ACR-101 Final Exam (CRF)

A socket set is an integral part of a technician's tool box because ____.

• the extension allows easier access to nuts/bolts in tight locations

• there are multiple sockets that can be interchanged easily to accommodate many different size nuts and bolts

• All of the above.

Air conditioning and refrigeration reversible ratchet wrenches are used to ____.

• tighten hex head sheet metal screws

• tighten flare nuts

• open and close refrigerant service valves

Variable speed reversible electric drills can be used to drill holes as well as tighten and loosen screws.

• True

• False

The odd shape of the Torx type screw driver is the square shaft used to tighten or loosen set screws.

• True

• False

A programmable charging scale measures the volume of refrigerant flow into a refrigeration system.

• True

• False

For fastening a pipe strap to a cement wall, the nail used would be a ____.

• masonry nail
• finishing nail

• common nail

• roofing nail

To fasten a duct hanger strap to a floor joist, the nail used would be a ____.

• roofing nail
• masonry nail

• common nail

• hang nail

Pin or blind rivets are assembled on a pin often called a(n) ____.

• mandrel
• nozzel

• anchor

• clinch

The hole drilled in sheet metal for a tapping screw should be the approximate size of the ____.

• thread root diameter

• thread diameter

• head diameter

• shank diameter

A "blind rivet" is used when you cannot see the two pieces of metal that you are joining.

• True

• False