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40 Cards in this Set

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Can D.W.V copper be used for all above ground fixture drains


No. Copper tube shall not be used for the fixture drain or portion of the vent below the flood level rim of a flush valve operated urinal

What three factors effect the maximum pressure allowed in a soft solder pipeline (3)

1. Fluid temperature
2. Tube size
3. Solder type

What is the formula for expansion

Coefficient of expansion X temperature differential X lenght

What purpose does the regulator serve on a soldering torch

To lower the tank pressure to the desired hose working pressure

What is the liquidus temperature of lead

327 degrees Celsius


or


629 degrees Fahrenheit

What is the liquidus temperature of envirobrite

335 degrees Celsius


Or


635 degrees Fahrenheit

What is the liquidus temperature of 95-5

240 degrees Celsius


Or


464 degrees Fahrenheit

What is the liquidus temperature or tin

230 degrees Celsius


Or


450 degrees Fahrenheit

What is the liquidus temperature of 50-50

215 degrees Celsius


Or


420 degrees Fahrenheit

What are the applications of copper pipe (7)

1. Hot water heating
2. Cold & hot water supply systems
3. Gas systems
4. Steam heating systems
5. Drainage waste and venting systems
6. Refrigeration systems
7. Fire sprinkler systems

What are the disadvantages of copper pipe (2)

1. High initial cost I'm material and labor
2. Expansion factor ( expands twice as much as steel)

What are the advantages of copper pipe (4 )

1. Corrosion resistance
2. Lightweight
3. Easily bent around obstructions
4. Less flow restriction

What are the types of copper fittings (3)

1. Soldered
2. Flared
3. Compression

What are the types of copper (7)

1. Type K - green
2. Type L - blue
3. Type M - red
4. Type D.W.V - yellow
5. Type H - white ( hot water heating)
6. Type ACR - (sized in O.D)
7. Type G - green (general purpose for gas )

What are the types of copper joining methods (5)

1. Flared ( underground water service)
2. Compression ( fixture connections)
3. Brazed ( medical gas & refrigeration)
4. Soldered ( above ground installation)
5. Threaded ( found on adapters male & female)

How are the different kinds of copper sized

1. Pipe measured in N.P.S
2. Tube measured in N.P.S
3. Tubing measured in O.D

Pipe tube and tubing

What is the coefficient of expansion for bronze

0.0000099

What is the coefficient of expansion for brass

0.0000189

What are the fluxes used on copper, brass, bronze, and monel metal made of

Zinc Chloride

Can D.W.V fittings be used on pressure systems & pressure fittings on D.W.V

No D.W.V on pressure systems but pressure fittings can be used on D.W.V

Are ferrule sleeves & nuts interchangeable

No they are not

What are the temperatures for hard soldering and soft soldering

Hard soldering 575 degrees Celsius or 1000 degrees Fahrenheit and above



Soft soldering 575 degrees Celsius or 1000 degrees Fahrenheit and below

What factors should be considered when selecting solder (3)

1. Maximum temperature
2. Maximum pressure
3. Pipe size

High pressure compression fittings are rated up to

1000 PSI

What is the term for solder that is neither solid nor liquid

Plastic or mushy

What angles are flares done at (2)


37 degrees for automotive


Or


45 degrees for plumbing

Flow rates in copper are _________% better than steel

20%

DWV copper specs

1. Color code
2. Available pipe sizes
3. Available Lenghts rigid
4. Available Lenghts soft temper
5. Uses
6. Other
1. Yellow
2. 1 1/4" to 6"
3. 12 ft and 20 ft
4. Not available
5. Above ground only
6. 3" used because it fits in 2x4 walls

Type H copper specs

1. Color code
2. Available sizes
3. Available Lenghts
4. Other
1. White
2. 1/2", 3/4", 1"
3. 12 ft length
4. Used in hot water heater no longer used other than in finned tube

What is the minimum size of type M copper

1/4"

What is copper greatest disadvantage over steel

Expansion rate

What type of copper can be bent without the use of a tool

Copper tubing

What type of flare is best for thin walled pipe

Double flare

What is the maximum temperature and pressure rating for a soft soldered copper line

1. 121degrees C or 250 degrees Fahrenheit
2. 15 psig steam

What are the four torch types used in soldering

1. Acetylene (C2H2)
2. Propane (C3H8)
3. Butane (C3H10)
4. MAAP gas (C3H4)

Three advantages of copper over steel

1. Malleability
2. Ductility
3. Corrosion resistance

What is another name for copper DWV fittings

Streamline fittings

Type M copper specs

1. Color code
2. Available sizes
3. Available Lenghts rigid
4. Available Lenghts soft temper
5. 1/2" wall thickness
6. Uses
1. Red
2. 1/2" to 12"
3. 12 ft and 20 ft
4. Not available
5. 0.028
6. Hot and cold distribution, heating, DWV

Ratios for brass fittings

1. Red brass
2. Yellow brass
1. 85% copper 15% zinc
2. 66% copper 34% zinc

(Brass pipe more than 35% zinc is not suitable for plumbing

Type K copper specs

1. Color code
2. Available sizes
3. Available Lenghts rigid
4. Available Lenghts soft temper
5. Wall thickness of 1/2"
6. Uses
1. Green
2. 1/4" to 12"
3. 12 ft and 20 ft
4. 100 ft
5. 0.049
6. Water service, low pressure steam, heating systems, gas fitting, DWV, hospital piping, oil piping