Test 25: Machine Shop Practice
1. A universal chuck cannot be used to cut
A. an eccentric
B. a round stock
C. a cam
D. A and C
2. The jaw of a standard vise is
A. Hard
B. semi-hard
C. semi-soft
D. soft
3. When facing off a piece of material in the lathe chuck the
tool bit must be set ___________.
A. above center
B. at the center
C. below the center
D. off center
4. Before applying layout blue on a piece of metal, it must be
A. Cleaned
B. Cold
C. Hot
D. Roughened
5. Tool Steel can be hardened by:
A. heating red hot and plunging into water
B. heating red hot and cooling in a blast of air
C. heating red hot and plunging into line seed or cotton seed
oil
D. any of the above, depending on the type and use
6. A piece of mild steel held against an emery wheel will give
off
A. bright shiny sparks
B. green sparks
C. light straw-colored sparks
D. no sparks
7. Another name for hydrochloric acid is
A. Acetic Acid
B. Muriatic acid
C. nitric acid
D. sulfuric acid
8. A flexible hacksaw blade has a tendency to ____________.
A. snap easily
B. buckle or run out of line when two much pressure is
applied
C. cut too fast
D. cut on a slant
9. A pillar file is used for
A. filing against a shoulder
B. filing keyways
C. filing slots
D. any of the above
10. The length of a file is measured from __________.
A. end to end
B. heel to end
C. point to end
D. point to heel
11. In general, files are divided into two classes, namely
A. fine and coarse
B. rough and smooth
C. single-cut and double-cut
D. shapes and sizes
12. A pillar file has
A. one safe edge
B. three sage edges
C. two safe edges
D. A and C
13. The tang of a file is the part that
A. does the cutting
B. fits into the handle
C. has no teeth
D. is opposite the handle
14. One of the factors involved in the choice of grinding wheel
is
A. the kind of material to be ground
B. the amount of stock to be removed
C. the kind of finish required
D. all of the above
15. The main difference between a planer and a shaper is
that:
A. The planer has an offset table and a sharper has a
horizontal table
B. the shaper has a rotating table and the planer has a
horizontal table
C. the table of a planer has a reciprocating motion past the
tool head while the table of the shaper is stationary and the
tool head has a reciprocating motion
D. one is larger than the other
16. A piece of tool steel held against an emery wheel will give
off _____________.
A. white sparks with stars on the end
B. yellow sparks
C. no sparks
D. green sparks
17. If you use a dry grinding wheel for sharpening tool bits,
dip the end of the bit in water frequently to prevent
______________.
A. annealing the cutting edge of the bit
B. burning your fingers
C. hardening of the tip
D. the tip for crystallizing
18. The tool used to cut gears is called a
A. gear center
B. gear cutter
C. gear hob
D. gear threader
19. The tool used to check internal pipe threads is called a
A. pitch gage
B. plug gage
C. ring gage
D. thread gage
20. The tool used to check external pipe threads is called a
A. pitch gage
B. plug gage
C. ring gage
D. thread gage
21. The operation of truing a grinding wheel is known as
A. Centering
B. Dressing
C. Rounding
D. Sizing
22. The cutting angle on a drill for drilling mild steel should be
_________
A. 39
B. 49
C. 59
D. 69
23. Which of the following is not common drill shank?
A. Bit
B. Fluted
C. Straight
D. Taper
24. Tapered shanks are used on large drill presses so that
A. the drill can be centered more easily
B. the drill can be easily forced out of the sleeve with a drift
C. the shank can be reground when worn
D. the shank will not turn when cutting
Answer: B
