Copper

Front 1

List the color cool that indicates the following types of copper tube

DWV, Type L, Type K, Type M

Back 1

Yellow, blue, green, read.

Front 2

List 3 Advantages of copper tube over steel pipe.

Back 2

Ductility, malleability, corrosion resistance.

Front 3

List 3 Types of copper tube KL and M in order of their wall thickness. and state the wall thickness for half inch tube in each case

Back 3

Type K 0.049"

Type L 0.040"

Type M 0.028"

Front 4

List 3 applications of DWV copper tube and the piping trade

Back 4

Drainage waste and ventilation

Front 5

List the applications of type K copper tube in piping trades

Back 5

Water service lines, water distribution systems, low pressure steam lines, heating systems, gasfitting, DWV, 02 and other specialized hospital piping systems, oil piping systems.

Front 6

List the application of type L copper tube in both The gas industry and plumbing

Back 6

Gas industry - below grade piping if factory coated, above ground for all systems up to one and a quarter inches NPS. Plumbing - DWV, water service, water distribution.

Front 7

What is the main application of type M copper tube

Back 7

Residential and light commercial in building water and heating lines

Front 8

In what ways does soft temper copper tube differ from hard temper copper tube

Back 8

Soft copper can be bent without the use of special bending tools

Front 9

What is the greatest disadvantage of copper pipe over iron or steel pipe

Back 9

Higher rate of expansion

Front 10

What precautions should be observed to overcome sag in copper tubing over a long horizontal run of soft temper cover tube.

Back 10

Use more hangers and closer spacers

Front 11

In what sizes is DWV tube manufactured

Back 11

One and a quarter inch through 6", in straight lengths of 12' and 20'

Front 12

What are the minimum sizes of tube made in the following types type M, Type K, type L, type DWV.

Back 12

Type M 1/4" , type K 1/4" , type L 1/4", type DWV 1 1/4"

Front 13

What is the essential difference between oxygen tube and regular type K or L tube

Back 13

Oxygen tube is cleaned and capped.

Front 14

Copper pipe is made from 99.7% pure copper. Explain what 99.7% pure copper means.

Back 14

The copper only has 0.3% impurities

Front 15

Copper is used with other metals to form metallic alloys. Stare the metallic composition of:

Yellow brass

Red brass

Bronze

Back 15

Yellow brass - 66% copper and 34% Zinc

Red brass - 85% copper and 15% zinc

Bronze - 90% copper and 10% tin

Front 16

List the types of copper tube used for the following applications heart and cooled water lines, drainage waste and vent lines, water heating system, steam heating system, underground gas lines

Back 16

Hot and cold water lines KLM

DWV lines - KLM

Water heating - KLM

Steam heating system - KL

Underground gas lines -Type K soft factory coated Type L soft factory coated and type G

Front 17

What does the abbreviations S. P. S. Mean when applied to copper pipe

Back 17

Standard pipe size/steel pipe size

Front 18

Copper tube is lighter than the same size steel pipe but copper is heavier than steel explain

Back 18

Copper has A thinner wall thickness than steel pipe and copper has a greater relative den sity than steel.

Front 19

What is the coefficient of expansion for copper

Back 19

0.0000171ﾟC or 0.0000095ﾟF

Front 20

Copper pipe is measured by its________ Up to__________ and by its actual______________for__________ and over.

Back 20

Inside diameter, 12" NPS, outside diameter,14" and over.

Front 21

Copper tube is measured by its approximate

Back 21

Inside diameter NPS.

Front 22

Copper tubing is measured by its actual

Back 22

Outside diameter

Front 23

Can copper DWV be used for all above ground fixture drains

Back 23

No, the national plumbing code of Canada States that copper tube shall not be used for the fixture drain or the portion of the vent below the flood level rim of a flush valve operated urinal

Front 24

Copper tube used on drainage and venting can be joined by the following methods

Back 24

Soldering or mechanical joint coupling - Franco coupling

Front 25

Copper tube used for above ground water lines can be joined by the following methods

Back 25

Soldering, flared fittings, compression fittings, braising.

Front 26

Copper wrot fittings are considered better than cast brass fittings for soldering why?

Back 26

Cast brass fittings have pin holes or sand holes in their casting that do not show up upon installation or testing. Wrot copper fittings Do not have the same chance of having these pinhole problems.

Front 27

Water lines connected to some plumbing fixtures utilize a flexible tube or speedy connector. What type of seal as used on one of these?

What is the minimum diameter allowed

The plumbing code also stipulates a maximum length which is__________. Clause:_________.

Back 27

Compression ferrule

Front 28

A tylok fitting differs from a standard compression fitting. Explain the difference

Back 28

A tylok uses an additional ferrule.

Front 29

With a sketch show the difference between a single and a double flair

Back 29

Front 30

What angle of flair is utilized in the piping trade

Back 30

45ﾟ

Front 31

What does an adapter listed as 3/4 inch copper to 3/4 inch MIP indicate

Back 31

3/4 inch female cup solder joint 2 3/4 inch male iron pipe connection

Front 32

List 3 methods of joining copper Tube

Back 32

Soldering, flaring, compression.

Front 33

What are the maximum temperatures of substances that are conveyed in a soft soldiered pipeline and the maximum steam pressure

Back 33

121ﾟC, 15PSIG.

Front 34

List 3 factors that would have a direct effect on the maximum pressure that could be carried in a soft soldier pipeline

Back 34

Temperature of the fluid in the line, size of the tube, type of soldier.

Front 35

List the proper steps for making a good soldier joint

Back 35

Measure, mark, cut, Ream, clean tube and fitting , flux tube and fitting, assemble and heat, soldier, wipe clean.

Front 36

Soldier designated as 50-50 indicates. Sold are designated as 95-5 indicates

Back 36

5050 indicates 50% tin and 50% lead 95 - 5 indicates 95% tin and 5% antimony

Front 37

List two other names for mushy range

Back 37

Plastic, pasty.

Front 38

State the meaning of a eutectic composition and whether this is a practical solder for making a solder joint

Back 38

Those specific alloy compositions that melt at 1 temperature and not over a range. In this respect, these Alloway's behave like pure metals and are not practical for making a soldered joint.

Front 39

State the liquidest temperature of 95 - 5

Back 39

240

Front 40

State the liquid is temperature of 50 - 50

Back 40

215ﾟC

Front 41

State the liquid is temperature of tin

Back 41

230ﾟC

Front 42

State the liquidis temperature of lead

Back 42

327ﾟC

Front 43

State the liquidest temperature of envirobright

Back 43

335ﾟC

Front 44

State the liquid is temperature of BRIDGIT

Back 44

332ﾟC

Front 45

Why is it important to ream pipe?

Back 45

If the plate is not reamed, internal borders Can ; restrict the bore of the tube, causing excessive pressure loss; Cause turbulent flow in the pipe, which can result in a water hammer condition and cause local erosion of the tube And catch for and matter and create a stoppage.

Front 46

List the 2 primary purposes of fluxing

Back 46

Wetting the joint and preventing oxidize ation of the medals

Front 47

List 3 different types of torches that are used for soldering.

Back 47

Acetylene, propane, MAPP gas, butane, gasoline.

Front 48

What is the purpose of a regulator on a soldering torch

Back 48

To lower the tank pressure to the desired hose or working pressure

Front 49

What are the components of red brass pipe and what method is used to join it

Back 49

85% tin and 15% zinc, threading.

Front 50

What are the joining methods for copper

Back 50

Flared compression and solder.

Front 51

How much solder used for a 1"

Back 51

1" of solder.