Q.1

The factor responsible for the formation of continuous chips with built up edge is

  • low cutting speed and large rake angle
  • low cutting speed and small rake angle
  • high cutting speed and large rake angle
  • high cutting speed and small rake angle
Q.2

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

  • 0.1 to 0.2
  • 0.20 to 0.25
  • 0.25 to 0.40
  • 0.40 to 0.55
Q.3

A twist drill is a

  • side cutting tool
  • front cutting tool
  • end cutting tool
  • none of these
Q.4

The maximum production of small and slender parts is done by

  • watch maker's lathe
  • sliding head stock automatic lathe
  • multispindle automatic lathe
  • capastan lathe
Q.5

In ultra-sonic machining, the metal is removed by

  • using abrasive slurry between the tool and work
  • direct contact of tool with the work
  • maintaining an electrolyte between the work and tool in a very small gap between the two
  • erosion caused by rapidly recurring spark discharges between the tool and work
Q.6

The different spindle speeds on a lathe form

  • arithmetical progression
  • geometrical progression
  • harmonical progression
  • any one of these
Q.7

Gear lapping is an operation

  • after heat treatment
  • prior to heat treatment
  • for gear reconditioning
  • none of these
Q.8

As the cutting speed increases, tool life decreases.

  • Yes
  • No
Q.9

The cutting speed is minimum while machining __________ with a high speed steel tool.

  • cast iron
  • mild steel
  • brass
  • aluminium
Q.10

The depth of cut in drilling is __________ the drill diameter.

  • equal to
  • one-fourth
  • one-half
  • double
Q.11

Crater wear is predominant in

  • carbon tool steels
  • tungsten carbide tools
  • high speed steel tools
  • ceramic tools
Q.12

Drilling is an example of

  • orthogonal cutting
  • oblique cutting
  • simple cutting
  • uniform cutting
Q.13

The angle on which the strength of the tool depends is

  • rake angle
  • cutting angle
  • clearance angle
  • lip angle
Q.14

The top and sides of the table of a shaper usually have

  • L-type slots
  • T-type slots
  • I-type slots
  • any one of these
Q.15

In oblique cutting system, the maximum chip thickness occurs at the middle.

  • Correct
  • Incorrect
Q.16

The cutting tool in a milling machine is mounted on

  • spindle
  • arbor
  • column
  • knee
Q.17

In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is

  • cylindrical grinder
  • internal grinder
  • surface grinder
  • tool and cutter grinder
Q.18

The rear teeth of a broach

  • perform burnishing operation
  • remove minimum metal
  • remove maximum metal
  • remove no metal
Q.19

An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is

  • cutting speed
  • feed rate
  • shear angle
  • tool geometry
Q.20

In up 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.21

The rake angle required to machine brass by high speed steel tool is

  • 0°
  • 10°
  • 20°
  • -10°
Q.22

Side rake angle on tools is provided to control chip flow.

  • True
  • False
Q.23

The velocity of tool relative to the workpiece is known as cutting velocity.

  • True
  • False
Q.24

If the helix angle of the drill is made __________ 30°, then the torque required to drive the drill at a given feed will be more.

  • equal to
  • less than
  • more than
Q.25

The facing is an operation of

  • bevelling the extreme end of a workpiece
  • embossing a diamond shaped pattern on the surface of a workpiece
  • reducing the diameter of a workpiece over a very narrow surface
  • machining the ends of a workpiece to produce a flat surface square with the axis
Q.26

In metal machining, the work-tool contact zone is a zone where heat is generated due to

  • plastic deformation of metal
  • burnishing friction
  • friction between the moving chip and the tool face
  • none of the above
Q.27

A process of removing metal by pushing or pulling a cutting tool is called

  • up milling
  • down milling
  • forming
  • broaching
Q.28

The type of tool used on lathe, shaper and planer is

  • single point cutting tool
  • two point cutting tool
  • three point cutting tool
  • multi-point cutting tool
Q.29

The method of centreless grinding used to produce taper is

  • infeed grinding
  • through feed grinding
  • endfeed grinding
  • any one of these
Q.30

In a shaper, the length of stroke is increased by

  • increasing the centre distance of bull gear and crank pin
  • decreasing the centre distance of bull gear and crank pin
  • increasing the length of the arm
  • decreasing the length of the slot in the slotted lever
0 h : 0 m : 1 s