Unit 6

Question 1

T/F
Nails are sometimes coded with zinc to protect them from corrosion

Answer 1

True

Question 2

T/F
A wall anchor is a one time fastener

Answer 2

False

Question 3

T/F
A pin rivet must be installed in a properly sized, pre-drilled

Answer 3

True

Question 4

T/F
A perforated strap is a very versatile fastener as it can be used on all sizes of pipe

Answer 4

True

Question 5

T/F
A blind rivet is used when you cannot see the two pieces of metal that you are joining

Answer 5

False

Question 6

T/F
A toggle bolt is a one time faster

Answer 6

True

Question 7

T/F
To fasten a duck hanger to a gypsum board wall, the best fastener would be an anchor shield

Answer 7

False

Question 8

Wood screws come in three tight pads. They are flat, round, and _________

Answer 8

Oval

Question 9

A sheet metal screw that does not require a drilled receiving hole is called
_________

Answer 9

Self tapping screw

Question 10

To secure two pieces of sheet metal together, a technician may use a ____________ screw

Answer 10

Self drilling screw

Question 11

The easiest way to secure a thermostat cable is to use a ___________

Answer 11

U groove staple gun

Question 12

Set screws come with six different points. They are flat, cone, oval, cup, dog and _________

Answer 12

Half dog

Question 13

The most common fastener used for securing an object to a solid concrete slab would be the ___________

Answer 13

Masonry nail, anchor shield or drop on anchor

Question 14

Six different types of heads for machine screws are flat, round, oval, pan, hexagon, and _____________

Answer 14

Phillister

Question 15

The term used to designate the size of a nail is _____________ and the symbol d.

Answer 15

Penny

Question 16

Rivets used to fasten two pieces of sheet metal where only the outside surface is accessible are called

Answer 16

Pin

Question 17

Which is the largest diameter would screw, a #8 or #10?

Answer 17

10

Question 18

Describe two types of staples and an example of their

Answer 18

U-shaped and outward cinch for fiberglass ductwork

Question 19

What are the two types of sheet metal screws?

Answer 19

Self drilling and self tapping

Question 20

Name three types of fascinating devices that can be used to mount an object to a hollow wall

Answer 20

Toggle bolt, zip its, anchor shield

Question 21

Multiple-choice
To fasten duct hanger strap to a floor joist, the nail used would be a

Answer 21

Roofing nail

Question 22

Multiple-choice
The whole drilled and sheet metal for a tapping screw should be the approximate size of

Answer 22

The thread root diameter

Question 23

Multiple choice
Hollow rivets are assembled on a pin often called

Answer 23

Mandrel

Question 24

For fascinating, a pipe strap to a cement wall, the nail used would be a

Answer 24

Masonry nail

Question 25

Multiple-choice For fastening two pieces of rough lumber together, the nail used would be a

Answer 25

Common nail

Question 26

Multiple-choice In the tapping screw dimension 6–20 x 1/2 type AB, slotted hex, the term 20 indicates

Answer 26

Number of threads

Question 27

Multiple choice To secure a flexible duct onto a duck collar, the best fastener would be a

Answer 27

Nylon strap

Question 28

Multiple-choice An outward clinch tacker is used to

Answer 28

Spread the ends of a staple outward hook

Question 29

Multiple-choice In the machine, screw dimension, 5/16 - 18 UNC-2, the 5/16 indicates the

Answer 29

Outside thread diameter

Question 30

Multiple choice For recessing the nail for filling and finishing the wood surface, the nail used would be a

Answer 30

Finishing nail

Question 31

Kaipo is working on a wine cooler unit and he needs to remove 18 rivets for the cover to come off. What should he do?

Answer 31

Drill them out

Question 32

What is another name for a screw on wire connector?

Answer 32

Wire nut

Question 33

Staples are used in the HVAC field to A) B)

Answer 33

A) secure thermostat wire B) secure romex wire C) fasten ductwork

Question 34

When connecting stranded wire under a screw terminal (like a thermostat.) what process should be used to ensure a secure installed connection is obtained?

Answer 34

The wire should be tinned and screwed on from the left. Otherwise use the appropriate wire connector like a spade.

Question 35

Lag screws come with a _______ or a ________ and a tapered shaft.

Answer 35

Hex head or a square head

Question 36

Deven asked what is a cotter pin used for?

Answer 36

This is used to secure an object to a shaft and keep it from sliding off. For example, a fan blade or pulley.