Hangers

Question 1

What are three things taken into consideration when selecting piping hangers?

Answer 1

1) Weight of pipe and contents
2) pipe material
3) Control of expansion contraction

Question 2

Code requirements regarding the spacing of hangers are?

Answer 2

Minimum requirements

Question 3

Special ribbed nylon clips are used primarily for?

Answer 3

Hydronic heating systems

Question 4

Can galvanized swivel hangers be used as is for copper pipe?

Answer 4

No… It would require some type of insulation between the copper and the galvanized swivel hanger

Question 5

Riser clamps are used for?

Answer 5

Support a vertical pipe

Question 6

Clevis hangers are used for?

Answer 6

Support of horizontal pipes

Question 7

When installing pipe in steel studs, a plastic ______ should be used.

Answer 7

Bushing

Question 8

Prior to using structural attachments, permission in writing must be obtained from?

Answer 8

Structural engineer

Question 9

Concrete inserts can support ______ pounds of weight.

Answer 9

As per the manufacturers specs

Question 10

One of the most versatile support systems is?

Answer 10

Unistrut system

Question 11

Bacterial, oxidation and electrolysis are three forms of?

Answer 11

Corrosion

Question 12

Electrolysis can be increased by?

Answer 12

Raising the temperature

Question 13

An alternative to protective coatings on hangers is?

Answer 13

Sleeving pipe and wrapping pipe with electrical tape

Question 14

Hanger spacing is dependent on?

Answer 14

Pipe material
Pipe size
Pipe contents

Question 15

The final determination on hanger spacing is?

Answer 15

The applicable code

Question 16

Common fastener used as a pipe guide?

Answer 16

U bolt

Question 17

Hangers are required on ABS pipe every?

Answer 17

At the end of branches
At changes in direction
At changes in elevation

Question 18

What is the maximum spacing on all steel or iron pipes that are greater than 6 inches?

Answer 18

2.5 m

Question 19

Cast iron soil pipe must be supported at intervals not exceeding ____ m.

Answer 19

At intervals not exceeding 3 m

Question 20

What are riser clamps used for?

Answer 20

Used for supporting the weight of pipes extended vertically through a building

Question 21

If you were running pipe through metal studs, what protection if any is used?

Answer 21

Snap in pipe connecters

Question 22

Ready Rod comes in what sizes?

Answer 22

1/4” to 3/4”