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MIDTERM UNITS 1-8 > UNIT 6 > Flashcards

UNIT 6 Flashcards

1
Q

As a safety precaution, what must the user ensure when using wire nuts to secure two or more wires? Pg____

A

Pg 147
Ensure that the connector completely covers the bare wires.

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2
Q

For fastening two pieces of rough lumber together the nail used would be _____.

A

Common nail

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3
Q

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

A

Roofing nail

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4
Q

The larger the number of the wood screw, the larger the _____ or gauge of the shank.

A

Diameter

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5
Q

True or false
Plastic toggle drywall anchors require constant tension on the anchor when tightening. Pg ____

A

False

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6
Q

How deep must the hole be drilled when installing lag shield anchors? Pg ____

A

139 -140 as deep as the length of the shield plus approximately 1/2 in.

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7
Q

Does a number 10 wood screw have a larger shank diameter than a number 20 wood screw? Show your calculations. Pg ______

A

No, the larger the number the larger the diameter

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8
Q

What type of coating is used on nails for corrosion protection?

A

Zinc or Resin pg 133

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9
Q

The pin of a hollow rivet is often called a ________. Pg ______

A

Mandrel
134 pg

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10
Q

What are four fasteners used to mount pipe and ductwork? Pg_____

A

Pipe hook
Threaded rod
Nylon strap
Pipe strap
Perferated strap
141-142pg

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11
Q

True or false
Self tapping screws do not need a pre-drilled hole to be installed. Pg 135

A

False

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12
Q

True or false
Stranded wire should not be directly connected under a screw terminal. Pg 146

A

True

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13
Q

Name three types of nails. Pg 133

A

Common
Masonry
Finishing
Roofing

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14
Q

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?

A

Left side & spin clock wise

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15
Q

How is threaded rod attached to I-beams?

A

With beam clamps

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16
Q

What type of fastener would be used to keep a pulley from turning on a drive shaft?

A

Set screws

17
Q

Power actuated fasteners require a power load. How are the different power loads marked to readily identify their level of power?

A

By color coordination

18
Q

This type of fastener holds a component either onto a shaft or inside some type of housing.

A

Retaining rings

19
Q

Name six types of set screw styles.

A

Flat point
Cone point
Oval point
Cup point
Dog point
Half dog point

20
Q

What fasteners can be used on hollow walls?

A

Toggle bolts
Hollow wall anchor
Anchor shield
Plastic toggle

21
Q

Name six styles of machine screw heads.

A

Oval head
Round head
Fillister head
Flat head
Pan head
Hexagon head

22
Q

What is an outward clinch taker used for?

A

Used to fasten soft materials together and insulation around heat cooling pipes

23
Q

The fastener for securing flexible duct to a sheet metal collar is the…………

A

Nylon strap

24
Q

How are solderless terminals fastened to stranded wire?

A

Strip the end of the wire, and then insert into terminal and crimp

25
Q

You want to mount an air handler from a ceiling truss. What material would you use?

A

Threaded rods, steel channel, and pipe clamps/beam clamps

26
Q

True or false
Concrete fasteners do not require pre-drilled holes

A

False

27
Q

The appropriate fastener for securing thermostat/low-voltage control wire is the…….

A

Staples

28
Q

You need to secure three 2 x 10 beams together to make a larger support beam. What type of wood screw would you use?

A

Lag screws

29
Q

True or false
A self drilling drywall anchor does not require a pre-drilled hole

A

True

30
Q

What type of solderless terminal would you use if the securing nut cannot be completely removed?

A

Flanged tongue, spade tongue

31
Q

What’s the difference between a pipe strap and perforated strapping material?

A

-Perforated straps has several holes and customizable
-Pipe straps are sized and mounted with two mount holes

32
Q

The whole drilled in sheet metal for a tapping screw should be the approximate size of the……

A

Root diameter of the thread

MIDTERM UNITS 1-8 (8 decks)

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