| 1. | What is the trouble when grinding wheel fails to cut in a grinding machine ? | |
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grinding wheel grades is soft
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grinding wheel is glazed
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grinding wheel is not securely mounted on spindle
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too much feed is given
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Report Question| 2. | The surface cutting speed in cylindrical grinding varies from ____________ ? | |
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5 to 10 m/min
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10 to 20 m/min
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20 to 30 m/min
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40 to 50 m/min
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| 3. | The symbol conventionally used for resinoid bond is ? | |
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'V'
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'E'
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'R'
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'B'
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| 4. | Aluminium oxide grinding wheels are used to grind material of ________ ? | |
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high tensile strength
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low tensile strength
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carbide tripped tool
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medium tensile strength
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| 5. | Due to continue use, the grinding wheel of an off hand grinder is glazed locally. What tool will you use to rectify these defect ? | |
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buffing wheel
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diamond wheel
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CBN wheel
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diamond dresser
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| 6. | Which one of the following is not an advantage of grinding process ? | |
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heat treated component can be ground
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produces extremely smooth surface
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heavy volume of material can be removed
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very light work could also be finished effectively
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| 7. | The cause of glazing of a grinding wheel is ? | |
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grain size is to fine
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wheel is hard
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wheel speed is to fast
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both a and b
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| 8. | As per Indian standards the 'M' grade of grinding wheel comes under the group ? | |
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soft
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medium
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hard
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very hard
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| 9. | For cylindrical grinding a small diameter work with fairly large wheel, which among the following grades of wheel should be used ? | |
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soft
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medium
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hard
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very hard
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| 10. | The structure of a grinding wheel represents ? | |
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the relative spacing occupied by the abrasive and the bond
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represents the size of the abrasive particle
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represents the bond used for the wheel
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none of the above
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