Multiple Choice
In EDM, the tool and work piece are separated by
A) A metal conductor
B) Negative ions
C) Dielectric fluid
D) Positive ions
E) An electrolyte
Correct Answer:
Verified
Correct Answer:
Verified
Q21: Presence of oxygen in copper<br>A)gives it yellow
Q22: Which of the following defect in castings
Q23: Aluminium gears are generally used in<br>A)Compressors<br>B)Speed reducers<br>C)Instruments<br>D)Worm
Q24: The disadvantage of die casting process is<br>A)Cost
Q25: The limitation of a pneumatically operated automatic
Q27: The gold point temperature is<br>A)569°C<br>B)863°C<br>C)100°C<br>D)1000°C<br>E)1063°C
Q28: In electrical resistance welding when the current
Q29: The coolant generally used while machining with
Q30: During continuous chip formation the maximum heat
Q31: Range of forging temperature for a mould