Operations on the Centre Lathe

What is the name of the operation that is to be do at A to make the Test Plug in Figure 2?

• parallel turning

• knurling

• tapering

• facing

What is the name of the operation that is to be do at B to make the Test Plug in Figure 2?

• parallel turning

• knurling

• tapering

• facing

What is the name of the operation that is to be do at C to make the Test Plug in Figure 2?

• parallel turning

• knurling

• tapering

• facing

What is the name of the operation that is to be do at A to make the object shown on the lathe?

• chamfering

• knurling

• tapering

• screw cutting

What is the name of the operation that is to be do at B to make the object shown on the lathe?

• chamfering

• knurling

• tapering

• screw cutting

Which would be the best sequence of operations to be used to make the test plug on the centre lathe.

• 1 Knurling

  2 Facing

  3 Tapering

  4 Parallel turning

• 1 Facing

  2 Parallel turning

  3 Tapering

  4 Knurling

• 1 Screw cutting

  2 Tapering

  3 Knurling

  4 Chamfering

• 1 Facing

  2 Parallel Turning

  3 Tapering

  4 Screw cutting

Which would be the best sequence of operations to be used to make the test plug on the centre lathe.

• 1 Knurling

  2 Facing

  3 Tapering

  4 Parallel turning

• 1 Facing

  2 Parallel turning

  3 Tapering

  4 Knurling

• 1 Screw cutting

  2 Tapering

  3 Knurling

  4 Chamfering

• 1 Facing

  2 Parallel Turning

  3 Tapering

  4 Screw cutting

What should be the RPM for the spindle speed of lathe to turn section C of diameter 40 mm if the cutting speed constant of the material is 30 m/min

• 239/min

• 382,165/min

• 425/min

• 60/min

What should be the RPM for the spindle speed of lathe to knurl section A of diameter 40 mm if the cutting speed constant of the material is 30 m/min

• 239/min

• 382,165/min

• 425/min

• 60/min

Calculate the spindle speed for turning a 50 mm diameter bar at a cutting speed of 40 meters per minute

• 350/min

• 50/min

• 255/min

• 455/min