Obj. 4.00 to 4.03

The fastener that needs a threaded hole in at least one of the pieces of metal being joined together is a:

• Machine Screw

• Flat Washer

• Rivet

• Nail

What type of fastener is used when the most strength is needed?

• Machine Bolt

• Carriage Bolt

• Stove Bolt

• Toggle Bolt

Plow bolts are used to attach plowshares because the bolt heads

• are square

• have hex heads

• are flush with the surface

• stick out above the surface

What device is used with a nut to fasten together two pieces of metal?

• bolt

• glue

• nail

• screw

When one makes a cut with a metal chop saw, the blade should always

• cut approximately 1/4" on the waste side of the marked line

• cut on the waste side of the marked line

• cut on the good side of the marked line

• line up directly with the marked line

A cotter pin is used with a castle or slotted nut to

• clean the threads

• keep the nut tight

• making self tapping thread

• make the nut easy to remove

In using a plasma cutting torch, which should Charles have in place on the torch to protect the electrode?

• kerf

• shield

• swirl ring

• torch valve

Which equipment would be unnecessary for someone operating a portable disc grinder on metal?

• hearin protection

• welding helmet

• safety glasses

• face shield

How should Joseph remove a hex socket head bolt?

• by oiling

• by hammering

• by using an Allen Wrench

• by using a combination wrench

For successful cutting in a plasma cutting system, what is imperative to remove from the compressed air?

• Radon

• Oxygen

• Water VApor

• Carbon Dioxide