Pipe Test

Question 1

Advantages to threaded pipe

Answer 1

Versatile
No hot work
Able to fab in the shop
Portable equipment

Question 2

Disadvantages of threaded pipe

Answer 2

Weak joints
Bad for vibration
Threads corrode easier
Prone to leak

Question 3

A 3 port connector at 45°

Answer 3

A wye fitting

Question 4

A 3 port connector at 90°

Answer 4

A tee

Question 5

XH and XX denote?

Answer 5

Extra heavy and double X heavy

Question 6

What is the weight/thickness of the pipe called?

Answer 6

Schedule

Question 7

What thickness pipe do we see most at Cliffs middletown?

Answer 7

40, 80 and 160

Question 8

Pipe under 12 inches is classified by?

Answer 8

The inner diameter of schedule 40 or standard wall pipe.

Question 9

Pipe 14 inches or larger is designated by?

Answer 9

Outside diameter

Question 10

What do we use to seal oxygen lines?

Answer 10

Teflon tape

Question 11

Can we use Teflon tape on steam?

Answer 11

No

Question 12

What is takeoff?

Answer 12

The distance from end of the pipe to the center of the fitting

Question 13

Pipe threads are designated by what?

Answer 13

Threads per inch

Question 14

What TPI is 1/8 pipe?

Answer 14

27

Question 15

What TPI is 1/4 and 3/8 pipe?

Answer 15

18

Question 16

What TPI is 1/2 and 3/4 pipe?

Answer 16

14

Question 17

What TPI is 1 to 2 inch pipe?

Answer 17

11.5

Question 18

What TPI is 2.5 to 12 inch pipe?

Answer 18

8