| 1. | Which of the following is an example of drilling operation ? | |
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knurling
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undercut
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trepanning
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none of these
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Report Question| 2. | Which of the following operation is suitable for enlarging an existing hole ? | |
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drilling
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counter shinking
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reaming
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boring
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| 3. | In a taper shank twist drill, a tang is provided at the end for ? | |
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driving the drill it preventing it for slipping
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avoiding the sharp edge at the end
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saving material and reducing the weight of drill
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increasing the length of drill
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| 4. | In order to finish a hole and bring it to accurate size the hole is drilled ? | |
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slightly more than the nominal diameter
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equal to the exact dimension of the hole
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slightly under size
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all of the above
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| 5. | Which among the following factor will not influence the selection of the cutting speed while performing operation on drilling machine ? | |
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width of job
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material of job
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material of tool
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operation to be performed
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| 6. | The reamer is always removed from the finished holes ? | |
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by stopping the machine
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by slowing the machine
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before stopping the machine
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all of the above
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| 7. | Which of the below operation requires higher spindle speed ? | |
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reaming
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thread cutting
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boring
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knurling
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| 8. | Commonly used units of feed in drilling operation is ? | |
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mm
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mm/rev
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mm/sec
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mm/min
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| 9. | Twist drill is a ? | |
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front cutting tool
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side cutting tool
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end cutting tool
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rear cutting tool
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| 10. | Which one of the following in not a type of drill designation ? | |
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N
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H
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S
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Q
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