EDM Material Removal Rate MCQs : This section focuses on the "EDM Material Removal Rate". These Multiple Choice Questions (MCQs) should be practiced to improve the EDM Material Removal Rate skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
In Electro discharge machining, materials with low melting point have which type of material removal rate?
A. Very low
B. Low
C. Medium
D. High
Question 2
In Electro discharge machining, materials with low melting point have which type of surface roughness?
A. Rough
B. Smooth
C. Fine
D. All of the mentioned
Question 3
Metal is removed on which of the components in electro discharge machining?
A. Electrode tool
B. Work piece
C. Electrode tool & Work piece
D. None of the mentioned
Question 4
On which of the following components, does the MRR depend?
A. Work piece
B. Electrode tool
C. Electrode tool & Work piece
D. None of the mentioned
Question 5
What are the values of material removal rates in EDM?
A. 0.001 to 0.1 mm3/min
B. 0.1 to 400 mm3/min
C. 400 to 1000 mm3/min
D. 1000 to 5000 mm3/min
Question 6
What happens to the crater size if we decrease the pulse time keeping the current constant?
A. Increase
B. Decrease
C. Increase and decrease
D. None of the mentioned
Question 7
What happens to the crater size if we increase the current keeping the pulse time constant?
A. Increase
B. Decrease
C. Decrease and increase
D. None of the mentioned
Question 8
What happens to the material removal rate if the sparks are very less in EDM?
A. Decreases
B. Increases
C. Increase and then decrease
D. All of the mentioned
Question 9
What is the relation between the melting point and the material removal rate?
A. Directly Proportional
B. Inversely proportional
C. Indirectly proportional
D. None of the mentioned
Question 10
Which of the following factors influence the material removal rate?
A. Pulse condition
B. Electrode polarity
C. Machining medium
D. All of the mentioned