/8 inch
C. 1/4 inch
D. 1/2 inch
C. 1/4 inch
The standard farm of lettering on working drawings.is single stroke.
A. commercial gothic
B. roman
C. Italic
D. Bodoni
A. commercial gothic
