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Rolling Operation Part - II GATE 2024 Fundamental Quiz
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Question 1
Which of the following statements is correct regarding rolling process ?
a) The roll separating force can be reduced by using small rollers.
b) To avoid roll bending, rolls with convex chambers is used.
c) Rolling is a cold forming operation.
d) All of the above.
Question 2
A strip is to be rolled from a thickness of 30 mm to 15 mm using a two high mill having rolls of diameter 300 mm. The coefficient of friction for unaided bite should be.
Question 3
A bar of 10 mm is feed between two rolls. The velocity with which the bar is delivered to the Point between the rolls is
52.5 mm/sec. The velocity of the rolls is 50 mm/sec, then percentage of forward slip is_______.
52.5 mm/sec. The velocity of the rolls is 50 mm/sec, then percentage of forward slip is_______.
Question 4
In a rolling process, it is desired to get uniform thickness of the plates, for this one provides :
Question 5
Which of the following sequence is correct regarding the rolling process ___________?
Question 6
Ring rolling is used _______.
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