RAC 40 Quiz 6 Review Questions and Answers
Describe two types of staples and an example of their use. - Answer- U shape staple: used to secure low voltage wire
Outward clinch tacker (bends staples outward): Used for securing installation around heating and cooling materials.
What are two t...
Describe two types of staples and an example of their use. - Answer- U shape staple:
used to secure low voltage wire
Outward clinch tacker (bends staples outward): Used for securing installation around
heating and cooling materials.
What are two types of sheet metal screws? - Answer- self tapping, self drilling
Name three types of fastening devices that can be used to mount an object to a hollow
wall - Answer- 1. toggle bolt
2. wall anchor
3. anchor shield
Matching solderless terminal to best application - Answer- better to look at quiz paper
To fasten duct hanger strap to a floor joist the nail used would be a.
A. Masonry nail
B. Finishing nail
C. Common nail
D. Roofing nail - Answer- D. Roofing nail
The hole drilled in a sheet metal tapping screw should be the approximate size of
A. The tread root diameter
B. The thread diameter
C. The shank diameter
D. The head diameter - Answer- A. The tread root diameter
Hollow rivets are assembled on a pin often called a(n)
A. Nozzle
B. anchor
C. Mandrel
D. clinch - Answer- C. Mandrel
For fastening a pipe strap to a cement wall the nail used would be a
A. roofing nail
B. finishing nail
C. common nail
D. masonry nail - Answer- D. masonry nail
, For fastening two pieces of rough lumber together the nail used would be
A. finishing nail
B. Masonry nail
C. roofing nail
D. common nail - Answer- D. common nail
In the tapping screw dimension "6-20 X 1/2 type AB, slotted hex," the term 20 indicates
the
A. Head diameter
B. Thread diameter
C. number of threads
D. Length - Answer- C. number of threads
To secure a flexible duct onto a duck collar, the best fastener would be a
A. Duct tape
B. Sheet metal screw
C. Iron wire
D. Nylon strap - Answer- D. Nylon strap
An outward clinch tacker is used to __________
A. Spread the ends of a staple outward
B. Install a pipe rivet
C. Drive a roofing nail
D. Bend wire on a pipe hook - Answer- A. Spread the ends of a staple outward
In the machine screw dimension "5/16 - 18 UNC-2," the 5/16 indicates the __________
A. Head diameter
B. Length
C. Outside thread diameter
D. Number of threads - Answer- C. Outside thread diameter
When connecting stranded wire under a screw terminal (like a thermostat) what process
should be used to ensure a secure and solid connection is obtained? - Answer- Solder
the end of the wire so all copper strands are binded together and no loose wires will fall
out
Nails are sometimes coated with zinc to protect them from corrosion - Answer- True
A wall anchor is a one time fastener - Answer- False
A pin rivet must be installed in a properly sized, pre-drilled hole. - Answer- true
Perforated strap is a very versatile fastener as it can be used on all sizes of pipe -
Answer- true
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