Manufacturing Processes (3141908) MCQs

MCQs of Grinding Machines and Abrasives

Showing 51 to 60 out of 63 Questions
3 4 5 6 7
51.
Which of the following grinding wheel would be more economical for grinding of hard workpiece?
(a) Soft grinding wheel
(b) Hard grinding wheel
(c) Both hard and soft grinding wheel
(d) None of the mentioned
Answer:

Option (a)

52.
Which of the following grinding wheel would be more economical for grinding of soft workpiece?
(a) Soft grinding wheel
(b) Hard grinding wheel
(c) Both hard and soft grinding wheel
(d) None of the mentioned
Answer:

Option (b)

53.
Which of the following grinding wheel would be more economical for grinding of hard workpiece?
(a) Open structure grinding wheel
(b) Dense structure wheel
(c) Both dense and open structure grinding wheel
(d) None of the mentioned
Answer:

Option (b)

54.
Which of the following grinding wheel would be more economical for grinding of soft work piece?
(a) Open structure grinding wheel
(b) Dense structure wheel
(c) Both dense and open structure grinding wheel
(d) None of the mentioned
Answer:

Option (a)

55.
The material removal rate of the grinding process in comparison to the material removal rate in facing on a lathe is
(a) small
(b) large
(c) same
(d) can’t say about material removal rate
Answer:

Option (a)

56.
The material removal rate in grinding operation is small due to
(a) negative rake angle
(b) positive rake angle
(c) zero rake angle
(d) material removal rate does not depend on the rake angle
Answer:

Option (a)

57.
The material removal rate in grinding operation is small due to
(a) only a small portion of abrasives are involved in cutting
(b) positive rake angle
(c) zero rake angle
(d) material removal rate does not depend on the rake angle
Answer:

Option (a)

58.
The material removal rate in grinding operation is small due to
(a) a large portion of abrasives are involved in cutting
(b) positive rake angle
(c) due to temperature rise during grinding
(d) material removal rate does not depend on the rake angle
Answer:

Option (c)

59.
Grinding ratio generally lies between
(a) 0.5-10
(b) 100-200
(c) 1000-200
(d) 30-40
Answer:

Option (a)

60.
Grinding wheel is specified as “A 46 K 5 B 17”. The grain size of a wheel will be
(a) coarse
(b) medium
(c) fine
(d) very Fine
Answer:

Option (b)

Showing 51 to 60 out of 63 Questions
3 4 5 6 7