Cast Iron, Iron pipe & historic pipe

Question 1

what is glass pipe commonly used for

Answer 1

• corrosive waste for laboratories

- food processing plants

Question 2

can 6 in Pyrex glass pipe can be used in pressure applications

Answer 2

false

Question 3

what does a SHCISP mean

Answer 3

single hub clay and iron soil pipe

Question 4

cast iron has________ to give it strength and ductility

Answer 4

magnesium

Question 5

what are three types of cast iron soil pipes

Answer 5

no hub, one hub, two hubs

Question 6

what is a 22.5 degree elbow

Answer 6

1 sixteenth bend

Question 7

what are all joining methods for hub & spigot cast iron soil pipe

Answer 7

caulked lead
hot poured joints
cold caulked joints
compression joints

Question 8

what are all types of clean outs one will find in a cast iron soil piping system

Answer 8

line clean out
Barrett clean out
bolt top
screwed top

Question 9

caulking lead must be _____ pure

Answer 9

99.73%

Question 10

when tightening mechanical joints, you should torque screws

Answer 10

55-60 pounds per sq in

Question 11

cast iron soil fittings have pressure rating of

Answer 11

350 psi

Question 12

cast iron pipe is coated on inside and out with _____ to increase corrosion resistance

Answer 12

bitumen

Question 13

two methods of cutting cast iron pipe are

Answer 13

snap cutters and hammer or chisel

Question 14

minimum dimensions of flashing in Alberta

Answer 14

20in x 20in (500mm x 500mm)

Question 15

when fasteners are to be placed in a wall, ceiling or floor, consideration must be given to

Answer 15

unseen hazards in the base material

Question 16

what does the term deflection refer to

Answer 16

deviation from the center line or snaking of the pipe between hangers

Question 17

which screw has the greatest mechanical advantage

Answer 17

sheet metal screws cause the threads are closer

Question 18

fastener anchor catergories are divided into

Answer 18

light and heavy duty anchors

Question 19

pipes are supported in order to

4 reasons

Answer 19

carry weight of pipe and contents
help grade the piping system with adequate slope
prevent sagging or deflection
allow thermal movement of the piping system

Question 20

welded steel brackets are recommended for loads up to 3000 lbs
T,F

Answer 20

true

Question 21

ready rod comes in what dimensions

Answer 21

quarter, half, three quarter and five eighths inches

Question 22

oxidation is accelerated by an increase in temperature

T,F

Answer 22

True

Question 23

electrolysis is corrosion in the presence of very mild acidic water and electrical current generated by the water movement
T,F

Answer 23

True

Question 24

what is installed to control electrolysis

Answer 24

dielectric union, nipple, bushing

Question 25

clips and strapping are usually used on pipe diameters up to 4in T,F

Answer 25

true

Question 26

which support have the largest capacity for load

Answer 26

beam clamp

Question 27

snap-in pipe protectors are used for

Answer 27

isolation the piping from steel studs

Question 28

U-bolt are used for support and thermal expansion of pipe | T,F

Answer 28

true

Question 29

why are protective coatings applied to hangers

Answer 29

to protect the hangers and piping

Question 30

clevis hangers are widely used as they can be adjusted | T,F

Answer 30

true

Question 31

another name for Unistrut

Answer 31

power strut

Question 32

Can. Plumbing code states Cast iron pipe not approved for residential service T,F

