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MCQs

Total Questions : 408 | Page 40 of 41 pages
Question 391. A twist drill is a
  1.    side cutting tool
  2.    front cutting tool
  3.    end cutting tool
  4.    none of these
 Discuss Question
Answer: Option C. -> end cutting tool
Answer: (c).end cutting tool
Question 392. A push broach as compared to pull broach
  1.    has less number of teeth
  2.    is short and stocky
  3.    removes less material for each pass of the tool
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 393. The rake angle required to machine brass by high speed steel tool is
  1.    0°
  2.    10°
  3.    20°
  4.    -10°
 Discuss Question
Answer: Option A. -> 0°
Answer: (a).0°
Question 394. The process of improving the cutting action of the grinding wheel is called
  1.    truing
  2.    dressing
  3.    facing
  4.    clearing
 Discuss Question
Answer: Option B. -> dressing
Answer: (b).dressing
Question 395. In electro-discharge machining, the tool is connected to cathode.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 396. The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is __________ cutting speed for drilling mild steel with high speed steel drills.
  1.    equal to
  2.    less than
  3.    more than
  4.    None of these
 Discuss Question
Answer: Option A. -> equal to
Answer: (a).equal to
Question 397. The effect of setting a boring tool above centre height leads to
  1.    increase in the effective rake angle and a decrease in the effective clearance angle
  2.    increase in both effective rake angle and effective clearance angle
  3.    decrease in the effective rake angle and an increase in the effective clearance angle
  4.    decrease in both effective rake angle and effective clearance angle
 Discuss Question
Answer: Option A. -> increase in the effective rake angle and a decrease in the effective clearance angle
Answer: (a).increase in the effective rake angle and a decrease in the effective clearance angle
Question 398. Which of the following statement is correct about nose radius?
  1.    It improves tool life
  2.    It improves the surface finish
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 399. Glazing in grinding wheels __________ cutting capacity.
  1.    has no effect on
  2.    increase
  3.    decrease
  4.    None of these
 Discuss Question
Answer: Option C. -> decrease
Answer: (c).decrease
Question 400. In oblique cutting system, the cutting edge of the tool
  1.    may clear the width of the workpiece
  2.    may or may not clear the width of the workpiece
  3.    may not clear the width of the workpiece
  4.    should always clear the width of the workpiece
 Discuss Question
Answer: Option C. -> may not clear the width of the workpiece
Answer: (c).may not clear the width of the workpiece

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