Production Engineering Set 10

Mechanical Engineering

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This set of Production Engineering Multiple Choice Questions & Answers (MCQs) focuses on Production Engineering Set 10

Q1 | While using HSS tools on a lathe, cutting speed will be maximum when machining
  • Mild steel
  • Cast iron
  • High carbon steel
  • High speed steel
  • Aluminium
Answer: Aluminium
Q2 | Heating elements for domestic and industrial electrical applications are made of
  • Babbit metal
  • Invar
  • Delta metal
  • Duralumin
  • Nichrome
Answer: Nichrome
Q3 | The process of joining two slip gauges is known as
  • Piercing
  • Wringing
  • Welding
  • Pressing
  • Soldering
Answer: Wringing
Q4 | When 50 mm rod is turning at a spindle speed of 200 rpm the cutting speed would be
  • 15 - 20 m/min
  • 10 - 12 m/min
  • 12 - 15 m/min
  • 30-35 m/min
  • 20 - 28 m/min
Answer: 30-35 m/min
Q5 | The commonly used material for thermocouples is
  • Chromel-copper
  • Chromel-alumel
  • Platinum-rhodium
  • Any of the above
  • None of the above
Answer: Any of the above
Q6 | It is desired to remove large quantity of material from a job in shortest possible time, on a lathe using high speed steel cutter. Which of the following step will be helpful?
  • Reduce spindle speed and increase depth of cut
  • Increase spindle speed and take light cuts
  • Increase spindle speed and take light cuts
  • At the speed corresponding to cutting speed take roughing cuts of maximum possible depth
  • None of the above
Answer: At the speed corresponding to cutting speed take roughing cuts of maximum possible depth
Q7 | Which surfaces are usually 'wrung' together?
  • Gears
  • Slip gauges
  • Threads
  • Drill shanks and collets
  • Bed guides for lathe
Answer: Slip gauges
Q8 | Which of the following is often used as flux in brazing process?
  • Fevicol
  • Iron dust
  • Borax
  • Ammonia chloride
  • Turpentine
Answer: Borax
Q9 | A crater is a pit formed on
  • flank of tool
  • face of tool
  • surface of work piece
  • None of the above
  • Parting off
Answer: face of tool
Q10 | Green colour on a pattern indicates
  • Seats for loose core prints
  • Fillets
  • Surface to be machined
  • Core prints
  • Surface to be left unmachined
Answer: Seats for loose core prints
Q11 | Shear angle varies with
  • Feed
  • Depth of cut
  • Material of tool
  • Work piece materials and tool geometry
  • Cutting speed
Answer: Work piece materials and tool geometry
Q12 | Weld spatter is
  • A flux
  • A filler material used in gas welding
  • A welding defect
  • An electrode used in inert atmosphere
  • A filler material used in soldering
Answer: A welding defect
Q13 | In centreless grinding, work piece is clamped in
  • Chuck
  • Bed
  • Vice
  • Not clamped
  • Collet
Answer: Not clamped
Q14 | Straight fluted drills are used for
  • Amorphous materials
  • Ferrous materials
  • Brass and soft materials
  • Very hard materials
  • Brittle materials
Answer: Brass and soft materials
Q15 | Carbondioxide is
  • Neutral gas
  • Combustible gas
  • Rare gas
  • Inactive gas
  • Ionic gas
Answer: Inactive gas
Q16 | Necking is
  • Preparation of surface for brazing
  • Hole drilled for riveting
  • Drilling a hole in a plate
  • Machining a groove around cylindrical shaft
  • Initial spot welding to position jobs
Answer: Machining a groove around cylindrical shaft
Q17 | The main advantage of investment casting is
  • It can be conveniently adopted for heavy castings
  • High degree of accuracy and surface finish
  • There is no sophisticated technology involved
  • No special tooling is required
  • Raw materials required are cheap
Answer: High degree of accuracy and surface finish
Q18 | Cutting speeds for some materials are given as
  • 30 m/min
  • 20 m/min
  • 100 m/min
  • 40 m/min
  • 80 m/min
Answer: 40 m/min
Q19 | Large size bolt heads are made by
  • Hammering
  • Roll forging
  • Upset-forging
  • Swaging
  • Casting
Answer: Upset-forging
Q20 | Cyaniding
  • A process of annealing a ferrous alloy
  • A process of case hardening
  • A process of removing carbon from metals
  • A process of hardening and tempering
  • A process used on non-ferrous materials for improving surface quantities
Answer: A process of case hardening
Q21 | In climb milling
  • Work moves in same direction as rotation of the cutter
  • Tool climbs on the work piece for cutting operation
  • Cutting takes place in two planes simultaneoudly
  • Work is fed to cutter in lateral direction
  • Work moves in opposite direction as rotation of the cutter
Answer: Work moves in same direction as rotation of the cutter
Q22 | Which of the following is basically a polishing operation?
  • Lapping
  • Soft grinding
  • Honing
  • Parting off
  • Buffing
Answer: Buffing
Q23 | When a thin job is to be machined on a shaper, in order to prevent warping, which one of the following steps should be taken first?
  • Light cut
  • Heavy cut
  • Single heavy cut
  • Any of the above
  • Vernier caliper
Answer: Light cut
Q24 | Which of the following metal is best suited for electro forming?
  • Lead
  • Silver
  • Mild steel
  • Aluminium
  • Zinc
Answer: Silver
Q25 | Discontinuous chips in brittle materials are promoted by
  • low cutting speed and insufficient rake angle
  • coarse feed and low cutting speed
  • low cutting speed and insufficient coolant
  • None of the above
  • Parting off
Answer: low cutting speed and insufficient rake angle
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