Manufacturing Processes (3141908) MCQs

MCQs of Basic Machine Tools and Metal Cutting Principles

Showing 81 to 90 out of 100 Questions
6 7 8 9 10
81.
Crater wear is predominant in
(a) carbon tool steels
(b) tungsten carbide tools
(c) high-speed steel tools
(d) ceramic tools
Answer:

Option (b)

82.
In machining metals, chips break due to __________ of work material.
(a) toughness
(b) ductility
(c) elasticity
(d) work hardening
Answer:

Option (d)

83.
The binding material used in cemented carbide tools is
(a) tungsten
(b) chromium
(c) silicon
(d) cobalt
Answer:

Option (d)

84.
The angle between the shear plane and __________ is called the shear angle.
(a) work surface
(b) tool face
(c) normal to the tool axis
(d) flank
Answer:

Option (a)

85.
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
(a) carbide, ceramic, cermet, borazon
(b) ceramic, carbide, borazon, cermet
(c) cermet, carbide, ceramic, borazon
(d) borazon, ceramic, carbide, cermet
Answer:

Option (c)

86.
Larger end cutting edge angle __________ tool life.
(a) increases
(b) decreases
(c) does not effect
(d) none of the above
Answer:

Option (a)

87.
which angle on tools is provided to control of chip flow?
(a) clearance angle
(b) relief angle
(c) lip angle
(d) side rack angle
Answer:

Option (d)

88.
The average cutting speed for turning brass with a high speed steel tool is
(a) 15 to 19 m/min
(b) 25 to 31 m/min
(c) 60 to 90 m/min
(d) 90 to 120 m/min
Answer:

Option (c)

89.
The lip angle of a single point tool is usually
(a) 20° to 40°
(b) 40° to 60°
(c) 60° to 80°
(d) none of these
Answer:

Option (c)

90.
The rake angle required to machine brass by high-speed steel tool is
(a) 0
(b) 20
(c) 40
(d) 110
Answer:

Option (a)

Showing 81 to 90 out of 100 Questions
6 7 8 9 10