Production Engineering Set 23

Mechanical Engineering

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This set of Production Engineering Multiple Choice Questions & Answers (MCQs) focuses on Production Engineering Set 23

Q1 | High helix drills are used for deep hole drilling in
  • Aluminium
  • Plastics
  • Rubber (hard)
  • Marble
  • Bakelite
Answer: Aluminium
Q2 | Choose incorrect statement. With increasing cutting speed
  • machining cost decreases
  • tool cost increases
  • total cost decreases
  • None of the above
  • Parting off
Answer: total cost decreases
Q3 | Panes are used
  • Make the timber surfaces uniform and smooth
  • Making holes in the Timber piece
  • Chamfering the edges
  • Parting off
  • Measure the dimensions
Answer: Make the timber surfaces uniform and smooth
Q4 | The main constituent of moulding sand is
  • Hydrocarbons
  • Clay
  • Silica
  • Graphite
  • Carbon
Answer: Silica
Q5 | An accurate lathe in India is identified as
  • Mark I
  • Grade I
  • Precision I
  • Agmark I
  • Accurate I
Answer: Grade I
Q6 | Indexing for 107 divisions can be done by
  • Angular indexing
  • Simple indexing
  • Differential indexing
  • Compound indexing
  • Compound differential indexing
Answer: Differential indexing
Q7 | Which of the following process provides continuous welds between two sheets?
  • Projection welding
  • Spot welding
  • Seam welding
  • All of the above
  • Parting off
Answer: Seam welding
Q8 | In thermit welding, heat is generated by
  • Combustion of gases
  • Electric arc
  • Reaction of oxygen with metal
  • Chemical reaction involving finely divided aluminium and iron oxide
  • None of the above
Answer: Chemical reaction involving finely divided aluminium and iron oxide
Q9 | The common ratio for geometrical speeds in geometrical progression lies between
  • 2.0 to 5.0
  • 5.0 to 10.0
  • 1.0 to 2.0
  • 0.1 to 0.5
  • 0.5 to 0.9
Answer: 1.0 to 2.0
Q10 | Wipping is the process of
  • Cleaning the welded surface after the welding operation is over
  • Applying flux during welding process
  • Connecting load pipes by soldering alloy
  • Low temperature welding
  • None of the above
Answer: Connecting load pipes by soldering alloy
Q11 | The term CLA (Centre Line Average) is used in connection with
  • Surface hardness
  • Stresses in a component
  • Average speed of a gear
  • Surface finish
  • Sharpness of a cutting tool
Answer: Surface finish
Q12 | A piercing operation in which the entire contour is not cut, is known as
  • lancing
  • Parting off
  • notching
  • broaching
  • bumishing
Answer: lancing
Q13 | Which variety of copper has the highest purity?
  • Best select copper
  • Parting off
  • High conductivity copper
  • Arsenical copper
  • Deoxidised copper
Answer: High conductivity copper
Q14 | Magna flux is
  • An instrument using ultrasonic techniques for crack detection
  • An instrument used for precision measurements using magnetism and flux density
  • An instrument used for inspection of weldings
  • A non-destructive inspection technique that makes use of magnetic field and magnetic particles to locate flaw in materials
  • Intensity of X-rays required corresponding to thickness of a job for determination of defects.
Answer: A non-destructive inspection technique that makes use of magnetic field and magnetic particles to locate flaw in materials
Q15 | A mandrel is
  • Auxiliary chuck used on lathe for holding small loads
  • None of above
  • A tapered gauge used for inspection of tapered holes
  • Is used in lathe work to hold castings
  • A slightly tapered hardened steel shaft that supports works which cannot be supported otherwise
Answer: A tapered gauge used for inspection of tapered holes
Q16 | During soldering operation, the main function of solder iron is to
  • Heat the metals to be jointed
  • Heat the solder
  • Heat the flux
  • Remove impurities
  • All of the above
Answer: Heat the solder
Q17 | Dielectric is essentially required in
  • CLM process
  • PMF process
  • EMP process
  • EDM process
  • ECM process
Answer: EDM process
Q18 | Core chaplet is
  • used to provide a supprt to the core
  • a surface coating on core so that core material does not fuse with the casting
  • Parting off
  • a core dressing operation
  • used to make core surface smooth
Answer: used to provide a supprt to the core
Q19 | Drilling operation is an example of
  • Multipoint cutting
  • Simple cutting
  • Oblique cutting
  • Orthogonal cutting
  • None of the above
Answer: Oblique cutting
Q20 | While machining a brass casting on a lathe, the type of chuck used is
  • Face plate
  • Collect chuck
  • Four jaw chuck
  • Three jaw chuck
  • Magnetic chuck
Answer: Four jaw chuck
Q21 | For making complicated contours on carbide tools, which of the following process is preferred?
  • Electro chemical milling
  • Laser machining
  • Plasma arc machining
  • Electro discharge machining
  • Diamond tool machining
Answer: Electro discharge machining
Q22 | For the same capacity which of the following process has the highest capital cost?
  • Laser beam machining
  • Electro chemical machining
  • Electro discharge machining
  • Abrasive jet machining
  • Plasma arc machining
Answer: Electro chemical machining
Q23 | An ideal tool material is the one which
  • has very long life
  • has same life at all cutting speeds
  • produces no heat during cutting
  • None of the above
  • Parting off
Answer: has same life at all cutting speeds
Q24 | A hot chisel is one which is
  • Spherical surfaces
  • None of these
  • Used to cut cold materials
  • Used to cut red hot materials
  • Red hot
Answer: Used to cut red hot materials
Q25 | Chisels used for metal cutting are
  • Hardened
  • Annealed
  • Hardened and tempered
  • Annealed, hardened and tempered
  • None of the above
Answer: Annealed, hardened and tempered
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