| 1. | Flank wear depends upon the ? | |
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hardness of the work and tool material at the operating temperature
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amount and distribution of hard constituents in the work material
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degree of strain hardening in the chip
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all of these
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Report Question| 2. | A lathe with four steps on the cone pulley and with backgears will have ? | |
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four direct speeds
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four indirect speeds
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four direct and four indirect speeds
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eight indirect speeds
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| 3. | Tool life is generally better when ? | |
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grain size of the metal is large
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grain size of the metal is small
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hard constituents are present in the microstructure of the tool material
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none of the above
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| 4. | Ceramic cutting tools are ? | |
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made by cold pressing of aluminium oxide powder
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available in the form of tips
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brittle and have low bending strength
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all of these
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| 5. | The chamfering is an operation of ? | |
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bevelling the extreme end of a workpiece
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embossing a diamond shaped pattern on the surface of a workpiece
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reducing the diameter of a workpiece over a very narrow surface
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enlarging the end of a hole cylindrically
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| 6. | Slow speed of the spindle is necessary in ? | |
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thread cutting
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turning a work of larger diameter
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turning a hard or tough material
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all of these
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| 7. | For turning small taper on long workpiece, the suitable method is ? | |
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by a form tool
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by setting over the tail stock
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by a taper turning attachment
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by swivelling the compound rest
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| 8. | Tumbler gears in lathe are used to ? | |
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reduce the spindle speed
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cut gears
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give desired direction of movement to the lathe carriage
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drill a workpiece
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| 9. | The machining of titanium is difficult due to ? | |
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high thermal conductivity of titanium
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chemical reaction between tool and work
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low tool-chip contact area
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none of these
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| 10. | The lathe spindles are usually made hollow and provided with ? | |
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internal taper
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external taper
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internal and external taper
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no taper
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