Quiz  /  Production Engineer MCQ Interview Questions and Answers

  • 1. 
    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

  • 2. 
    The velocity of tool relative to the work piece is known as cutting velocity.

  • True
  • False

  • 3. 
    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

  • 4. 
    Grinding wheels should be tested for balance:

  • only at the time of manufacture
  • before starting the grinding operation
  • at the end of grinding operation
  • occasionally

  • 5. 
    The angle included between the two lips projected upon a plane parallel to the drill axis and paralled to the two cutting lips, is called helix angle.

  • Correct
  • Incorrect

  • 6. 
    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

  • 7. 
    Larger end cutting edge angle __________ tool life.

  • increases
  • decreases
  • does not effect

  • 8. 
    In hot machining, tool is made of:

  • tungsten carbide
  • brass or copper
  • diamond
  • stainless steel

  • 9. 
    The different spindle speeds on a lathe form:

  • arithmetical progression
  • geometrical progression
  • harmonical progression
  • any one of these

  • 10. 
    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

  • 11. 
    Lapping is an operation of:

  • making a cone-shaped enlargement of the end of a hole
  • smoothing and squaring the surface around a hole
  • sizing and finishing a small diameter hole
  • producing a hole by removing metal along the circumference of a hollow cutting tool
  • sizing and finishing a small diameter hole

  • 12. 
    In orthogonal cutting system, the maximum chip thickness occurs at the middle.

  • Correct
  • Incorrect
  • Correct

  • 13. 
    In the relation VT(n) = 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
  • 0.20 to 0.25

  • 14. 
    The machining of titanium is difficult due to:

  • high thermal conductivity of titanium
  • chemical reaction between tool and work
  • low tool-chip contact area
  • none of these
  • low tool-chip contact area

  • 15. 
    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
  • minimum at the beginning of the cut and maximum at the end of the cut

  • 16. 
    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
  • from left to right end of the lathe bed

  • 17. 
    The lead screw of a lathe has __________ threads.

  • single start
  • double start
  • multi-start
  • any one of these
  • single start

  • 18. 
    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
  • face of the cutting tool at a short distance from the cutting edge only

  • 19. 
    Gear lapping is an operation:

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

  • 20. 
    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
  • external cylindrical grinding

  • 21. 
    In oblique cutting system, the maximum chip thickness occurs at the middle.

  • Correct
  • Incorrect
  • Incorrect

  • 22. 
    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
  • straight fluted drill

  • 23. 
    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
  • It removes large amount of material.

  • 24. 
    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
  • machining the ends of a workpiece to produce a flat surface square with the axis

  • 25. 
    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
  • holds and locates a workpiece during an inspection or for a manufacturing operation

  • 26. 
    A fixture does not guide the tool.

  • Correct
  • Incorrect
  • Correct

  • 27. 
    The lip angle of a single point tool is usually:

  • 20° to 40°
  • 40° to 60°
  • 60° to 80°
  • none of these
  • 60° to 80°

  • 28. 
    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

  • 29. 
    Side rake angle on tools is provided to control chip flow.

  • True
  • False
  • True

  • 30. 
    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
  • 60 to 90 m/min

  • 31. 
    Twist drills are made of:

  • high speed steel
  • carbon steel
  • stainless steel
  • either (a) or (b)
  • either (a) or (b)

  • 32. 
    The rake angle required to machine brass by high speed steel tool is:

  • 0°
  • 10°
  • 20°
  • -10°
  • 0°

  • 33. 
    A twist drill is a:

  • side cutting tool
  • front cutting tool
  • end cutting tool
  • none of these
  • end cutting tool

  • 34. 
    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
  • 20 to 30 m/min

  • 35. 
    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
  • all of the above

  • 36. 
    The tool made of cemented carbide wear out faster at:

  • slow speeds
  • medium speeds
  • fast speeds
  • very fast speeds
  • slow speeds

  • 37. 
    The cutting tool in a milling machine is mounted on:

  • spindle
  • arbor
  • column
  • knee
  • arbor

  • 38. 
    A fine grained grinding wheel is used to grind hard materials.

  • Correct
  • Incorrect
  • Correct

  • 39. 
    A single point thread cutting tool should ideally have:

  • zero rake angle
  • positive rake angle
  • negative rake angle
  • point angle

  • 40. 
    Cast iron during machining produces

  • continuous chips
  • discontinuous chips
  • continuous chips with built-up-edge
  • none of these
  • discontinuous chips

  • 41. 
    Internal gears can be made by:

  • hobbing
  • shaping with pinion cutter
  • shaping with rack cutter
  • milling

  • 42. 
    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
  • continuous chips with built-up edge are formed

  • 43. 
    Drilling is an example of:

  • orthogonal cutting
  • oblique cutting
  • simple cutting
  • uniform cutting
  • oblique cutting

  • 44. 
    The silicon carbide abrasive is chiefly used for grinding:

  • cemented carbide
  • ceramic
  • cast iron
  • all of these
  • all of these

  • 45. 
    In order to prevent tool from rubbing the work __________ on tools are provided.

  • rake angles
  • relief angles

  • 46. 
    Cemented carbide tool tips are produced by powder metallurgy.

  • True
  • False

  • 47. 
    Side rake angle of a single point cutting tool is the angle:

  • by which the face of the tool is inclined towards back
  • by which the face of the tool is inclined sideways
  • between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
  • between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base

  • 48. 
    If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is:

  • conical locator
  • cylindrical locator
  • diamond pin locator
  • vee locator

  • 49. 
    Segmental chips are formed during machining:

  • mild steel
  • cast iron
  • high speed steel
  • high carbon steel
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