MT INTRODUCTION UNIT 1

1. Horizontal force exerted by tool on work piece is known as

• Cutting force

• Frictional resistance

• Backing up force

• Shear force

Answer explanation

Explanation: Cutting force is the force by which tool cut work piece in horizontal direction. It is responsible for the cutting action during machining.

2 . Force exerted by work piece on chip in normal direction of shear plane is known as

• Cutting force

• Frictional resistance

• Backing up force

• Shear force

Answer explanation

Explanation: Backing up force is the force exerted by work piece on chip in normal direction of shear plane. It does not cause any distortion or shape change

3. The high cutting speed and large rake angle of the tool will result in the formation of

• continuous chips

• discontinuous chips

• continuous chips with built up edge

• none of the mentioned

4. The cutting tool removes the metal from workpiece in the form of

• solid blocks

• powder

• chips

• all of the above

5. The forces required for metal cutting operation

• increase with increase in the feed of the tool and decreases with increase in the depth of cut

• decrease with increase in the feed of the tool and increases with increase in the depth of cut

• increase with increase in both the feed of the tool and the depth of cut

• decrease with increase in both the feed of the tool and the depth of cut