MT UNIT I Mechanics of chip formation

1. Which of the following parameters govern the value of shear angle in continuous chip formation?

• True feed

• Chip thickness

• Rake angle of the cutting tool

• All of these

2.  The ductile materials, during machining, produce

• Continuous chips

• Discontinuous chips

• Continuous chips with built up edge

• Either (A) or (C)

3. A right hand tool on a lathe cuts most efficiently when it travels

• From left to right end of the lathe bed

• From right to left end of the lathe bed

• With the help of a compound slide

•  Across the bed

4. Cast iron during machining produces

• Continuous chips

• Discontinuous chips

• Continuous chips with built-up edge

• None of these

5. The angle on which the strength of the tool depends is

• Rake angle

• Cutting angle

• Clearance angle

• Lip angle

6. The surface finish is improved by the increase in

• Cutting speed

• Nose radius

• True rake angle

• All of these