Production Engineering

Question: Crater wear occurs mainly on the
[A].

nose part, front relief face and side relief face of the cutting tool

[B].

face of the cutting tool at a short distance from the cutting edge only

[C].

cutting edge only

[D].

front face only

Answer: Option B

Explanation:

No answer description available for this question.

Question: Negative rakes are used for
[A].

carbide tools

[B].

heavy loads

[C].

harder materials

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Larger than 15° side cutting edge angle
[A].

increases tool life

[B].

decreases tool life

[C].

produces chipping and decreases tool life

[D].

results in excessive stress concentration and greater heat generation

Answer: Option C

Explanation:

No answer description available for this question.

Question: In order to prevent tool from rubbing the work __________ on tools are provided.
[A].

rake angles

[B].

relief angles

Answer: Option B

Explanation:

No answer description available for this question.

Question: Back rake angle of a single point tool is the angle by which the face of the tool is inclined towards back.
[A].

Agree

[B].

Disagree

Answer: Option A

Explanation:

No answer description available for this question.

Question: In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as
[A].

side relief angle

[B].

end relief angle

[C].

back rake angle

[D].

side rake angle

Answer: Option B

Explanation:

No answer description available for this question.

Question: The binding material used in cemented carbide tools is
[A].

tungsten

[B].

chromium

[C].

silicon

[D].

cobalt

Answer: Option D

Explanation:

No answer description available for this question.

Question: Cemented carbide tool tips are produced by powder metallurgy.
[A].

True

[B].

False

Answer: Option A

Explanation:

No answer description available for this question.

Question: Cemented carbide tools are generally poor in shear.
[A].

Yes

[B].

No

Answer: Option A

Explanation:

No answer description available for this question.

Question: In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be
[A].

5°

[B].

6°

[C].

8°

[D].

10°

Answer: Option B

Explanation:

No answer description available for this question.