Mechanical Engineering - Production Engineering

31.
In drilling bakellite and fibrous plastics, the point angle of a drill is
90°
118°
135°
150°
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
The shear velocity is the velocity of
tool relative to the workpiece
chip relative to the tool
tool along the tool face
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

33.
In centreless grinders, the regulating wheel is inclined at
0° to 8°
9° to 15°
16° to 20°
21° to 25°
Answer: Option
Explanation:
No answer description is available. Let's discuss.

34.
A grinding wheel is said to be of __________ if the abrasive grains can be easily dislodged.
soft grade
medium grade
hard grade
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
In drilling softer materials, the cutting speed is __________ as compared to harder materials.
same
low
high
Answer: Option
Explanation:
No answer description is available. Let's discuss.