Hands-On AutoCAD LT ©2005

Chapter 12: Threads, Fasteners, and Tolerancing


1.	Holes that do not go all the way through a component are called
		A)	stop holes.
		B)	blind holes.
		C)	partial holes.
		D)	sunk holes.


2.	A hole specified to accommodate a fastener requires
		A)	clearance.
		B)	tolerance.
		C)	allowance.
		D)	symmetry.


3.	A hole large enough in diameter to allow a part to be easily engaged is a
		A)	true-fit hole.
		B)	loose-fit hole.
		C)	clearance hole.
		D)	close-fit hole.


4.	The symbol for depth is
		A)
		B)
		C)
		D)


5.	In a blind hole, the angle typically produced by the end of a drill bit is
		A)	89°.
		B)	98°.
		C)	112°.
		D)	118°.


6.	The symbol for counterbore is
		A)
		B)
		C)
		D)


7.	The symbol for countersink is
		A)
		B)
		C)
		D)


8.	The included angle for the countersunk portion of a metric-sized hole is
		A)	45°.
		B)	62°.
		C)	82°.
		D)	90°.


9.	A countersunk hole is usually prepared to accommodate a
		A)	flat-head screw.
		B)	round-head screw.
		C)	hex-head screw.
		D)	socket-head screw.


10.	The symbol for diameter is
		A)
		B)	Ø
		C)
		D)