Monday, January 28, 2019

CUTTING TOOLS AND OPERATIONS MCQ PART-2 FOR SEM 1




1) Both sides of a flat bastard file have


double cut teeth
wavy teeth
no cut
single cut teeth

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
Sand 

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.
cutting curved surfaces. 
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°
118°

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
9.75 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°
8 to 12° 

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