1) The Suitable cutting fluid for drilling M.S. plate is
compressed air
water
dry
soluble oil
2) The commonly used standard length of a hacksaw blade is
100 mm
150 mm
250 mm
200 mm
3) The distance a drill advances into the job in one complete revolution is known as
feed
r.p.m
machine speed
cutting speed
4) Which one of the following is used to hold the straight shank drill having a diameter less than 12 mm?
Drill drift
Socket
Drill Chuck
Sleeve
5) The rate of feed depends upon
the material of tool (drill)
material to be drilled
finish required
all the above
6) Which among the following is NOT the factor for selection of cutting speed and feed for reaming a hole with a machine reamer?
Diameter (size) of the reamer.
The rigidity of the fixture.
The material of the job.
The material of the reamer.
7) A nut is to be made for a screw of M10 x 1.5. What should be the size of the drilled hole?
8.5 mm
9.0 mm
9.5 mm
10.0 mm
8) Which among the following factors will NOT influence the selection of the cutting speed while performing an operation on a drilling machine?
Width of job
Material of tool
Material of job
The operation to be performed
9) 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?
An uneven number of teeth and uneven spacing
An uneven number of teeth and even spacing
Even the number of teeth and uneven spacing
Even the number of teeth and even
10) which among the following is an artificial abrasive?
corundum
Diamond
Emery
Aluminum Oxide
11) The angle of drill grinding gauge is
59°
118°
124°
121°
12) A die nut is nothing but
a nut for tightening the die in the die stock
a die which is used for cutting threads in nuts
a nut forged by using dies
a die in the shape of a nut
13) A warding file is similar to
flat file but uniform in width
hand file but narrow in width
flat file but thinner and uniform in thickness
flat file but thinner in thickness
14) The taper shank of a drill of 20 mm diameter has
MT-1 taper
MT-2 taper
MT-3 taper
MT-4 taper
15) For grinding carbide materials
Silicon carbide wheel is used
The diamond wheel is used
Aluminum oxide wheel is used
Corundum wheel is used
16) Hacksaw blades with fine-pitched teeth are more effective on
non-metals
thin section metal
soft metals
broad section metals
17) When threading a blind hole, the third (finisher) tap is used
to form the threads easily
to start the threads
after the first (rougher) tap
to thread the hole with full threads up to the bottom
18) In case of a single cut file, the teeth are cut on the file face at an angle of
45° to the center line of the file
60° to the center line of the file
75° to the center line of the file
80° to the center line of the file
19) A short reamer with an axial hole used with an arbor or mandrel is called
chucking reamer
parallel reamer
expansion reamer
adjustable reamer
20) The material of twist drill is generally
H.S.S
Diamond
Carbide steel
21) The best position to hold the job in the vice when filing is
shoulder level
arm level
elbow level
eye level
22) Which one among the following is NOT the cause for a broken tap while tapping?
Smaller tap drill size is used
The tap has coarse threads
Cutting oil is not used
Too much downward pressure is applied
23) What will happen if the job is loosely fitted between centers in cylindrical grinding?
The job will not rotate
The job will be thrown out
The job will be oversized
The job will be out of round
24) The cause for glazing of a grinding wheel is
a) grain size is too fine
b) wheel is hard.
c) wheel speed is too fast
d) 'A’ and ‘B’ both
25) Which one of the following bonds is most commonly used on grinding wheels?
Vitrified
Rubber
Shellac
Silicate
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