Manufacturing And Production Technology - Study Mode
[#361] The vector sum of cutting velocity and chip velocity is __________ shear velocity.
Correct Answer
(A) Equal to
Explanation
Solution: The vector sum of cutting velocity and chip velocity is equal to shear velocity.
[#362] The increase in depth of cut and feed rate _________ surface finish.
Correct Answer
(B) Deteriorates
Explanation
Solution: the surface roughness is directly influenced by the spindle speed and feed rate. It is observed that the surface roughness increases with increased feed rate and is higher at lower speeds and vice versa for all feed rates.
[#363] Larger end cutting edge angle _________ tool life.
Correct Answer
(A) Increases
Explanation
Solution: At the same feed rate, increasing the side cutting edge angle increases the chip contact length and decreases chip thickness. As a result, the cutting force is dispersed on a longer cutting edge and tool life is prolonged.
[#364] Misrun is a casting defect which occurs due to
Correct Answer
(B) Insufficient fluidity of the molten metal
[#365] An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as
Correct Answer
(C) Knurling