Answer 32

False

Question 33

cast iron pipe has a

Answer 33

high carbon content

Question 34

no hub soil pipe is joined by

Answer 34

MJ clamp

Question 35

a one sixteenth bend is equivalent to

Answer 35

22.5 degrees

Question 36

when installing hub and spigot pipe, the hub is always placed

Answer 36

downstream

Question 37

cast iron pipes is never used for portable water applications T,F

Answer 37

False

Question 38

dust, fumes and chemicals are common hazards associated with ______pipe

Answer 38

fiberglass

Question 39

common use of lead in plumbing

Answer 39

no longer used

Question 40

one pound of lead gives you a sheet 1'x1'x_____ thick

Answer 40

one sixty-fourth

Question 41

historical pipe manufactured from coal tar pitch and cellulose fibers is

Answer 41

bitimus fiber pipe

Question 42

pipe that will carry all known chemicals except hydroflouric acid is

Answer 42

vitrified clay pipe

Question 43

aluminum pipe requires what

Answer 43

isolated hangars

Question 44

transite and century are trade names for _____ pipe

Answer 44

AC

Question 45

when cutting AC pipe ______ protection is of the utmost importance

Answer 45

respiratory

Question 46

always ensure you ____ the gasket prior to joining bell and spigot plastic pipe

Answer 46

lubricate

Question 47

origin of term plumber

Answer 47

lead worker

Question 48

In what way does Duriron differ from gray cast iron?

Answer 48

Silicon is added, increased corrosion resistance, more brittle and had had a higher rate of expansion

Question 49

List the weight of cast iron approved for use in Alberta

Answer 49

18 kN

Question 50

Ductile iron pipe

Answer 50

Adding an inoculate, usually magnesium, additional strength, toughness and ductility

Question 51

Carbon can be found in cast iron in two ways

Answer 51

Graphite | Chemically dissolved

Question 52

Characteristics of gray iron

Answer 52

- High resistance to wear - Good corrosion resistance - Low rate of thermal expansion - easily cast at Temp. Around 1315*C (2400*F) - poor resistance to shock (fractures easily)

Question 53

Size and lengths for SHCISP

Answer 53

2", 3", 4" and 6" | 5' and 10'

Question 54

MJ soil pipe size and length

Answer 54

1 1/2", 2", 3" and 4" | 10' lengths

Question 55

What are prime qualities of Oakum and Lead

Answer 55

Extremely rigid, has sufficient flexibility to permit a slight deflection the joint without breaking hub or damaging the seal

Question 56

Tools and equipment for Oakum and leaf

Answer 56

- Yarning/packing iron | - asbestos pouring rope (running rope)

Question 57

What tools and equipment are needed to prepare lead for Oakum and Lead

Answer 57

- 99.73% pure lead - 10-pound notched bars - 25-pound strings

Question 58

What temp does Lead have to be at preparation for Oakum lead

Answer 58

327*C | 620*F

Question 59

Cold/damp Lead or moisture on the ladle with hot lead can cause

Answer 59

Lead to explode and may result in possible injury to anyone around

Question 60

When inserting the spigot end of a pipe or fitting into a hub you need to?

Answer 60

Properly centre and bottom the spigot, to prevent Oakum from being forced into the pipe

Question 61

Yarn and Oakum does what for joints and pipe

Answer 61

Retains molten lead, seals the joint, centres the pipe and gives the joint flexibility

Question 62

The weight of Oakum in a joint is

Answer 62

1/10th of the weight of the require lead. Required lead in a joint 3/4 pound per inch diameter

Question 63

Cast iron water service piping is designed for

Answer 63

Pressure water installations. Raw potable water systems, slurries and process piping systems. May be used for sewage system that have a pressure requirement

Question 64

Cast iron soil pipe have no

Answer 64

Pressure rating and are used in drainage, waste and vent piping system.

Question 65

What is the lowest and highest rating on compression or push-on joint

Answer 65

350 psi | Ductile iron pipe push-on joints operating pressure 1000psi

Question 66

All mechanical couplings used for joining hubless pipe

Answer 66

Must be approved for pressure application

Question 67

What size of glass pipe is rated at 100 psi

Answer 67

1/2", 3/4" 1"

Question 68

What size of glass pipe is rated at 75 psi

Answer 68

1 1/2", 2", 3"

Question 69

What size of glass pipe is rated at 50 psi

Answer 69

4"