Materials Science and Manufacturing Engineering Miscellaneous
- In USM the metal removal rate would... with increasing mean grain diameter of the abrasive material
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NA
Correct Option: D
NA
- In ECM, the material removal rate will be higher for metal with
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For ECM, Material removel rate (MRR) is depondent on atomic weight of material (MRR ∝ A.W.M.)
Correct Option: D
For ECM, Material removel rate (MRR) is depondent on atomic weight of material (MRR ∝ A.W.M.)
- ECM... (can/cannot) be used for all such materials for which ultrasonic machining is possible, while EDM... (can/cannot) be used for all such materials for which ECM is possible.
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Cannot, can. Ultrasonic machining can be done on any material but ECM and EDM can be done for conductive material.
Correct Option: C
Cannot, can. Ultrasonic machining can be done on any material but ECM and EDM can be done for conductive material.
- In ultrasonic machining the tool ..... at very high frequency with the help of ...... transducers.
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Tool vibrates at very high frequency with the help of magnetostrictive transducer.
Correct Option: A
Tool vibrates at very high frequency with the help of magnetostrictive transducer.
- Complete the manual part program for drilling a hole located at point (20, 20) from the target point. The depth of the hole to be drilled is 15 mm FROM/TARG GOTO/20, 20, 0
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After executing drilling process through command (– 154 mm), drill bit were, return for O level and 90 to set point.
Correct Option: A
After executing drilling process through command (– 154 mm), drill bit were, return for O level and 90 to set point.