Explore topic-wise MCQs in Manufacturing Processes.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Manufacturing Processes 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 Ω-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
4.

In ECM of pure iron a material removal rate of 600 mm3/min is required. What will be the current requirement?

A. 157A
B. 183.6A
C. 247.8A
D. 268.8A
Answer» E.
Discussion
5.

Commercial ECM is carried out at a combination of ___________

A. low voltage high current
B. low current low voltage
C. high current high voltage
D. high voltage only
Answer» B. low current low voltage
Discussion
6.

For which of the following ECM cannot be undertaken?

A. Steel
B. Nickel based superalloy
C. Aluminium oxide
D. Titanium alloy
Answer» D. Titanium alloy
Discussion
7.

MRR is ECM depends on _____________

A. hardness of work material
B. atomic weight of work material
C. thermal conductivity of work material
D. ductility of work material
Answer» C. thermal conductivity of work material
Discussion
8.

For ECM of steel which is used as the electrolyte?

A. Kerosene
B. NaCl
C. Deionised water
D. HNO3
Answer» C. Deionised water
Discussion
9.

ECM can also be called as un-controlled anodic dissolution.

A. True
B. False
Answer» C.
Discussion
10.

Electro-chemical machining is opposite of electrochemical coating.

A. True
B. False
Answer» B. False
Discussion