Manufacturing Processes (3141908) MCQs

MCQs of Grinding Machines and Abrasives

Showing 31 to 40 out of 63 Questions
1 2 3 4 5 6
31.
The abrasive recommended for grinding materials of low tensile strength is
(a) silicon carbide
(b) aluminum oxide
(c) sandstone
(d) diamond
Answer:

Option (a)

32.
The hard 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 (c)

33.
Surface grinding is done to produce
(a) tapered surface
(b) flat surface
(c) internal cylindrical holes
(d) all of these
Answer:

Option (b)

34.
The method of grinding used to produce internal cylindrical holes and tapers is
(a) internal cylindrical grinding
(b) form grinding
(c) external cylindrical grinding
(d) surface grinding
Answer:

Option (a)

35.
Crack in grinding wheel is developed due to
(a) high temperature developed at the contact of the wheel face and work
(b) grinding hard work
(c) low speed of the wheel
(d) high speed of the wheel
Answer:

Option (d)

36.
The aluminum oxide abrasive is chiefly used for grinding
(a) high-speed steel
(b) carbon steel
(c) wrought iron
(d) all of these
Answer:

Option (d)

37.
In centreless grinders, the regulating wheel is inclined at
(a) 0° to 8°
(b) 9° to 15°
(c) 16° to 20°
(d) 21° to 25°
Answer:

Option (a)

38.
A fine-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 (a)

39.
In transverse 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 (a)

40.
The process of improving the cutting action of the grinding wheel is called
(a) truing
(b) dressing
(c) facing
(d) clearing
Answer:

Option (b)

Showing 31 to 40 out of 63 Questions
1 2 3 4 5 6