Manufacturing Processes (3141908) MCQs

MCQs of Grinding Machines and Abrasives

Showing 11 to 20 out of 63 Questions
1 2 3 4 5 6
11.
In order to grind soft material
(a) a coarse-grained grinding wheel is used
(b) a fine-grained grinding wheel is used
(c) a medium-grained grinding wheel is used
(d) any one of these
Answer:

Option (a)

12.
In centreless grinders, the maximum angular adjustment of the regulating wheel is
(a) 5°
(b) 10°
(c) 15°
(d) 20°
Answer:

Option (b)

13.
The grinding operation is a
(a) shaping operation
(b) forming operation
(c) surface finishing operation
(d) dressing operation
Answer:

Option (c)

14.
The snag grinding is done
(a) to produce a good surface finish and a high degree of accuracy
(b) to remove a considerable amount of metal without regard to the accuracy of the finished surface
(c) to grind exterior cylindrical surfaces
(d) any one of the above
Answer:

Option (b)

15.
A coarse-grained grinding wheel is used to grind
(a) hard and brittle materials
(b) soft and ductile materials
(c) hard and ductile materials
(d) soft and brittle materials
Answer:

Option (b)

16.
The soft grade grinding wheels are denoted by the letters
(a) A to H
(b) I to P
(c) Q to Z
(d) A to P
Answer:

Option (a)

17.
An open structure of a grinding wheel is used for
(a) soft materials
(b) tough materials
(c) ductile materials
(d) all of these
Answer:

Option (d)

18.
Glazing in grinding wheels takes place when the
(a) the wheel is too hard or wheel revolves at a very high speed
(b) the wheel is too soft or wheel revolves at a very slow speed
(c) the wheel is too hard and wheel revolves at very slow speed
(d) the wheel is too soft and wheel revolves at a very high speed
Answer:

Option (a)

19.
In plunge grinding
(a) the work is reciprocated as the wheel feeds to produce cylinders longer than the width of the wheel face
(b) the work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of the wheel face
(c) the work is reciprocated as the wheel feeds to produce cylinders shorter than the width of the wheel face
(d) the work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of the wheel face
Answer:

Option (b)

20.
The size of abrasive grain required in a grinding wheel depends upon the
(a) amount of material to be removed
(b) the hardness of the material being ground
(c) finish desired
(d) all of these
Answer:

Option (b)

Showing 11 to 20 out of 63 Questions
1 2 3 4 5 6