Q.1
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.2
A left hand tool on a lathe cuts most efficiently when it travels
  • from left to right end of the lathe bed
  • from right to left end of the lathe bed
  • with the help of a compound slide
  • across the bed
Q.3
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
  • carbide, ceramic, cermet, borazon
  • ceramic, carbide, borazon, cermet
  • cermet, carbide, ceramic, borazon
  • borazon, ceramic, carbide, cermet
Q.4
Which of the following statement is incorrect with reference of lathe cutting tools?
  • The flank of the tool is the surface or surfaces below and adjacent to the cutting edges
  • The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges
  • The heel is that part of the tool which is shaped to produce the cutting edges and face
  • The base is that surface of the shank which bears against the support and takes tangent pressure of the cut
Q.5
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.6
The lead screw of a lathe has __________ threads.
  • single start
  • double start
  • multi-start
  • any one of these
Q.7
Larger end cutting edge angle __________ tool life.
  • increases
  • decreases
  • does not effect
  • All of above
Q.8
In oblique cutting system, the maximum chip thickness occurs at the middle.
  • Correct
  • Incorrect
Q.9
Which of the following statement is wrong about ultra-sonic machining?
  • It is best suited for machining hard and brittle materials.
  • It cuts materials at very slow speeds.
  • It removes large amount of material.
  • It produces good surface finish.
Q.10
A drill considered as a cutting tool having zero rake, is known as a
  • flat drill
  • straight fluted drill
  • parallel shank twist drill
  • tapered shank twist drill
Q.11
A fixture is defined as a device which
  • holds and locates a workpiece and guides and controls one or more cutting tools
  • holds and locates a workpiece during an inspection or for a manufacturing operation
  • is used to check the accuracy of workpiece
  • all of the above
Q.12
A fixture does not guide the tool.
  • Correct
  • Incorrect
Q.13
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.14
Gear lapping is an operation
  • after heat treatment
  • prior to heat treatment
  • for gear reconditioning
  • none of these
Q.15
Crater wear occurs mainly on the
  • nose part, front relief face and side relief face of the cutting tool
  • face of the cutting tool at a short distance from the cutting edge only
  • cutting edge only
  • front face only
Q.16
The method of grinding used to produce a straight or tapered surface on a workpiece, is
  • internal cylindrical grinding
  • form grinding
  • external cylindrical grinding
  • surface grinding
Q.17
Side rake angle on tools is provided to control chip flow.
  • True
  • False
Q.18
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.19
The average cutting speed for turning brass with a high speed steel tool is
  • 15 to 19 m/min
  • 25 to 31 m/min
  • 60 to 90 m/min
  • 90 to 120 m/min
Q.20
The rake angle required to machine brass by high speed steel tool is
  • 0°
  • 10°
  • 20°
  • -10°
Q.21
A twist drill is a
  • side cutting tool
  • front cutting tool
  • end cutting tool
  • none of these
Q.22
Twist drills are made of
  • high speed steel
  • carbon steel
  • stainless steel
  • either (a) or (b)
Q.23
A push broach as compared to pull broach
  • has less number of teeth
  • is short and stocky
  • removes less material for each pass of the tool
  • all of the above
Q.24
The tool made of cemented carbide wear out faster at
  • slow speeds
  • medium speeds
  • fast speeds
  • very fast speeds
Q.25
The cutting tool in a milling machine is mounted on
  • spindle
  • arbor
  • column
  • knee
Q.26
A fine grained grinding wheel is used to grind hard materials.
  • Correct
  • Incorrect
Q.27
Cast iron during machining produces
  • continuous chips
  • discontinuous chips
  • continuous chips with built-up-edge
  • none of these
Q.28
A single point thread cutting tool should ideally have
  • zero rake angle
  • positive rake angle
  • negative rake angle
  • point angle
Q.29
The work or surface speed for cylindrical grinding varies from
  • 5 to 10 m/min
  • 10 to 20 m/min
  • 20 to 30 m/min
  • 40 to 60 m/min
Q.30
When the cutting edge of the tool is dull, then during machining
  • continuous chips are formed
  • discontinuous chips are formed
  • continuous chips with built-up edge are formed
  • no chips are formed
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