Manufacturing Engineering Multiple Choice Questions on “Surface Finishing Operations”.
1. Which of the following is a surface finishing operation?
a) Drilling
b) Honing
c) Milling
d) Turning
Answer: b
Clarification: Honing is a surface finishing operation used to give better surface finish and have very small material removal rate.
2. Which of the following is a surface finishing operation?
a) Drilling
b) Lapping
c) Milling
d) Turning
Answer: b
Clarification: Lapping is a surface finishing operation used to give better surface finish and have very small material removal rate.
3. Which of the following process has the lowest cutting speed?
a) Drilling
b) Honing
c) Milling
d) Turning
Answer: b
Clarification: Honing is a surface finishing operation and hence it is generally performed at low speed.
4. Which of the following process has the lowest cutting speed?
a) Slotting
b) Lapping
c) Milling
d) Reaming
Answer: b
Clarification: Lapping is a surface finishing operation and hence it is generally performed at low speed.
5. Which of the following process have the lowest metal removal rate?
a) Drilling
b) Reaming
c) Milling
d) Lapping
Answer: b
Clarification: Lapping is a surface finishing operation and hence have low metal removal rate.
6. Which of the following process have the lowest metal removal rate?
a) Drilling
b) Reaming
c) Milling
d) Honing
Answer: d
Clarification: Honing is a surface finishing operation and hence have low metal removal rate.
7. Which of the following is the correct grain size range of abrasive grains for honing stones?
a) 800 grit to 1000 grit
b) 5 grit to 10 grit
c) 50 grit to 60 grit
d) 80 grit to 600 grit
Answer: d
Clarification: 80 grit to 600 grit is the correct grain size range of abrasive grains for honing stones.
8. For practical honing conditions, cross hatch angle in degrees is generally taken in the range of
a) 20 to 40
b) 40 to 50
c) 50 to 60
d) 10 to 15
Answer: a
Clarification: Cross hatch angle is generally taken from 20 degrees to 40 degrees.
9. During a honing process, reciprocating speed of honing tool was 9m/min with a rotary speed of 25m/min. Cross hatch angle in degrees is equal to
a) 40
b) 35
c) 30
d) 25
Answer: a
Clarification: tan(X) = (Reciprocating speed in m/min)/ (Rotary speed in m/min). Cross hatch angle = 2*X, where ‘X’ is the cross hatch angle.
10. During a honing process, reciprocating speed of honing tool was 9m/min with a cross hatch angle of 30 degree. Rotary speed in m/min is equal to
a) 33.58
b) 35
c) 30
d) 25.23
Answer: a
Clarification: tan(X) = (Reciprocating speed in m/min)/ (Rotary speed in m/min). Cross hatch angle = 2*X, where ‘X is the cross hatch angle.