Production and Industrial Engineering Question set 9

Production and Industrial Engineering Question set 9
Question:-
Option (A)
Rake angle
Option (B)
Clearance angle
Option (C)
Lip angle
Option (D)
point angle
Correct Option:
C
Question Solution:
Lip angle is defined as the angle between the face and flank of the tool

Question:-
Option (A)
Both A and R are individually true and R is the correct explanation of A
Option (B)
Both A and R are individually true but R is not the correct explanation A
Option (C)
A is true but R is false
Option (D)
A is false but R is true
Correct Option:
D
Question Solution:
Machining of a material depends upon the property of material by which the ease with which it can cut to give better surface tool life obtained. Force and power requirement, chip control (As for chip control, long and itself). For brass, the chip produced id discontinuous. So no use of chip breaker
Question:-
Option (A)
Both A and R are individually true and R is the correct explanation of A
Option (B)
Both A and R are individually true but R is not the correct explanation A
Option (C)
A is true but R is false
Option (D)
A is false but R is true
Correct Option:
B
Question Solution:
Diamond tools have low tool-chip friction high wear resistance and ability to maintain a sharp cutting edge and are used for high speed machining of non ferrous material (Ai, Cu, brass of bronze or where silicon content is more). Non ferrous material generally have continuous chip formation. Feed rate is kept low
While machining ferrous material they have strong chemical affinity for it so not recommended for ferrous material
Question:-
Option (A)
Carbon steel tools
Option (B)
Tungsten carbide tools
Option (C)
High speed steel tools
Option (D)
ceramic tools
Correct Option:
B
Question Solution:
Tungsten carbide tool: because when the interface temperature is high then the carbides disintegrate (wc ® w + c) and carbon diffuses to the softer matrix of machining part, this phenomena reduces the strength of tool and after some time it dislodges it
Question:-
Option (A)
Increases in the effective rake angle and decreases in the effective clearance angle
Option (B)
Increases in both effective rake angle and effective clearance angle
Option (C)
Decreases in the effective rake angle and an increases in the effective clearance angle
Option (D)
Decreases in both effective rake angle and effective clearance angle
Correct Option:
C
Question Solution:
The effect of setting a boring tool above centre height leads to an decreases in rake angle and increase in effective clearance angle
Question:-
Option (A)
Radial force
Option (B)
Tangential force
Option (C)
Axial force
Option (D)
Frictional force
Correct Option:
B
Question Solution:
Tangential force because power consumption is FcV (cutting force x cutting velocity)