Cutting Tools MCQ - Machinist(Set-1) with Answers

46) A slight convexity is made on the cutting edges of flat chisel for

Answer is:

Preventing digging of the ends of cutting edge

47) The point angle of twist drill depends upon the

Answer is:

Material to be drilled

Explanation:

The point angle of a general purpose (standard) drill is 118°. This is the angle between the cutting edges (lips). The angle varies according to the hardness of the material to be drilled.

The point angle of twist drill depends upon the

48) The point angle of twist drill for general purpose is

Answer is:

118 Degree

Explanation:

For general purpose use point angle of twist drill is 118 Degree.

The point angle of twist drill for general purpose is

49) The relief angle given behind the cutting lips is called

Answer is:

Lip clearance angle

Explanation:

The relief angle given behind the cutting lips is called Lip Clearance angle

50) A hole of 10 mm diameter is to be finished with a hand reamer. The hole size required for reaming should be

Answer is:

46) A slight convexity is made on the cutting edges of flat chisel for

Preventing digging of the ends of cutting edge

47) The point angle of twist drill depends upon the

Material to be drilled

48) The point angle of twist drill for general purpose is

118 Degree

49) The relief angle given behind the cutting lips is called

Lip clearance angle

50) A hole of 10 mm diameter is to be finished with a hand reamer. The hole size required for reaming should be

9.75 mm