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GATE 2022 ME: Production Engineering Quiz - 8

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Question 1

The frequency of the vibrations generated by the transducer in ultra-sonic machining will in the order of ______.

Question 2

In a certain ECM operation, the frontal working area of the electrode is 2000 . The applied current and voltage are 1800 A and 12 V respectively. The material being machined is Nickel (Valency 2) whose specific material rate C=3 .42x. The efficiency of the process is 90% and the resistivity of the electrolyte is 140 ohm-mm , with an overvoltage of 1 .5 V. The MRR in and the working gap respectively are:

Question 3

What is the mechanics of electron beam machining for removal of metal?

Question 4

In which of the following non-traditional machining processes, tool wear doesn’t occur?

Question 5

Which of the following machining methods is an electroplating method, in a reverse direction, along with some alterations?

Question 6

In electrochemical machining the material removed from iron (atomic weight 56 valancy =2) following data has been taken:
Density = 7.8gram/cc
MRR = 5cc/minute
Specific material removal rate and desired current respectively:
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Oct 14ESE & GATE ME