1) Both sides of a flat bastard file have
double cut teeth
wavy teeth
no cut
2) The length of a hacksaw blade is measured from
one end of the toothed portion to the other end
the center of one pin hole to the center of another pinhole
end to end of the blade
end of one hole to the end of the other pinhole
3) The new hacksaw blade should not be used in the blind saw cut made by the old blade because
space is not enough to run the blade
the blade is costly
the new blade has sharp teeth
none of the above
4) The safe edge of the file is used to
give the best finishing
cut metal very quickly
finish flat surfaces only
protect the adjacent sides
5) File card is used for
cleaning the workpiece
renewing the file teeth
cleaning the file teeth
cleaning the chips
6) The setting of teeth in hacksaw blade is
required for providing teeth on the blade
not required
required to avoid friction between the blade and workpiece
required for increasing the strength of the blade
7) A Ø 6H7 hole is to be reamed in a steel workpiece. What size of the drill will be required?
6.0 mm
6.2 mm
5.5 mm
5.8 mm
8) Which one of the following materials are used for making a grinding wheel?
Silicon carbide
Calcium carbonate
Granite
9) Spot-facing is done to
enlarge the existing hole.
deburr the mouth of the drilled hole
gives a fine finish to the drilled hole.
make surface flat so that bolt head can take a proper seat on the surface.
10) For tapping with M5 tap, what size drill will you use?
4.5 mm
3.8 mm
4.0 mm
3.5 mm
11) A slight convexity is made on the cutting edges of a flat chisel for
cutting sharp corners.
allowing lubricant to reach the cutting edge.
preventing digging of the ends of cutting edge.
12) The point angle of twist drill depends upon the
type of drilling machine
size of the drill
cutting speed
material to be drilled
13) The point angle of twist drill for general purposes is
135°
60°
90°
14) The relief angle given behind the cutting lips is called
helix angle
rake angle
chisel edge angle
lip clearance angle
15) A hole of 10 mm diameter is to be finished with a hand reamer. The hole size required for reaming should be
9.00 mm
9.50 mm
9.25 mm
16) The process of enlarging the end of an existing hole to accommodate the head of the socket screw is called
counter-sinking
counter-boring
boring
spot-facing
17) The process of beveling the end of the existing hole is called
counter-boring
boring
spot-facing
counter-sinking
18) While chipping, the clearance angle is the angle between
the working surface of the job and the top surface of cutting edge of the chisel.
the working surface of the job and the bottom surface of cutting edge of the chisel.
the surface at a right angle to the cutting edge of chisel and the working surface of the job.
None of the above.
19) The most suitable pitch of the hacksaw blade for cutting thin section tubes is
1.0 mm
1.4 mm
1.8 mm
0.8 mm
20) The suitable pitch of hacksaw for cutting solid brass is
1.8mm
0.8 mm
1.0 mm
1.4mm
21) The taper shank drills should be removed from the machine spindle by means of
hammer
punch
tang of file
drift
22) Drill chucks are held on the machine spindle by means of
chuck nut
draw-in bar
drift
arbor
23) What should be the blank size of the round bar for cutting M16 threads with 2 mm pitch with a die?
15.5 mm
15.8 mm
15.9 mm
16.0 mm
24) Drill sleeve is used when the taper shank of the drill is
larger than the machine spindle
equal to the machine spindle
smaller than the machine spindle
None of the above
25) The lip clearance angle of twist drill for the general purpose should be
12 to 15°
3 to 5°
4 to 8°
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