201 Review 😳

1) Galvanized sheet metal is cold rolled mild carbon steel plated with zinc.

• True

• False

2) 28 gauge sheet metal is thicker than 24 gauge sheet metal.

• True

• False

3) Galvanized sheet metal is the most common material used for metal duct work.

• True

• False

4) The Easy Edger is the machine used to turn a flange on curved pieces to fit into a hammer lock joint.

• True

• False

5) How much do we have to add to the edge of the fitting blank that will be run through the Easy Edger?

• 1/4 in.

• 1 in.

• 3/8 in.

• 3/16 in.

6) What is the name of the machine that you used to make straight bends in sheet metal?

• Foot shear

• Break

• Roller

• Lockformer

7) What is the machine that you used to form the throat and wrapper into a curved shape for the radius ell?

• Foot shear

• Break

• Roller

• Lockformer

8) What is the radius of a circle that has a diameter of 16 in?

• 20 in.

• 8 in.

• 32 in.

• none of the above

9) What is the name of the flat pieces of sheet metal that were cut to be used to make fittings and ducts?

• Fall

• Blank

• Joint

• Flat

10) What machine did you use to cut rectangular pieces of sheet metal for making fittings and ducts?

• Foot shear

• Break

• Roller

• Lockformer