Brainscape's Knowledge GenomeTM

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


See full index

TPC > IPT Section 3 - hydraulics > Flashcards

IPT Section 3 - hydraulics Flashcards

1
Q

What type of pipe finish is preferred for hydraulic systems?

A
  • pickled and oiled

- pickled only

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

At what size does NPS refer to outside diameter of the pipe?

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

True or false

As the wall thickness of the pipe changes, the inside diameter changes.

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

True or false

The wall thickness of 10” schedule 40 pipe is identical to 10” standard pipe.

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

True or false

The wall thickness of 10” schedule 80 pipe is identical to 10” extra heavy pipe

A
  • false

- identical up to 8”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the corresponding schedule number for double extra heavy pipe?

A
  • there is no corresponding schedule number
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the recommended maximum pressure for screw thread pipe joints?

A
  • 2500 PSI
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

List 3 situations where welded pipe joints would be preferred over threaded joints

A
  • high pressures
  • vibration present
  • oil leaks not tolerated
  • large pipe diameter
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the three pressure designations for forged steel fittings?

A
  • class 2000
  • class 3000
  • class 6000
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

True or false
The American National Standards Taper Pipe Thread (NPT) has a 1 in 16 (3/4” per foot) taper on the diameter and a 60° thread form

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

True or false

All pipe threads have the same number of threads per inch.

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

How does NPTF thread differ from the NPT thread?

A
  • same form and dimensions as NPT thread

- the truncation of the crests and roots is changed to ensure spiral clearance between the threads is eliminated

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

Why should a thread sealant be used with the NPTF thread?

A
  • anti-galling purposes (lubrication) between male and female threads
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which type of reamer should be used in a power vise to remove internal burrs after cutting a pipe off to length?

A
  • straight fluted reamer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

True or false

The spiral reamer can be used to remove external burrs

A
  • false

- must be filed or ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Over-tightening pipe threads in a housing

A
  • may split or crack the housing
17
Q

Tubing is sized according to which diameter?

A
  • outside diameter
18
Q

True or false

The wall thickness of tubing is specified by a schedule number similar to iron pipe.

A
  • false
19
Q

True or false

Tubing sized as -12 would be 1-1/2” tubing

A
  • false
20
Q

True or false

Carbon steel is the only material available for tubing

A
  • false
21
Q

True or false

When using flareless type fittings it is important that the tubing is soft relative to the fitting material

A
  • true
22
Q

True or false

NPT threads are used when the tubing is to be threaded

A
  • false
23
Q

When using flared fittings: when is a double flare used?

A
  • when using thing wall tubing
24
Q

True or false

The 37° flare is the standard angle used for hydraulic tubing

A
  • true
25
Q

List three advantages that flexible hydraulic hose has over rigid connectors:

A
  • simple to route and set in place
  • can withstand vibration
  • no problems with thermal expansion or contration
  • dampens hydraulic shock
26
Q

List the three main components of flexible hose

A
  • inner tube
  • reinforcement
  • outer protective cover
27
Q

For a given size, what determines the pressure rating of hydraulic hose?

A
  • the reinforcement (+diameter)
28
Q

True or false

The swaged on type of hydraulic hose end is not reusable

A
  • true
29
Q

True or false

The dash number used to size hydraulic flexible hose refers to the inside diameter of the hose for most hose types

A
  • true
30
Q

A -5 flexible hydraulic hose is what size in inches?

A
  • 5/16”
31
Q

A 1-1/4” hydraulic hose is what dash size?

A
  • -20
32
Q

True or false

For a specific reinforcement, the working pressure of hydraulic hose becomes less as the size increases

A
  • true
33
Q

As a hose is pressurized its length will:

A
  • become shorter and longer

TPC (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions