Production Engineering Set 24

Mechanical Engineering

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This set of Production Engineering Multiple Choice Questions & Answers (MCQs) focuses on Production Engineering Set 24

Q1 | Permissible percentage of moisture in dry woods for pattern making is
  • Upto 25 percent
  • 1 - 2 percent
  • Upto 15 percent
  • 2 - 5 percent
  • Zero percent
Answer: Upto 15 percent
Q2 | When silicon is added in the cast iron 13-17 percent is given an alloy which is
  • It is not possible to have such high percentage of silicon
  • Very soft
  • Easily machinable
  • Acid and corrosion resistant
  • Powder casted
Answer: Easily machinable
Q3 | Which of the following statements correct?
  • Rockwell scale B in used for hard metals
  • Rockwell scale C is used for hard metals
  • Rockwell scale C is used for soft metals
  • Rockwell scale A is used for hard metals
  • None of the above
Answer: Rockwell scale C is used for hard metals
Q4 | The back rake angle of HSS single point cutting too will be zero while machining
  • Hard materials
  • Cast iron with high carbon percentage
  • Mild steel without collant
  • Brass
  • Brittle materials
Answer: Brass
Q5 | Which of the following is located within the bolster?
  • Cushion
  • Ram
  • Bed plate
  • All of the above
  • Parting off
Answer: Cushion
Q6 | Which of the following is not a fine finishing operation?
  • Grinding
  • Honing
  • Buffing
  • Lapping
  • Tumbling
Answer: Tumbling
Q7 | Electronic components are often joined by
  • Sport welding
  • Seam welding
  • Brazing
  • Adhesive
  • Soldering
Answer: Soldering
Q8 | Two 12 mm plates are to are welded with the help of a 8 gauge electrode. What will be the current requirement
  • 75 amps
  • 100 amps
  • 125 amps
  • 130 amps
  • 150 amps
Answer: 150 amps
Q9 | In which type of welding molten metal is poured for joining the metals
  • Gas welding
  • Arc welding
  • MIG
  • Thermit welding
  • TIG
Answer: Thermit welding
Q10 | The tool signature comprises
  • 6 elements
  • 7 elements
  • 5 elements
  • 8 elements
  • 9 elements
Answer: 7 elements
Q11 | Gear cutters are specified by
  • cutter number
  • cutter diameter
  • no. of teeth
  • Any of the above
  • Parting off
Answer: cutter number
Q12 | While specifying a grinding wheel, which of the following is the optional specification?
  • Structure
  • Gram size
  • Grade
  • Type of bond
  • Parting off
Answer: Structure
Q13 | The value of coefficient of friction expected in case of brake lining of steel wheel drum is
  • 0.1 to 0.3
  • 1
  • 0.1
  • 0.8 to 0.95
  • 0.4 to 0.5
Answer: 0.4 to 0.5
Q14 | Steady rest is
  • Used during thready cutting only
  • Used when a lathe is not provided with foundations
  • Used while turning unsymmetrical objects
  • An additional support provided for long jobs
  • Used when a lathe is subject to vibrations
Answer: An additional support provided for long jobs
Q15 | Sintered tungsten carbides can be machined by
  • Electro machining process
  • Explosive forming
  • Grinding only
  • Diamond tools only
  • Conventional processes
Answer: Electro machining process
Q16 | The major function performed by information handling system is
  • Automatic measuring
  • Automatic logging
  • Alarm monitoring
  • Data and alarm scanning
  • All of the above
Answer: Alarm monitoring
Q17 | Carbon content of grey iron is generally
  • 1 - 2 percent
  • 3-3.5 percent
  • 2.5-3 percent
  • 4.5 percent
  • 2-2.5 percent
Answer: 3-3.5 percent
Q18 | The clearance between the tips of a spark plug is checked by
  • Vernier caliper
  • Wire gauge
  • Feeler gauge
  • Delatometer
  • None of the above
Answer: Feeler gauge
Q19 | Tumbling is done to
  • To plate the surface
  • Clean the surface of small parts
  • To break the material into pieces
  • Stress relieve the components
  • Get surface finish
Answer: Clean the surface of small parts
Q20 | Which of the following material is cut at the lowest cutting speed?
  • Aluminium
  • Brass
  • Mild steel
  • Copper
  • High carbon steel
Answer: High carbon steel
Q21 | The included angle of a lathe centre is generally
  • 45?
  • 30?
  • 60?
  • 22
  • 15?
Answer: 60?
Q22 | Which one of the following materials will have highest cutting speed?
  • Bronze
  • Aluminium
  • Brass
  • Cast iron
  • Tool steel
Answer: Aluminium
Q23 | Hack-saw blades having the number of teeth as given below are available. Which one would you chose for cutting brass
  • 18 teeth per inch
  • 14 teeth per inch
  • 31 teeth per inch
  • 40 teeth per inch
  • 24 teeth per inch
Answer: 24 teeth per inch
Q24 | Gang milling is
  • Process in which two or more cutters are used simultangeously
  • High speed milling
  • Milling operation combined with turning
  • Process of cutting gears
  • Milling process for generating hexagonal surfaces
Answer: Process in which two or more cutters are used simultangeously
Q25 | Which machine can be used for grinding the ball bearing outer races
  • Surface grinding machine
  • Magnetic chuck grinding machine
  • Universal grinding machine
  • Centreless grinding machine
  • Cylindrical grinding machine
Answer: Centreless grinding machine
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