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Manufacturing Engineering Ii
Manufacturing Technology Assessment
Quiz 1
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Q.1
What does faraday’s second law electrolysis state?
a) W∝Q, where W= mass of substance deposited and Q= charge passed through the electrolyte
b) w1/w2 = E1/E2, where w1 and w2 = mass of different substances deposited, and E1 and E2 = their equivalent masses
c) Induced EMF = – dΦ / dt
d) Force between two charge particles q1 and q2, F= kq1q2/r2
Q.2
What is faraday’s first law of electrolysis?
a) W∝T, where W= mass of substance deposited and T= temperature of the electrolyte
b) W∝K, where W= mass of substance deposited and K= ionisation constant of the electrolyte
c) W∝Q, where W= mass of substance deposited and Q= charge passed through the electrolyte
d) W∝ 1/Q, where W= mass of substance deposited and Q= charge passed through the electrolyte
Q.3
In ECM, accuracy of the product is independent of the accuracy of the cathode tool.
a) True
b) False
Q.4
Which of the following materials can be used for making cathode tool?
a) Monel
b) Cast iron
c) Lead
d) Carbides
Q.5
Conductivity of the electrolyte is unaffected by the loss of hydrogen during electrolysis.
a) True
b) False
Q.6
Which of the following manufacturing process is favourable for making tool for ECM?
a) Casting
b) Cold forging
c) Laser cutting
d) Shaping
Q.7
Precipitate formation reduces the conductivity of the electrolyte solution.
a) True
b) False
Q.8
Solubility of the reaction products increases with_____
a) increase in pressure of the electrolyte
b) increase in temperature of the electrolyte
c) increase in work-tool gap
d) decrease in temperature of the electrolyte
Q.9
In order to obtain good results in ECM, _____
a) maximise polarization
b) allow rise in temperature of the electrolyte
c) removal of used electrolyte form the working gap
d) decrease the concentration of the electrolyte
Q.10
Increase in pressure of the electrolyte above atmospheric pressure is beneficial.
a) True
b) False
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