Q.1

The tool life, in case of continuous cutting, is much better than intermittent cutting.

  • Agree
  • Disagree
Q.2

A grinding wheel is said to be of __________ if it holds the abrasive grains more securely.

  • soft grade
  • medium grade
  • hard grade
Q.3

Which of the following statement is correct for oblique cutting system?

  • The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool.
  • Frequently, more than one cutting edges are in action.
  • The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge.
  • all of the above
Q.4

A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different

  • materials
  • types of gears
  • number of teeth
  • width of gears
Q.5

To grind brittle materials, a coarse grained grinding wheel is used.

  • Agree
  • Disagree
Q.6

High speed steel cutting tools operate at cutting speeds __________ than carbon steel tools.

  • 2 to 3 times lower
  • 2 to 3 times higher
  • 5 to 8 times higher
  • 8 to 20 times higher
Q.7

In down milling, the thickness of chip is

  • minimum at the beginning of the cut and maximum at the end of the cut
  • maximum at the beginning of the cut and minimum at the end of the cut
  • uniform throughout the cut
  • none of these
Q.8

In hot machining, the work is heated by

  • simple heating
  • flame heating
  • induction heating
  • any one of these
Q.9

A taper tap has

  • its end tapered for about three or four threads
  • its end tapered for about eight or ten threads
  • full threads for the whole of its length
  • none of the above
Q.10

Glazing in grinding wheels takes place when the

  • wheel is too hard or wheel revolves at a very high speed
  • wheel is too soft or wheel revolves at a very slow speed
  • wheel is too hard and wheel revolves at very slow speed
  • wheel is too soft and wheel revolves at a very high speed
Q.11

When the grinding wheel is marked by the letters from I to P, it indicates that the grinding wheel is of hard grade.

  • True
  • False
Q.12

The type of reamer used for reaming soft aluminium or copper, is

  • straight fluted reamer
  • left hand spiral fluted reamer
  • right hand spiral fluted reamer
  • any one of these
Q.13

Jigs are used

  • for holding and guiding the tool in drilling, reaming or tapping operations
  • for holding the work in milling, grinding, planing or turning operations
  • to check the accuracy of workpiece
  • none of the above
Q.14

For fast removal of materials during grinding, a __________ grinding wheel is used.

  • coarse grained
  • fine grained
  • medium grained
Q.15

The part of the tool on which cutting edge is formed is called nose.

  • Correct
  • Incorrect
Q.16

The main purpose of a boring operation, as compared to drilling, is to

  • drill a hole
  • finish the drilled hole
  • correct the hole
  • enlarge the existing hole
Q.17

A dense structure of a grinding wheel is used for

  • hard materials
  • brittle materials
  • fnishing cuts
  • all of these
Q.18

When the tool moves parallel to the lathe axis, the movement is termed as

  • cross feed
  • angular feed
  • longitudinal feed
  • any one of these
Q.19

In the relation VTn = C, the value of n for ceramic tools is

  • 0.1 to 0.2
  • 0.20 to 0.25
  • 0.25 to 0.40
  • 0.40 to 0.55
Q.20

The grinding operaion is a

  • shaping operation
  • forming operation
  • surface finishing operation
  • dressing operation
Q.21

Gears can be cut on a shaper.

  • Agree
  • Disagree
Q.22

Low helix angle drills are preferred for drilling holes in

  • plastics
  • copper
  • cast steel
  • carbon steel
Q.23

Amm drilling machine means that it can drill a hole

  • of maximum diameter 15 mm
  • in 15 mm thick plates
  • having cross-sectional area of 15 mm2
  • none of these
Q.24

The tool material, for faster machining, should have

  • wear resistance
  • red hardness
  • toughness
  • all of these
Q.25

The swing diameter over carriage is always less than the swing diameter over bed.

  • Yes
  • No
Q.26

Which of the following process is used for preparing parts having large curved surfaces and thin sections?

  • Hot machining
  • Ultra-sonic machining
  • ECM process
  • Chemical milling
Q.27

The chamfering is an essential operation after

  • knurling
  • rough turning
  • boring
  • thread cutting
Q.28

The keyways, grooves and slots cannot be cut on a shaper.

  • True
  • False
Q.29

Chip breakers are used to

  • increase tool life
  • remove chips from bed
  • break the chips into short segments
  • to minimise heat generation
Q.30

The grade of grinding wheel depends upon

  • hardness of the material being ground
  • speed of wheel and work
  • condition of grinding machine
  • all of these
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