| 1. | Single point cutting tool means ? | |
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no cutting edge
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single cutting edge
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holding arrangement for tool
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none of the above
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Report Question| 2. | What effective change will occur to the tool geometry if the cutting tool is set above the centre height on lathe ? | |
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front clearance angle is increases
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front clearance angle is decreases
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front clearance angle remains the same
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front clearance angle becomes zero
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| 3. | The negative rake angle is generally provided on the tool made of ? | |
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HSS
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HCS
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tungsten carbide
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tool steel
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| 4. | HSS tool bit of specification 1/2×6" the number 6 inch refers to ________ ? | |
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thickness of tool
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length of tool
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material of the workpiece
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none of the above
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| 5. | When the cutting edge of the tool is dull, then during machining __________ ? | |
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Discontinuous chips are formed
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Continuous chips with built-up edge are formed
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Continuous chips are formed
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no chips are formed
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| 6. | Which of the following lathe operations requires the cutting edge of a tool bit be placed exactly on the work centre line ? | |
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boring
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drilling
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turning
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facing
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| 7. | Which of the following is not the objective of a negative rake angle ? | |
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it can bear high compressive load
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makes the cutting angle strong
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increase the chance of tool damage
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increase the life of the tool
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| 8. | To enable a nut to fit properly on a bolt of square thread. The width of internal square threading tool should be ? | |
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slightly more than the half pitch
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slightly less than the half pitch
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equal to the half pitch
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equal to the pitch
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| 9. | Inserted HSS tool bits are more useful for the operation ? | |
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boring
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external threading
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internal threading
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all of the above
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| 10. | The chip breaker on a lathe tool is essential when ? | |
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turning soft material
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turning ductile materials and to break the chips
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turning cast iron
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turning hardened material
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