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Crocodiles > CPVC, Copper & Press Fittings > Flashcards

CPVC, Copper & Press Fittings Flashcards

1
Q

What does CPVC stand for

A

Chlorinated Polyvinyl Chloride

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2
Q

Blaze master is approved in what NFPA standards?

A

NFPA 13- Light hazard
NFPA 13R- up to 4 stories
NFPA 13D- Family dwellings

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3
Q

Blaze master is only permitted in ordinary hazards under _____

A

400 square feet

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4
Q

Solvent welding has a shelf like of __ years from production date

A

2 years

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5
Q

Solvent cement starts to gel at what temperature

A

4 degrees Celsius

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6
Q

Blaze master can be installed in temperatures as low as

A

-18 degrees Celsius

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7
Q

Blaze master is not compatible with most

A

Wiring, caulking, cooking oils, anti freeze (petroleum products, glycol based)

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8
Q

De-burring/reaming is for _____

A

Hydraulics

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9
Q

After glueing, the pipe should be twisted how much of a turn?

A

1/4 of a turn

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10
Q

What size dauber for 1” pipe

A

1/2”

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11
Q

The ___ 1/3 of the fitting is the most important

A

Bottom

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12
Q

How many wraps of Teflon on heads

A

2-3 wraps

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13
Q

Expansion loops need to be installed when a straight run longer then ____ is installed

A

100 feet

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14
Q

On hangers, Rods should be kept _____ of an inch above the hanger as a restraint

A

1/16

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15
Q

How much air pressure is allowed to be used for testing in CPVC systems

A

15psi

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16
Q

How long is set time for CPVC

A

1-5 minutes

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17
Q

How far should spacing be between hangers 1” CPVC

A

6 feet

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18
Q

Light Hazard Quantity and Combustibility of content is ____

A

Low

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19
Q

Fire in a light hazard are expected to have a ____ release rate

A

Low

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20
Q

Ordinary Hazard Group 1 Quantity is

A

Moderate

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21
Q

Ordinary Hazard Group 1 combustibility of content is ____

A

Low

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22
Q

Stock in ordinary hazard cannot be stacked higher then ____

A

8 feet

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23
Q

Ordinary Hazard group 2 Quantity of content is ______

A

Moderate to High

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24
Q

Ordinary hazard group 2 combustibility is ______

A

Moderate to high

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25
Q

Ordinary hazard group 2, stockpiles with moderate HRR cannot exceed _____

A

12 feet

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26
Q

Ordinary hazard group 2, stockpiles with high HRR cannot exceed _______

A

8 feet

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27
Q

Extra hazard quantity and combustibility is _______

A

Very High

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28
Q

Extra hazard fires are expected to have a ____ heat release rate

A

High, rapidly developing

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29
Q

Extra hazard have little to no combustible or _______

A

Flammable liquid

30
Q

Extra Hazard group 2 have a _____ amount of combustible or flammable liquids

A

High

31
Q

What is the max protection area for light hazard

A

52,000 sq ft

32
Q

What is the max protection area for ordinary hazard

A

52,000sq ft

33
Q

What is the max protection area for extra hazard

A

40,000 sq ft

34
Q

Max head protection in light hazard is

A

225 sq ft

35
Q

Max head protection in ordinary hazard is

A

130 sq feet

36
Q

Max head protection in extra hazard is

A

100 sq feet

37
Q

Water needs to be supplied for ____ amount of time in a light hazard

A

30 minutes

38
Q

Water needs to be supplied for ____ amount of time in a ordinary hazard

A

60-90 minutes

39
Q

Water needs to be supplied for ____ amount of time in a extra hazard

A

90-120 minutes

40
Q

PB stands for what

A

Polybutylene

41
Q

CPVC is not compatible with any _____ products

A

Petrochemical products

42
Q

Advantages of CPVC are

A

-Good hydraulics
-Flexible
-limited tools required
-light
-50 year lifespan
-Non Corrosive

43
Q

What sizes are available for CPVC pipe

A

3/4 to 3”

44
Q

Hanger no more then _____ away from head if system is under 100 psi

A

1 ft

45
Q

Hanger no further then _____ if system is over 100 psi

A

9 inches

46
Q

3 different expansion loops are

A

-Loop
-Offset
-Change of direction

47
Q

CPVC is designed to be used in _____ systems only

A

Wet

48
Q

What kind of anti freeze can be used in CPVC systems

A

Listed Glycerine

49
Q

At what pressure and for how long do CPVC systems need to be tested in NFPA 13R?

A

200 psi for 2 hours OR 50 psi above working pressure, whichever is more

50
Q

What are the 3 types of copper

A

K, L, M

51
Q

Which copper is the thickest?

A

K, green label, expensive

52
Q

Which copper is the thinnest?

A

M, red label, cheap

53
Q

Copper pipe comes in lengths that are _____ long

A

12-20 feet

54
Q

Methods of joining copper are

A

-Solder
-Brazing
-Flared/Compression
-Grooved

55
Q

Solder joints can only be used on ______ systems

A

Wet

56
Q

Brazed joints can be used on _____ systems

A

Wet, dry, pre action

57
Q

Soldering temperature Is

A

350-600 Fahrenheit

58
Q

Brazing temperature is

A

1100-1500 Fahrenheit

59
Q

Filler materials for brazing approved by NFPA are

A

B cup 3 and B cup 4

60
Q

Compression connection is made using a compression nut and _____

A

Ferrule (Olive)

61
Q

What size copper can be grooved

A

2 inch and up

62
Q

How far apart do hangers need to be for 1” copper

A

8 feet

63
Q

Types of pipe for press fit

A

Copper- KLM
Stainless Sch 10, 304&316
Carbon steel/black iron

64
Q

Size of pipe for press fittings

A

Copper 1/2-4”
Stainless 1/2-2”
Black iron- 1/2-2”

65
Q

How is annealed copper shipped?

A

In Coils

66
Q

In a mixed commodity where there’s 2 random products what is it classified as ?

A

Highest

67
Q

What kind of joint is referred to as wet to sweat

A

Socket to thread

68
Q

What kind of pipe WAS utilized in press fittings

A

Sch 5

69
Q

What types of copper does annealed come in

A

Types K & L

70
Q

What fitting is best for brazing

A

Wrought

71
Q

Max height for low piled storage

A

12 feet

Crocodiles (8 decks)

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