Mechanical Engineering

Question: If the cutting speed is increased, then the built-up-edge
[A].

becomes longer

[B].

may or may not form

[C].

becomes smaller and finally does not form at all

[D].

has nothing to do with speed

Answer: Option C

Explanation:

No answer description available for this question.

Question: Mild steel during machining produces __________ chips.
[A].

continuous

[B].

discontinuous

Answer: Option A

Explanation:

No answer description available for this question.

Question: Cast iron during machining produces
[A].

continuous chips

[B].

discontinuous chips

[C].

continuous chips with built-up-edge

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: In determining the various forces on the chip, Merchant assumed that the
[A].

cutting edge of the tool is sharp and it does not make any flank contact with the workpiece

[B].

only continuous chip without built-up-edge is produced

[C].

cutting velocity remains constant

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Question: In oblique cutting system, the maximum chip thickness occurs at the middle.
[A].

Correct

[B].

Incorrect

Answer: Option B

Explanation:

No answer description available for this question.