Pipe System TPC 306 Flashcards

1
Q

A fluid is defined as a material that can

Condense
Expand
Flow
Freeze

A

Flow

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

The purpose of a steam trap is to remove______ from a pipeline

Air
Impurities
Liquid water
Steam

A

Liquid water

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

sections of pipe, tubing, and hose are connected together by means of components called

Attachments
Fittings
Joints
Links

A

Fittings 

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

A serious loss of pressure in a piping system may be caused by a

Closed safety valve
Loss of friction
Low fluid speed
Sludge buildup

A

Sludge buildup

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

If the speed of a fluid moving through a pipeline increases to four times the original speed, the effect of friction will be multiplied by
2
4
8
16 

A

16

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

Pipe sizes greater than_____in. are usually the outside diameter of the pipe, rather than the inside diameter
3
6
12
18

A

12

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

A pipe that carries air conditioning fluid from one part of a building to another is an example of a____ line

Process
Service
Trunk
Working

A

Service 

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

A metal that contains iron is called a(n)____ metal.
Ductile
Ferrous
Malleable
Wrought

A

Ferrous

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

The friction created by fluid flowing through a pipe is likely to be high if the fluids_____is high
Density
Pressure
Temperature
Viscosity

A

Viscosity

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

If a liquid flowing in a line is suddenly stopped by a rapid valve closure._____ may occur.
Condensation
Pressure loss
Vaporization
Water hammer

A

Water hammer

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

The most corrosive proof drain pipe for industrial waste is made of

Asbestos cements
Cast-iron
Concrete
Vitrified Clay

A

Vitrified clay 

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

Reinforced concrete pipe that includes a welded steel shell in the concrete is called______ pipe
ABS
Cylinder
Tensile
Vitrified

A

Cylinder

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

What kind of piping a self insulating?
Asbestos cement
Concrete
Glass
Plastic

A

Plastic

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

A disadvantage of connecting plastic pipe with threaded joins is that the threads?
Are difficult to cut
Cause leaks
Interfere with the flow of fluid
Weaken the pipe

A

Weaken the pipe 

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

Glass pipe is especially useful for certain applications because it
Can contain high pressures
Has no thermal expansion or contraction
Requires no special fittings to join sections
Resist contamination

A

Resist contamination

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

Which of the following is the best advantage of tubing over piping?
Flexibility
Low cost
Neat appearance
Rigidity

A

Flexibility 

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

Which of the following is commonly eliminated by the use of tubing?
Many fittings
Need for Welded joints
Source of vibration
Water hammer

A

Many fittings 

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

Work hardening is most likely a problem when you cut______ tubing with a tube cutter

Aluminum
Copper
Plastic
Stainless steel

A

Stainless steel 

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

Sections of aluminum tubing are usually joined by

Flaring
Soldering
Threading
Welding or brazing

A

Welding or brazing

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

Fusion is the process used for joining tubing made of

Copper
Plastic
Stainless steel
Steel

A

Plastic 

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A hose is identified as being -32(dash32). What size is it?
2 inch ID
2 inch OD
3.2 inch ID.
3.2 inch OD.

A

2 inch ID

22
Q

What does the term “braid” refer to when applied to hose?

Cover
Method of connecting hose sections
Pattern of inner core
Reinforcement

A

Reinforcement 

23
Q

The vacuum rating of a hose refers to its
Collapse point
Pressure capacity
Steam-carrying capability
Working pressure

A

Collapse point 

24
Q

What kind of hose should be chosen for caring a process solution that has a temperature of 400°F?
Dacron
Nylon
Polyethylene
Teflon

A

Teflon

25
Q

If a steam hose begins to fail near one end, the minimum solution to the problem is to.
Remove the failure and re-couple the hose
Remove at least 1 foot of the hose past the failure
Remove at least 1 foot of hose past the failure and reverse the hose
Replace the entire hose

A

Remove at least 1 foot of hose past the failure and reverse the hose

26
Q

The designation “ 200 LB” refers to a fittings
Safe pressure rating
Strength,
Support requirement
Weight

A

Safe pressure rating

27
Q

A short-radius elbow has a center-to-face measurement equal to______ times the pipe diameter. A long-radius elbow has a center to face measurement equal to_______ times the pipe diameter

