Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.	Electrolyte used in ECM should have _____________
A.	high specific heat
B.	lower resistance to film formation on the workpiece
C.	higher viscosity
D.	corrosive nature
Answer» B. lower resistance to film formation on the workpiece

Discussion

2.	In ECM, workpiece acts as a cathode.
A.	True
B.	False
Answer» B. False

Discussion

3.	In ECM operation of pure iron an equilibrium gap (h) of 2 mm is to be kept. What will be the supply voltage (v), if the total overvoltage is 2.5 Volts. The resistivity(r) of the electrolyte is 50 -mm and the set feed rate (f) is 0.25 mm/min.
A.	5v
B.	7.8v
C.	11.3v
D.	13.2v
Answer» E.

Discussion

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Explore topic-wise MCQs in Testing Subject.

Electrolyte used in ECM should have _____________

In ECM, workpiece acts as a cathode.

In ECM operation of pure iron an equilibrium gap (h) of 2 mm is to be kept. What will be the supply voltage (v), if the total overvoltage is 2.5 Volts. The resistivity(r) of the electrolyte is 50 -mm and the set feed rate (f) is 0.25 mm/min.