ECM-Process Characteristics - 1 Online Exam Quiz
ECM-Process Characteristics - 1 GK Quiz. Question and Answers related to ECM-Process Characteristics - 1. MCQ (Multiple Choice Questions with answers about ECM-Process Characteristics - 1
Better surface finish and higher accuracy depend on which of the factors below?
Options
A : Chemical composition of the electrolyte
B : Current density
C : All of the mentioned
D : None of the mentioned
Between which values does the frontal gap's surface roughness vary?
Options
A : 0.02 to 0.13 ?m
B : 0.30 to 1.90 ?m
C : 1.93 to 2.64 ?m
D : 2.73 to 4.26 ?m
Between which values does the side gap's surface roughness vary?
Options
A : >1 ?m
B : >3 ?m
C : >5 ?m
D : >7 ?m
Electro chemical dissolution phase starts with the movement of ions between which two components?
Options
A : Cathode and anode
B : Cathode and power source
C : Power source and anode
D : Power source and electrolyte
For a better surface finish, which type of current distribution is required?
Options
A : Even
B : Uneven
C : Even & Uneven
D : None of the mentioned
For alloys, which type of electrolyte is used in ECM?
Options
A : Single component
B : Double component
C : Multi component
D : Triple component
For large components, actual machining time constitutes to how much percentage of the total machining time?
Options
A : Very low
B : Low
C : Medium
D : High
If there is a change in the selected machining conditions, it will have impact on which of the following?
Options
A : Process accuracy
B : Surface finish
C : Process accuracy & Surface finish
D : None of the mentioned
In Electrochemical machining, larger grain size causes which type of finish?
Options
A : Smoother
B : Rougher
C : Finer
D : All of the mentioned
In practice, what must be the temperature of electrolyte used in ECM?
Options
A : 10 ? 20oC
B : 20 ? 40oC
C : 60 ? 80oC
D : 80 ? 100oC
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