Production Engineering Set 20

Mechanical Engineering

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This set of Production Engineering Multiple Choice Questions & Answers (MCQs) focuses on Production Engineering Set 20

Q1 | Photoelectric transducers are used for the measurement of any phenomenon which can be used to produce
  • Variation in current
  • Variation in voltage
  • Variation in light intensity
  • Variation in flux density
  • Any of the above
Answer: Variation in light intensity
Q2 | Chisels for metal cutting are
  • Hardened in the middle
  • Hardened at cutting edge
  • Hardened all over
  • Hardened at random
  • Never hardened
Answer: Hardened all over
Q3 | Kind of tools used to undercut corners on a job that is to be hardened and ground is
  • Vee shaped tool
  • Form tool
  • Knurling tool
  • Roundnose tool
  • Parting tool
Answer: Roundnose tool
Q4 | If a drill has different lengths of cutting edges
  • Cutting edge will be over size
  • The drilled hole will be rough
  • The drilled hole will not be circular
  • The drilled hole will be smooth
  • Cutting edge will become blunt rapidly
Answer: Cutting edge will become blunt rapidly
Q5 | Plastic gears are used in
  • Toys
  • Instruments
  • Low load applications
  • Low noise applications
  • Any of the above
Answer: Any of the above
Q6 | Fine sand is used for preparing the moulds for
  • Symmetrical castings
  • Large castings
  • Small castings
  • Non-ferrous castings
  • Centrifugal castings
Answer: Small castings
Q7 | Which one of the following measuring instruments is supposed to be most accurate?
  • Micrometer
  • Vernier dial gauge
  • Optical projector
  • Steel scale
  • Vernier caliper
Answer: Optical projector
Q8 | A diamond point chisel is used for
  • V-shaped grooves
  • Spherical surfaces
  • Flat surfaces
  • Convex surfaces
  • Round surfaces
Answer: V-shaped grooves
Q9 | Which of the following is a chipless machining process?
  • Metal spinning
  • Knurling
  • Hobbing
  • Lapping
  • None of the above
Answer: Metal spinning
Q10 | With HSS tools the maximum safe operating temperature is of the order of
  • 200?C
  • 440?C
  • 640?C
  • 540?C
  • 340?C
Answer: 540?C
Q11 | Relief angle on HSS tools usually vary from
  • 11 to 15?
  • 22 to 27?
  • 16 to 150?
  • 28 to 30?
  • 3 to 10?
Answer: 3 to 10?
Q12 | Spiral flutes are provided on drill bits to
  • Help from the cutting edge of the drill point
  • Curl the chip tightly for easier removal
  • Provide passage for coolant supply
  • All of the above
  • None of the above
Answer: All of the above
Q13 | Which one of the following is supposed to be least accurate?
  • Surface plate
  • Air gauge
  • Optical projector
  • Vernier micrometer
  • Steel scale
Answer: Steel scale
Q14 | Automobile gears are generally made of
  • Alloy steel
  • Cast iron
  • Nitrided steel
  • Cast steel
  • Non-ferrous materials
Answer: Alloy steel
Q15 | Marform is
  • Is a foming process on lathe in which movement of tool is neither governed by cross slide nor by compound slide
  • A work holding device in which plane of rotation can be changed while working
  • A darwing process that forms metal sheet by using a movable steel punch and a rubber headed ram
  • Is a forming tool and on lathe machine to generate spherical surfaces
  • Is a gauge used to check regular surfaces
Answer: A darwing process that forms metal sheet by using a movable steel punch and a rubber headed ram
Q16 | For aluminium, the cutting speed on lathe is around
  • 150 m/min
  • 300 m/min
  • 100 m/min
  • 1000 m/min
  • 30 m/min
Answer: 300 m/min
Q17 | Which of the following defect results due to mixing of two streams of molten metal that are too cold to fuse properly?
  • Cold shut
  • Swell
  • Honey coming
  • Scab
  • Shrinkage
Answer: Cold shut
Q18 | The range of voltage (open circuit) in are welding is generally
  • 20 - 40 V
  • 100 - 150 V
  • 40 - 90 V
  • 150 - 230 V
  • 400 - 440 V
Answer: 40 - 90 V
Q19 | A Bourdon tube is generally made of
  • Monel metal
  • Beryllium copper alloy
  • Phosphor bronze
  • Stainless steel
  • Any of the above
Answer: Any of the above
Q20 | The chemical used in generating acetylene is
  • Charcoal
  • Calcium carbonate
  • Calcium carbide
  • Carbon
  • Crushed bone
Answer: Crushed bone
Q21 | Which one of the following is not a part of micrometer
  • Sleeve
  • Spindle
  • Thimble
  • Anvil
  • Beam
Answer: Beam
Q22 | Plug rolling is used to
  • Reduce the wall thickness and increase the diameter of tubes already made
  • Remove out of roundness of pipes
  • Increase the wall thickness of pipes at ends
  • Reduce the diameter of pipe
  • Cut threads at the ends of pipes
Answer: Reduce the wall thickness and increase the diameter of tubes already made
Q23 | Burr is
  • Boundary between finished and unifinished portion on a work piece
  • Sharp edge remaining on the metal after curring, stamping or machining
  • A marking or work piece to identify for correct position on a work piece
  • Burnt surface of a casting
  • Unmachined portion of work piece
Answer: Sharp edge remaining on the metal after curring, stamping or machining
Q24 | Which process is used for manufacturing the body of a carburettor?
  • Die casting
  • Fine sand casting
  • Electro forming
  • Sintering
  • Metal spraying
Answer: Die casting
Q25 | The silver point temperature is
  • 760?C
  • 1500.5?C
  • 500?C
  • 960.5?C
  • 1100.5?C
Answer: 960.5?C
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