INSTRUCTIONS: Refer to drawing $21$A$042$ to answer the following questions.

$1.$ What type of section view was used?

$1.$

$2.$ What type of aluminum was specified?

$2.$

$3.$ How many threaded holes does the object contain?

$3.$

$4.$ Why do holes $\backslash ($ C $\backslash )$ and $\backslash ($ D $\backslash )$ appear to be threaded holes in their circular view?

$5.$ Are the slots equal distance from the ends of the bar $($calculate$)?$

$4.$

$6.$ How many different drill sizes are specified?

$5.$

$7.$ What is the tolerance on the reamed holes?

$6.$

$8.$ Are the reamed holes equally spaced?

$7.$

$9.$ How far apart $($center$-$to$-$center$)$ are holes E and H$?$

$8.$

$10.$ How much tolerance may accumulate between the centers of holes E and H $?$

$11.$ What is the maximum center spacing between holes $\backslash ($ B $\backslash )$ and $\backslash ($ D $\backslash )?$

$9.$

$12.$ What is the maximum center spacing between holes $\backslash ($ G $\backslash )$ and $\backslash ($ H $\backslash )?$

$10.$

$11.$

$13.$ What is the minimum wall thickness between the side of hole J and the adjacent slot?

$14.$ What thread form is specified for the tapped holes?

$12.$

$15.$ What thread series is specified?

$16.$ What class of fit may be assumed for the threaded holes?

$17.$ Are the threads right$-$hand or left$-$hand?

$18.$ What is the tap drill depth in hole A$?$

$19.$ How many full threads will hole A contain?

$13.$

$14.$

$15.$

$16.$

$17.$

$18.$

$19.$

$20.$ What size fastener is intended for use in hole $\backslash ($ C $\backslash )?$

$20.$