Production Engineering Set 14

Mechanical Engineering

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This set of Production Engineering Multiple Choice Questions & Answers (MCQs) focuses on Production Engineering Set 14

Q1 | Coarse feed, low rake angle, low cutting speed and insufficient cooling help produce
  • continuous chips with built up edges in ductile materials
  • discontinuous chips in brittle materials
  • discontinuous chips in ductile materials
  • continuous chips in ductile materials
  • Parting off
Answer: continuous chips with built up edges in ductile materials
Q2 | The chisels used in sheet metal work have
  • Rounded cutting edge
  • Straight cutting edge
  • Any of (A) or (B)
  • Parting off
Answer: Rounded cutting edge
Q3 | The processes used for the machining of sintered and tungsten carbide is
  • Grinding process
  • Electroforming process
  • Explosive forming process
  • Turning process
  • None of the above
Answer: Electroforming process
Q4 | Nitrided steel is used for gears where
  • Variable load operation is desired
  • Low speed operation is desired
  • Varying stresses are expected on teeth
  • High hardness is desired on teeth
  • Variable speed operation is desired
Answer: High hardness is desired on teeth
Q5 | Which one of the following cannot be used as a moulding material
  • Wood
  • Cement
  • Glass
  • Paper
  • Rubber
Answer: Glass
Q6 | Severe quenching may lead to
  • superficial hardness
  • blow holes
  • formation of cracks
  • warping
  • Parting off
Answer: formation of cracks
Q7 | Steel balls are required in large quantities. Which process would you select for the manufacture?
  • Cold heading
  • Turning on a Capstan of Turret lathe
  • Casting
  • Turning on a lathe
  • Turning on a automatic lathe
Answer: Cold heading
Q8 | A half nut is
  • A double start nut for a quick shift
  • Mechanism that locks the lathe carriage to the lead screw for thread cutting
  • Nut with half the standard pitch
  • Damaged nut
  • Nut manufactured in parts
Answer: Mechanism that locks the lathe carriage to the lead screw for thread cutting
Q9 | Out of the following materials which one will have lowest temperature of freezing?
  • Copper
  • Zinc
  • Gold
  • Lead
  • Tungsten
Answer: Lead
Q10 | Trepanning tool is used on
  • Milling machine
  • Planers
  • Lathes
  • Power presses
  • Cold heading machine
Answer: Planers
Q11 | A blunt tool is used in
  • knurling
  • piercing
  • Parting off
  • gear shaving
  • hot spinning.
Answer: hot spinning.
Q12 | Suitable change wheels for cutting 17 T.P.I. on 4 T.P.I. lead screw lathe are
  • 10 to 65
  • 15 to 85
  • 20 to 85
  • 30 to 105
  • None of the above
Answer: 20 to 85
Q13 | For the measurement of velocity, the transduction method could be
  • Capacitive
  • Inductive
  • Magneto-electric
  • Photoelectric
  • Any of the above
Answer: Any of the above
Q14 | Burnishing operation is done with the help of
  • Abrasives
  • Dielectrics
  • Balls
  • Lubricating oils
  • Any of the above
Answer: Balls
Q15 | Which of the following process connot be carried out on lathe machine?
  • Notching
  • Riveting
  • Punching
  • Blanking
  • All of the above
Answer: Riveting
Q16 | Which of the following operations is known as 'sweating'
  • Tinning the two surfaces to be joined, applying flux and heating
  • Heating two surfaces to be joined, to the high temperature in presence of flux
  • Heating two surfaces at low temperature
  • Joining of two surfaces without use of flux
  • None of the above
Answer: Tinning the two surfaces to be joined, applying flux and heating
Q17 | The stake used for making conical shapes is known as
  • Parting off
  • Hatchet stake
  • Funnel stake
  • Moon stake
Answer: Funnel stake
Q18 | A special form of piercing in which the entire contour is not cut, is known as
  • Lancing
  • Notching
  • Trimming
  • Slotting
  • None of the above
Answer: Lancing
Q19 | Carbon tool steels generally loose their hardness above
  • 50?C
  • 200?C
  • 100?C
  • Parting off
  • 125?C
Answer: 200?C
Q20 | Loading of grinding wheel occurs when
  • Parting off
  • part of grinding surface gives way
  • long cracks develop on grinding wheel from centre to outer diameter
  • abrasive grains become clogged with particles of metal being ground
  • follow cavities are formed on the surface of grinding wheel
Answer: abrasive grains become clogged with particles of metal being ground
Q21 | Preferred numbers are the numbers in
  • arithmetic progression
  • Parting off
  • harmonic progression
  • Logarithmic progression
  • geometric progression
Answer: geometric progression
Q22 | Surveying tapes are generally made of
  • Invar
  • Nichrome
  • Constantan
  • Nicheloy
  • Muntz metal
Answer: Invar
Q23 | In gas welding, the welding rods of 30 mm diameter are available. What will be the maximum thickness of material that can be welded with this rod?
  • 3 mm
  • 25 mm
  • 12 mm
  • 6 mm
  • 30 mm
Answer: 3 mm
Q24 | The temperature scanning system are used
  • Where temperature control at a point is important
  • Where temperature difference between two points is important
  • Where system is capable of working without temperature control
  • Where monitoring of a relatively large number of temperatures is needed
  • None of the above
Answer: Where monitoring of a relatively large number of temperatures is needed
Q25 | A good cutting action is indicated by
  • High cutting ratio
  • Low cutting ratio
  • Low chip reduction coefficient
  • None of the above
  • Bakelite
Answer: Low cutting ratio
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