teks prosedur teknik bubut

1. What is the first step in using a lathe?

• a) Turn on the lathe

• b) Install the workpiece on the lathe table

• c) Choose the right rotation speed

• d) Set the desired cutting size

2. What is the function of rotational speed in

• a) Set the cutting size

• b) Avoid excessive vibration

• c) Ensure user security

• d) Improve the surface quality of the workpiece

3. What must be done before starting the cutting process on the lathe?

• a) Wear safety glasses

• b) Set a low rotation speed

• c) Check the condition of the cutting tools

• d) Turn on the engine cooling system

4. What should be done if vibration occurs while the machine is operating?

• a) Stop the machine and check the cutting tool

• b) Changing the rotation speed to be higher

• c) Continue operation without paying attention to vibration

• d) Reduces cutting pressure on the workpiece

5. What should be done after finishing using the lathe?

• a) Clean the work area from debris and dust

• b) Replace dull cutting tools

• c) Turn off the machine and keep the work area clean

• d) All the answers above are correct

6. What should be done before starting the turning process?

• a. Arrange the necessary lathe tools

• b. Measuring workpiece dimensions

• c. Setting the lathe machine spindle speed

• d. All the answers above are correct

7. What is the function of a lathe knife in the turning process?

• a. Provides cutting power

• b. Produces a smooth and precise surface

• c. Forms the desired shape and size on the workpiece

• d. All the answers above are correct

8. What should be done after the turning process is complete?

• a. Check whether the turning results comply with the desired specifications

• b. Store the lathe properly

• c. Clean the work area and tools used

• d. All the answers above are correct

9. What should be paid attention to when adjusting the lathe spindle speed?

• a. Workpiece material type

• b. Workpiece size

• c. Type of lathe blade used

• d. All the answers above are correct

10. How is the lathe blade adjusted before starting the turning process?

• a. Set the cutting angle of the lathe knife

• b. Check the tilt and position of the lathe blade

• c. Adjusts the cutting depth of the lathe blade

• d. All the answers above are correct