Engineering :: Production Engineering
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241. |
The bonding of a rubber sheet with a metal is done by |
A. |
Welding |
B. |
High frequency dielectric heating |
C. |
Induction welding |
D. |
Melting rubber in metal |
E. |
Adhesive bonding |
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Answer: Option E
Explanation:
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242. |
The surface roughness on a drawing is represented by |
A. |
Circle |
B. |
Square |
C. |
Zig-zag lines |
D. |
Triangle |
E. |
Curve |
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Answer: Option D
Explanation:
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243. |
During continuous chip formation the maximum heat is taken away by |
A. |
Tool |
B. |
Chip |
C. |
Coolant |
D. |
Work piece |
E. |
Depends on velocity of cutting |
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Answer: Option E
Explanation:
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244. |
In centreless grinding the regulating wheel is inclined at an angle |
A. |
1 - 8? |
B. |
9-15? |
C. |
15 - 18? |
D. |
12 - 24? |
E. |
25 - 35? |
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Answer: Option A
Explanation:
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245. |
The surface speed of regulating wheel in case of centreless grinding is |
A. |
15 - 75 M/min |
B. |
100 - 500 M/min |
C. |
500 - 800 M/min |
D. |
1000 - 1500 M/min |
E. |
1500 - 1800 M/min |
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Answer: Option A
Explanation:
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246. |
The surface speed of grinding wheel in case of centreless grinding is |
A. |
15 - 75 M/min |
B. |
100 - 500 M/min |
C. |
500 - 800 M/min |
D. |
1000 - 1500 M/min |
E. |
1500 - 1800 M/min |
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Answer: Option E
Explanation:
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247. |
Ball bearing races are |
A. |
Turned |
B. |
Ground |
C. |
Nickel plated |
D. |
Buffed |
E. |
Lapped |
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Answer: Option E
Explanation:
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248. |
A point angle of 135 - 150? on twist drills is used for drilling |
A. |
Mild steel |
B. |
Cast iron |
C. |
Bakelite |
D. |
Plastics |
E. |
Hard steels and nickel alloys |
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Answer: Option E
Explanation:
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249. |
Shear angle varies with |
A. |
Cutting speed |
B. |
Feed |
C. |
Depth of cut |
D. |
Material of tool |
E. |
Work piece materials and tool geometry |
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Answer: Option E
Explanation:
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250. |
In Rockwell test for hardness on B scale |
A. |
A steel ball is used |
B. |
A diamond cone is used |
C. |
A steel hammer is used |
D. |
A plastic hammer is used |
E. |
A mechanite ball is used |
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Answer: Option A
Explanation:
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