Engineering

It is best to remove cuttings or debris when the machine is

• running so that they do not slow down the job.

• off so they do not cut you.

• spinning slowly as you can catch them easier.

• spinning fast so that the finish of the work looks good.

How should you remove chips from the lathe?

• with your hands

• with a rag when the machine is on

• they will always fall free of the cut

• with a brush only

Should you keep long hair away from the Lathe by keeping it tied back or covered.

• yes

• no

The lathe is

• a renewable source of energy
• a turning machine
• the process of giving a specific shape
• a system that makes a car move

When should you use a relief cut?

❍ a. To make curved or circular cuts

❍ b. When the saw is running hot

❍ c. to make long, straight cuts

❍ d. all of the above

• a

• b

• c

• d

What should you do if you hear a clicking sound while the saw is moving?

❍ a. Continue cutting at high speed—this is normal

❍ b. Finish the cut at a slower speed and notify your instructor

❍ c. Remove scrap material from the saw blade with a stick, brush, or compressed air

❍ d. Turn off the saw, remove the stock after the blade comes to a complete stop, and notify your instructor

• a

• b

• c

• d

When must the guards be in place?

❍ a. At all times

❍ b. When the machine is at full speed

❍ c. When you are cutting

❍ d. When your hands are directly over the blades

• a

• b

• c

• d

Make sure the blade is:

❍ a. At the correct tension

❍ b. Properly set

❍ c. The correct width

❍ d. All of the above

• a

• b

• c

• d

When cutting, do not have _______________________ directly in line with the saw blade.

• the cutting line

• your safety glasses

• your hands

• the surplus stock

When operating a variable speed scroll saw, always start the machine at ______________________ speed setting and adjust the speed to the slowest speed before turning off the power.

• the slowest

• the fastest

• any

• a medium