Related Questions

EDM machining is applied for
A Shaping carbide dies and punches having complicated profiles
B Making large number of small holes in sieves and fuel nozzles
C Embossing and engraving on harder materials
D All of these
The mechanism of material removal in EDM process is
A Erosion and Cavitations
B Cavitations and Evaporation
C Melting and Evaporation
D Melting and Corrosion
EDM is the acronym for:
A Enterprise data management
B Engineering drawing management
C Enterprise drawing manipulation
D Engineering data manipulation
As tool and work are not in contact in EDM process
A No relative motion occurs between them
B No wear of tool occurs
C No power is consumed during metal cutting
D No force between tool and work occurs
Which of the following statement is correct about hot machining?
A It requires less power than machining metals at room temperature.
B The rate of tool wear is lower.
C It is used for machining high strength and high temperature resistant materials.
D All of the above
Which of the following statement is wrong about ultrasonic machining?
A It is best suited for machining hard and brittle materials.
B It cuts materials at very slow speeds
C It removes large amount of material
D It produces good surface finish
The addition of which of the following improves machining of copper?
A Sulphur
B Vanadium
C Tin
D Zinc
The material which on machining produces chips with built up edge is
A Brittle material
B Tough material
C Hard material
D Ductile material
The operation of machining several surface of a workpiece simultaneously is called
A profile milling
B face milling
C gang milling
D none of these
Discontinuous chips are formed during machining of
A brittle metals
B ductile metals
C hard metals
D soft metals

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