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MCQs

Total Questions : 408 | Page 2 of 41 pages
Question 11. The angle between the shear plane and __________ is called shear angle.
  1.    work surface
  2.    tool face
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> work surface
Answer: (a).work surface
Question 12. In machining soft materials, a tool with negative relief angle is used.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 13. The example of snag grinding is
  1.    trimming the surface left by sprues and risers on castings
  2.    grinding the parting line left on castings
  3.    removing flash on forgings
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 14. Which of the following parameters influence the axial feed rate in centreless grinding?
  1.    Regulating wheel diameter
  2.    Speed of the regulating wheel
  3.    Angle between the axes of grinding and regulating wheels
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 15. The lathe spindles are usually made hollow and provided with
  1.    internal taper
  2.    external taper
  3.    internal and external taper
  4.    no taper
 Discuss Question
Answer: Option A. -> internal taper
Answer: (a).internal taper
Question 16. The top and sides of the table of a shaper usually have
  1.    L-type slots
  2.    T-type slots
  3.    I-type slots
  4.    any one of these
 Discuss Question
Answer: Option B. -> T-type slots
Answer: (b).T-type slots
Question 17. For softer materials, the point angle of the drill is kept
  1.    equal to 118°
  2.    less than 118°
  3.    more than 118°
  4.    any one of these
 Discuss Question
Answer: Option B. -> less than 118°
Answer: (b).less than 118°
Question 18. The binding material used in cemented carbide tools is
  1.    tungsten
  2.    chromium
  3.    silicon
  4.    cobalt
 Discuss Question
Answer: Option D. -> cobalt
Answer: (d).cobalt
Question 19. When the backgear is engaged in a backgeared headstock, the spindle speed reduces considerably.
  1.    Agree
  2.    Disagree
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Agree
Answer: (a).Agree
Question 20. In machining metals, chips break due to __________ of work material.
  1.    toughness
  2.    ductility
  3.    elasticity
  4.    work hardening
 Discuss Question
Answer: Option D. -> work hardening
Answer: (d).work hardening

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