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6 Month 3 > Pipe System TPC 306 > Flashcards

Pipe System TPC 306 Flashcards

(50 cards)

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1
Q

A fluid is defined as a material that can

Condense
Expand
Flow
Freeze

A

Flow

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2
Q

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

Air
Impurities
Liquid water
Steam

A

Liquid water

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3
Q

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

Attachments
Fittings
Joints
Links

A

Fittings 

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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

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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

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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

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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 

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8
Q

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

A

Ferrous

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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

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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

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11
Q

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

Asbestos cements
Cast-iron
Concrete
Vitrified Clay

A

Vitrified clay 

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12
Q

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

A

Cylinder

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13
Q

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

A

Plastic

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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 

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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

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16
Q

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

A

Flexibility 

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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 

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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 

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19
Q

Sections of aluminum tubing are usually joined by

Flaring
Soldering
Threading
Welding or brazing

A

Welding or brazing

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20
Q

Fusion is the process used for joining tubing made of

Copper
Plastic
Stainless steel
Steel

A

Plastic 

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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.

22
Q

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

Cover
Method of connecting hose sections
Pattern of inner core
Reinforcement

Study These Flashcards
A

Reinforcement 

23
Q

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

Study These Flashcards
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

25
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
Remove at least 1 foot of hose past the failure and reverse the hose
26
The designation “ 200 LB” refers to a fittings Safe pressure rating Strength, Support requirement Weight 
Safe pressure rating
27
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
1;1 1/2
28
The straight flow-through section of a tee fitting is called the Line Pass through Run Straight
Run
29
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
Allow for thermal expansion
30
What type of fitting helps reduce the effects of water hammer? Compression fitting Expansion bend Hammer tap Vibration dampener
Vibration dampener 
31
The proper size valve for a 3 inch pipeline is a_______ inch valve 2 1/2 3 3 1/4 3 1/2 
3
32
The part of a valve that is directly connected to the piping is called the Body Bonnet Seat Trim
Body
33
A needle valve is particularly suitable for______ control Accurate throttling High pressure Large volume Rapid on and off
Accurate throttling 
34
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
Resistance to flow must be minimal
35
The______ in an industrial valve is the same part that is called a “ washer” in a household valve Gasket Packing Seal Stem
Seal 
36
The type of valve, the best avoids contaminating the fluid with valve. Lubricant is the.______ valve Ball Diaphragm Needle Rupture- disc
Diaphragm 
37
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
Prevent shocking the boiler system 
38
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
Always changing
39
Safety valves are generally used with_____ relief valves are generally used with_____ air; steam Gases; liquids Liquids; gases Steam; air
Gases; liquids 
40
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
Quickly relieves large volumes of fluid
41
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
Preventing a valve from closing tightly 
42
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
Allows one filter element to keep working while the other is cleaned 
43
In a steam system, saturated steam can become superheated steam if the Line becomes blocked Pressure drops Pressure rises Traps do not function
Pressure drops 
44
A steam trap may not operate properly if the_____ becomes too high Differential pressure Inlet pressure Outlet pressure Temperature
Differential pressure
45
Periodic maintenance of a steam trap includes removing any accumulated Condensate Scale Sludge Steam
 Sludge 
46
A pressure gauge reads 21.8 psig. What is the absolute pressure? 7.1 psia 14.7 psia 21.8 psia 36.5 psia
36.5 psia
47
An industrial mercury thermometer encloses the bulb and capillary tube in a _____ for protection Fluid pipeline Metal tube Steel mesh cage Union fitting
Metal tube 
48
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
Allowing air to enter 
49
The regulator in a pneumatic line maintains a constant Air pressure Compressor speed Flow rate Oil content 
Air pressure
50
The purpose of an aftercooler in a compressed air system is to cool the air coming from the Compressor Pipeline Receiver Tool 
Compressor 

6 Month 3 (20 decks)

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