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MCQs

Total Questions : 408 | Page 1 of 41 pages
Question 1. A drill considered as a cutting tool having zero rake, is known as a
  1.    flat drill
  2.    straight fluted drill
  3.    parallel shank twist drill
  4.    tapered shank twist drill
 Discuss Question
Answer: Option B. -> straight fluted drill
Answer: (b).straight fluted drill
Question 2. Which of the following statement is wrong about ultra-sonic machining?
  1.    It is best suited for machining hard and brittle materials.
  2.    It cuts materials at very slow speeds.
  3.    It removes large amount of material.
  4.    It produces good surface finish.
 Discuss Question
Answer: Option C. -> It removes large amount of material.
Answer: (c).It removes large amount of material.
Question 3. In oblique cutting system, the maximum chip thickness occurs at the middle.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> Incorrect
Answer: (b).Incorrect
Question 4. Larger end cutting edge angle __________ tool life.
  1.    increases
  2.    decreases
  3.    does not effect
  4.    None of these
 Discuss Question
Answer: Option B. -> decreases
Answer: (b).decreases
Question 5. The lead screw of a lathe has __________ threads.
  1.    single start
  2.    double start
  3.    multi-start
  4.    any one of these
 Discuss Question
Answer: Option A. -> single start
Answer: (a).single start
Question 6. The factor responsible for the formation of continuous chips with built up edge is
  1.    low cutting speed and large rake angle
  2.    low cutting speed and small rake angle
  3.    high cutting speed and large rake angle
  4.    high cutting speed and small rake angle
 Discuss Question
Answer: Option B. -> low cutting speed and small rake angle
Answer: (b).low cutting speed and small rake angle
Question 7. The abrasive recommended for grinding materials of high tensile strength is
  1.    silicon carbide
  2.    aluminium oxide
  3.    sand stone
  4.    diamond
 Discuss Question
Answer: Option B. -> aluminium oxide
Answer: (b).aluminium oxide
Question 8. In centreless grinding, the surface speed of regulating wheel is
  1.    5 to 15 m/min
  2.    15 to 60 m/min
  3.    60 to 90 m/min
  4.    90 to 120 m/min
 Discuss Question
Answer: Option B. -> 15 to 60 m/min
Answer: (b).15 to 60 m/min
Question 9. In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
  1.    high metal removal rate
  2.    dry machining
  3.    use of soft cutting tool
  4.    surface finish
 Discuss Question
Answer: Option D. -> surface finish
Answer: (d).surface finish
Question 10. An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is
  1.    cutting speed
  2.    feed rate
  3.    shear angle
  4.    tool geometry
 Discuss Question
Answer: Option C. -> shear angle
Answer: (c).shear angle

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