Engineering :: Production Engineering
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51. |
Kind of tools used to undercut corners on a job that is to be hardened and ground is |
A. |
Parting tool |
B. |
Roundnose tool |
C. |
Vee shaped tool |
D. |
Knurling tool |
E. |
Form tool |
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Answer: Option B
Explanation:
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52. |
In a turret lathe a pre-selector is a device |
A. |
That is used to select in the job prior to loading |
B. |
That is used to decide the operation to be done on a job prior to a specific operation |
C. |
That is used to pre-select the spindle speed for the next operation in progress |
D. |
Used for feeding bar to chuck |
E. |
None of above |
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Answer: Option C
Explanation:
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53. |
Brown and sharpe taper is generally used in |
A. |
Lathes |
B. |
Drills |
C. |
Shapers |
D. |
Milling machines |
E. |
Broaching machines |
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Answer: Option D
Explanation:
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54. |
Taper gererally used in lathes now-a-days is |
A. |
Brown and sharpe |
B. |
Morse |
C. |
Jarno |
D. |
Parkinson |
E. |
None of above |
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Answer: Option B
Explanation:
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55. |
Which one of the following methods cannot be used for turning internal tapers? |
A. |
Tail stock offset |
B. |
Cross slide |
C. |
Compound slide |
D. |
All of the above |
E. |
None of the above |
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Answer: Option A
Explanation:
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56. |
In drilling operation if the drill point is outside the drill axis, the effect on the drilled hole will be |
A. |
The hole will become too large |
B. |
The hole will become elliptical |
C. |
The drilled hole will be normal |
D. |
The hole will be rough |
E. |
The hole will be smooth |
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Answer: Option A
Explanation:
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57. |
If a drill has different lengths of cutting edges |
A. |
The drilled hole will not be circular |
B. |
Cutting edge will become blunt rapidly |
C. |
Cutting edge will be over size |
D. |
The drilled hole will be rough |
E. |
The drilled hole will be smooth |
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Answer: Option B
Explanation:
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58. |
If a drill does not cut; the probable cause would be |
A. |
Drill blunt |
B. |
Material difficult to drill |
C. |
Speed low |
D. |
Absence of coolant |
E. |
None of the above |
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Answer: Option A
Explanation:
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59. |
Simple indexing using a dividing head of turn ratio 40 for 6 division would be |
A. |
14 holes in 21 hole circle plate |
B. |
6 turns |
C. |
26 holes in 21 hole circle plate |
D. |
6 turns and holes in 21 hole circle plate |
E. |
6 turns and 14 holes in 30 hole circle plate |
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Answer: Option D
Explanation:
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60. |
Indexing for 107 divisions can be done by |
A. |
Simple indexing |
B. |
Compound indexing |
C. |
Differential indexing |
D. |
Compound differential indexing |
E. |
Angular indexing |
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Answer: Option C
Explanation:
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