3/4;1
3/4;1 1/2
1;1 1/2
1 1/2; 2

A

1;1 1/2

28
Q

The straight flow-through section of a tee fitting is called the

Line
Pass through
Run
Straight

A

Run

29
Q

A large bend or loop is usually included in high-temperature lines to
Allow for thermal expansion
Get around corners
Prevent water hammer
Provide a seal

A

Allow for thermal expansion

30
Q

What type of fitting helps reduce the effects of water hammer?
Compression fitting
Expansion bend
Hammer tap
Vibration dampener

A

Vibration dampener 

31
Q

The proper size valve for a 3 inch pipeline is a_______ inch valve

2 1/2
3
3 1/4
3 1/2 

A

3

32
Q

The part of a valve that is directly connected to the piping is called the

Body
Bonnet
Seat
Trim

A

Body

33
Q

A needle valve is particularly suitable for______ control
Accurate throttling
High pressure
Large volume
Rapid on and off

A

Accurate throttling

34
Q

Where a check valve is required, you should install a swing type valve if

Resistance to flow must be minimal
The fluid is a thick slurry
The operation must be quiet
Two-way flow is required

A

Resistance to flow must be minimal

35
Q

The______ in an industrial valve is the same part that is called a “ washer” in a household valve

Gasket
Packing
Seal
Stem

A

Seal 

36
Q

The type of valve, the best avoids contaminating the fluid with valve. Lubricant is the.______ valve

Ball
Diaphragm
Needle
Rupture- disc

A

Diaphragm 

37
Q

Boiler blow off valves are designed to be slow acting in order to

Discourage, excessive use
Give the operator time to get out of the way
Make the valve easier to operate
Prevent shocking the boiler system

A

Prevent shocking the boiler system 

38
Q

A pressure-regulating valve is required when a constant pressure must be maintained and the systems demand for fluid is

Always changing
Consistent
High
Low

A

Always changing

39
Q

Safety valves are generally used with_____ relief valves are generally used with_____
air; steam
Gases; liquids
Liquids; gases
Steam; air

A

Gases; liquids 

40
Q

What particular advantage does a ruptured disc relief valve have?

Can be installed in any position
Can be set with extreme accuracy
Does not need to be reset
Quickly relieves large volumes of fluid

A

Quickly relieves large volumes of fluid

41
Q

One way that solid particles can cause problems in the valve in a high-pressure line is by

Contaminating the fluid
Increasing the fluid friction
Preventing a valve from closing tightly
Reducing the pressure

A

Preventing a valve from closing tightly 

42
Q

And advantage of a duplex filter, is that it

Allows one filter element to keep working while the other is cleaned
Filters the fluid twice
Increases the service life of the elements
Removes twice as much material as a single filter

A

Allows one filter element to keep working while the other is cleaned 

43
Q

In a steam system, saturated steam can become superheated steam if the
Line becomes blocked
Pressure drops
Pressure rises
Traps do not function

A

Pressure drops

44
Q

A steam trap may not operate properly if the_____ becomes too high
Differential pressure
Inlet pressure
Outlet pressure
Temperature

A

Differential pressure

45
Q

Periodic maintenance of a steam trap includes removing any accumulated
Condensate
Scale
Sludge
Steam

A

 Sludge 

46
Q

A pressure gauge reads 21.8 psig. What is the absolute pressure?
7.1 psia
14.7 psia
21.8 psia
36.5 psia

A

36.5 psia

47
Q

An industrial mercury thermometer encloses the bulb and capillary tube in a _____ for protection
Fluid pipeline
Metal tube
Steel mesh cage
Union fitting

A

Metal tube 

48
Q

A vacuum breaker prevent the formation of a vacuum and a line by

Allowing air to enter
Forcing the vacuum out of the line
Isolating the vacuum in the line
Sealing the system

A

Allowing air to enter 

49
Q

The regulator in a pneumatic line maintains a constant
Air pressure
Compressor speed
Flow rate
Oil content 

A

Air pressure

50
Q

The purpose of an aftercooler in a compressed air system is to cool the air coming from the

Compressor
Pipeline
Receiver
Tool 

A

Compressor