Quiz 6 Flashcards
How deep must the hole be drilled when installing lag shield anchors?
The length of the anchor + 1/2 an inch
What type of coating is used on nails for corrosion protection?
Zinc or resin
What are four fasteners used to mount pipe and ductwork?
Pipe hook, pipe strap, perforated strap, nylon strap.
Do self tapping screws need to have a pre drilled hole?
Yes
When using stranded wire with ends that are not tinned, what direction is the wire placed under the screw so that when tightened, the strands are pulled under the screw?
Clockwise righty tighty
How is threaded rod attached to I-beams?
With a beam clamp
What type of fastener would be used to keep a pulley from turning on a drive shaft?
Cotter pins
Power actuated fasteners require a power load. How are the different power loads marked to readily identify their level of power?
Color coded
This type of fastener holds a component either onto a shaft or inside some type of housing.
Retaining rings
Name six types of set screw styles.
Headless, square, hex, cup, dog, half dog.
Name six styles of machine screw heads.
Flat, round, fillister, oval, pan, hex.
What is an outward clinch tacker used for?
Fasten insulation around pipes
The fastener for securing flexible duct to a sheet metal collar is the
Nylon strap
How are solderless terminals fastened to stranded wire?
With a crimping tool
You want to mount an air handler from a ceiling truss. What materials would you use?
Threaded rod and angle steel.
You want to mount an air handler from a ceiling truss. What materials would you use?
Threaded rod and angle steel
The appropriate fastener for securing thermostat/low voltage control wire is the
Staple
You need to secure three 2” x 10” beams together to make a larger support beam. What type of
wood screw would you use?
Lag screw
What type of solderless terminal would you use if the securing nut cannot be completely removed?
Hook tongue
The hole drilled in sheet metal for a tapping screw should be the approximate size of the
Root diameter of the thread.
