Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PJ-01, Joining Metallic Pipe with Threaded and Flanged Fittings > Joining and Installation of Threaded Pipe and Flanged Fittings > Flashcards

Joining and Installation of Threaded Pipe and Flanged Fittings Flashcards

1
Q

What are the 2 common class ratings for steel flanged fittings?

A

150 and 300 LBS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the maximum allowable pressure for the 2 common steel flange class ratings (150,300)?

A

285 and 740 PSI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What class are cast iron fitting?

A

125 LBS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the four types of flanged fitting connections ?

A
  • Welded
  • Screwed / Threaded
  • Socket Welded
  • Lap Joint
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 2 main purposes that gaskets serve?

A
  1. Sealing for leak prevention
  2. Isolation of 2 sections of pipes being joined
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Gasket sizes are determined by the inside or outside diameter of the flanged fitting?

A

Inside

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the ratings for full face gaskets ?

A
  • 125 - 150 LBS
  • 300 LBS
  • 600 LBS
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

To select the proper full face ring gasket, determine the _________ size and the gas ________. Then refer to Eversource Material standards for flanged fittings

A

Flange / Pipeline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Should bolts have fine or coarse threads?

A

Coarse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many threads must extend beyond the nut when tightening?

A

One Full thread

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A bolt’s _______ must be in accordance with company standards.

A

Grade of steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Bolts are tightened in what pattern?

A

Star pattern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Bolts are tightened with a calibrated torque wrench using what method?

A

In thirds 1/3
ei. 100lbs
- 33 , 66 , 99 LBS , then one full clockwise rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What bolts are used to hold the gasket in place ?

A

The 2 bottom bolts / diametrically opposed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are some AOC’S

A
  • Escaping or blowing gas
  • Wall thickness irregularity
  • Unexpected pipe type, size, or pressure
  • Pipeline damage
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Painting the pipe and other fittings prevents what ?

A

Corrosion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Flanged fittings are found in both _____ and _______ installations.

A

Above / Below Ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Stress produced in a pipe wall by pressure of gas in a pipe is called what ?

A

Hoop Stress

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Always select the correct size pipe and fitting from the ______ .

A

Schedule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The disadvantages of flange joints is that the configuration is difficult to protect from what ?

A

Corrosion

21
Q

Cast iron fitting with a normal class of 125lbs normally have a ______ face.

A

Flat

22
Q

Fittings manufactured of other class ratings not of cast iron, normally have a ______ face.

A

Raised

23
Q

In some cases what type of flanges are used on meter sets?

A

Threaded / screwed flanges

24
Q

What type of flanges are used when they must be smaller than 2”?

A

Socket welded

25
Q

What type of flanges are exclusively used on meter sets?

A

Lap joint

26
Q

Flanged fittings difficult to separate may require the use a flange __________ to pry them apart.

A

Separator

27
Q

Black pipe is also referred to as what?

A
  • Black steel pipe
  • Wrought iron pipe
28
Q

Only join pipe of the same ______ and ______.

A

Schedule and Grade

29
Q

A ______ provides a 90 Deg bend with 2 female openings.

A

Elbow

30
Q

A _______ has 2 male threaded ends, and is used between fittings that are closely spaced.

A

Nipple

31
Q

A ________ , sometimes referred to as service or street ells, consist of one female opening and one male thread.

A

Street Ell

32
Q

A ___________ provides a branch connection, consisting of 3 female openings all the same size.

A

Standard Tee

33
Q

A __________ provides a branch connection, consisting of 3 female openings, 2 of the same size, 1 on smaller diameter.

A

Reducing Tee

34
Q

A _________ provides a branch connection, consisting of 2 female openings and 1 male thread.

A

Street Tee

35
Q

A _________ of a tee consists of connecting one end opening of the tee to a fitting or a piece of pipe.

A

Running Connection

36
Q

A ________ of a tee means connecting a fitting or a piece of pipe in the side “ branch “ opening of the tee.

A

Bullhead Connection

37
Q

________ consist of 2 female openings, they are used to connect two male threads, they also come in reducing type, being able to connect 2 male threads of different sizes.

A

Coupling

38
Q

______ are used to close a tap in a fitting, it is recommended when possible to instead use a cap and a nipple due to their heads being able to break.

A

Plug

39
Q

_______ are used to reduce the size of an opening.

A

Bushings

40
Q

______ allows for a quick connection and disconnection of a pipeline.

A

Unions

41
Q

______ are used for repairs in the middle of long piping systems.

A

Unions

42
Q

The _______ of the fitting is where the pipe is inserted into the fitting.

A

Face

43
Q

The ______ is the part of the fitting in which the pipe is inserted into the fitting and tightened to appoint in which it is leak proof.

A

Engagement

44
Q

The ________ is the distance from the end of the pipe to the center of the opening of the fitting.

A

Fitting allowance

45
Q

A standard thread is _______ with an angle of ______ degrees.

A

V-shaped / 60

46
Q

The first 7 threads are ____________, sharp at the top and bottom.

A

Perfect Threads

47
Q

After the perfect threads, the next 2-3 are _______

A

Perfect at the bottom but not the top

48
Q

The remaining threads are called _______, they have no sealing value.

A

Starting threads

49
Q

What PPE is required during pipe work?

A

Gloves

PJ-01, Joining Metallic Pipe with Threaded and Flanged Fittings (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions