1. The process of enlarging the end of an existing hole to accommodate the head of socket screw is called
counter-boring.
2. The process of beveling the end of existing hole is called
counter-sinking.
3. While chipping, the clearance angle is the angle between
the working surface of the job and the bottom surface of cutting edge of chisel.
4. The most suitable pitch of the hacksaw blade for cutting thin section tubes is
0.8 mm.
5. The suitable pitch of hacksaw for cutting solid brass is
1.8 mm.
6. The taper shank drills should be removed from the machine spindle by means of
drift.
7. Drill chucks are held on the machine spindle by means of
arbor.
8. What should be the blank size of round bar for cutting M16 threads with 2 mm pitch with a
die?
15.8 mm.
9. Drill sleeve is used when the taper shank of the drill is
smaller than the machine spindle.
10. The lip clearance angle of twist drill for general purpose should be
12° to 15°.
11. The suitable cutting fluid for drilling M.S. plate is
soluble oil.
12. The commonly used standard length of hacksaw blade is
250 mm.
13. The distance a drill advances into the job in one complete revolution is known as
feed .
14. Which one of the following is used to hold the straight shank drill having diameter less than
12 mm ?
Drill chuck.
15. The rate of feed depends upon
(a) finish required
(b) material of tool (drill)
(c) material to be drilled
(d) all the above.
16. Which among the following is NOT the factor for selection of cutting speed and feed
for reaming a hole with a machine reamer ?
Rigidity of the fixture.
17. A nut is to be made for a screw of M10x1.5. What should be the size of drilled hole?
8.5 mm.
18. Which among the following factors will NOT influence the selection of the cutting speed
while performing operation on drilling machine ?
Width of job.
19. The reamer teeth and spacing are designed to assist in reaming more accurate holes with good surface finish. Which one of the following is true regarding the number of teeth and their spacing ?
Even number of teeth and uneven spacing.
20. Which among the following is an artificial abrasive ?
Aluminium oxide.
counter-boring.
2. The process of beveling the end of existing hole is called
counter-sinking.
3. While chipping, the clearance angle is the angle between
the working surface of the job and the bottom surface of cutting edge of chisel.
4. The most suitable pitch of the hacksaw blade for cutting thin section tubes is
0.8 mm.
5. The suitable pitch of hacksaw for cutting solid brass is
1.8 mm.
6. The taper shank drills should be removed from the machine spindle by means of
drift.
7. Drill chucks are held on the machine spindle by means of
arbor.
8. What should be the blank size of round bar for cutting M16 threads with 2 mm pitch with a
die?
15.8 mm.
9. Drill sleeve is used when the taper shank of the drill is
smaller than the machine spindle.
10. The lip clearance angle of twist drill for general purpose should be
12° to 15°.
11. The suitable cutting fluid for drilling M.S. plate is
soluble oil.
12. The commonly used standard length of hacksaw blade is
250 mm.
13. The distance a drill advances into the job in one complete revolution is known as
feed .
14. Which one of the following is used to hold the straight shank drill having diameter less than
12 mm ?
Drill chuck.
15. The rate of feed depends upon
(a) finish required
(b) material of tool (drill)
(c) material to be drilled
(d) all the above.
16. Which among the following is NOT the factor for selection of cutting speed and feed
for reaming a hole with a machine reamer ?
Rigidity of the fixture.
17. A nut is to be made for a screw of M10x1.5. What should be the size of drilled hole?
8.5 mm.
18. Which among the following factors will NOT influence the selection of the cutting speed
while performing operation on drilling machine ?
Width of job.
19. The reamer teeth and spacing are designed to assist in reaming more accurate holes with good surface finish. Which one of the following is true regarding the number of teeth and their spacing ?
Even number of teeth and uneven spacing.
20. Which among the following is an artificial abrasive ?
Aluminium oxide.
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