Mechanical Engineering - Production Engineering

11.
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
10 m/min
15 m/min
22 m/min
30 m/min
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
The vector sum of cutting velocity and chip velocity is __________ shear velocity.
equal to
less than
more than
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
For harder alloy steel, the point angle of the drill is kept
equal to 118°
less than 118°
more than 118°
any one of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
An open structure of a grinding wheel is denoted by the number 1 to 8.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness ratio is unaffected with the changed cutting conditions, the actual chip thickness will be
doubled
halved
quadrupled
unchanged
Answer: Option
Explanation:
No answer description is available. Let's discuss.