Pipe Materials and Connections Flashcards by Candice Mae Pableo

ABS

Acrylonitrile-Butadiene-Styrene

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Polybutylene

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Polyethylene

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What pipe is black in color, oval shaped, denoted by OD, and used as a water service connection from main to meter?

A. PVC
B. CPVC
C. PE
D. PB

D. PB

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What pipe is black in color, circular shape, denoted by OD, but cannot be used for hot water system?

A. PVC
B. PE
C. PB
D. CPVC

B. PE

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PVC

Polyvinyl Chloride

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Blue PVC

Potable water piping

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Gray, orange, or brown PVC

Drainpipes manufactured with toxic components

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A ball-shaped end is held in a cuplike shell and allows movements in every direction (flexible)

A. Ball joint
B. Brazed joint
C. Float ball
D. Ballcock

A. Ball joint

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Joining by a melted alloy higher than 449°C

A. Slip joint
B. Brazed joint
C. Soldered joint
D. Welded joint

B. Brazed joint

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Jointing by a melted alloy between 149°c - 427°C

A. Slip joint
B. Brazed joint
C. Soldered joint
D. Welded joint

C. Soldered joint

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Any joint or seam obtained by joining of metal parts in a plastic molten state

A. Slip joint
B. Brazed joint
C. Soldered joint
D. Welded joint

D. Welded joint

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Plugging an opening with oakum, lead or other materials

A. Bell
B. Spigot
C. Oakum
D. Caulking

D. Caulking

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Hemp or old hemp rope soaked in oil or tar to make it waterproof

A. Bell
B. Spigot
C. Oakum
D. Caulking

C. Oakum

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Portion of a pipe which is sufficiently enlarged to receive the end of another pipe of the same diameter for the purpose of making a caulked or push-on joint

A. Bell / Hub
B. Spigot
C. Oakum
D. Caulking

A, Bell/Hub

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CISP with plain ends connected by bolted stainless Steel bands and neoprene gasket

A. Standard pipe
B. Double hub
C. Hubless pipes
D. Single hub

C. Hubless pipes

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An approved elastomeric gasket with an approved outer shield and a tightening mechanism

A. Bell / Hub
B. Spigot
C. Slip joint
D. Shielded coupling

D. Shielded coupling

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An adjustable tubing connection consisting of a compression nut a friction ring, and a compression washer

A. Slip joint
B. Brazed joint
C. Soldered joint
D. Welded joint

A. Slip joint

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What connection is used by hubless pipes?

A. Bell / Hub
B. Spigot
C. Slip joint
D. Shielded coupling

D. Shielded coupling

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End of pipe which fits into the bell/hub

A. Bell / Hub
B. Spigot
C. Slip joint
D. Shielded coupling

B. Spigot

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What seals caulked joints?

A. Bell / Hub
B. Spigot
C. Oakum
D. Lead

D. Lead

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Can cast iron pipes be threaded?

A. Yes
B. No
C. Maybe
D. It depends

B. NO

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Joint for bell & spigot cast iron pipes

A. Caulked joint
B. Brazed joint
C. Soldered joint
D. Welded joint

A. Caulked joint

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CIP generally used for bldg installation

A. SV type
B. XV Type
C. PVC Type
D. UVPC type

A. SV Type

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CIP **extra duty pipe** used for **underground** installation A. SV type B. XV Type C. PVC Type D. UVPC type

B. XV Type

Used for well-fitted hub & spigot connections A. Standard pipe B. Hubless pipe C. Single Hub D. Double Hub

A. Standard pipe

Recommended when the length of the pipe needed is **more than 150 cm long** wherein cutting is NOT necessary A. Standard pipe B. Hubless pipe C. Single Hub D. Double Hub

C. Single Hub

Preferred when a pipe needed is **shorter than 150 cm long.** when pipe is cut, both ends has hub to serve as joint connector A. Standard pipe B. Hubless pipe C. Single Hub D. Double Hub

D. Double Hub

How much is the depth of a molten pig lead? A. 25.4mm B. 3.2mm C. 51 mm D. 19 mm

A. 25.4 mm

How long is the maximum extension of the finished joint below the rim of the hub? A. 25.4mm B. 3.2mm C. 51 mm D. 19 mm

B. 3.2 mm

How long shall cast iron fittings be galvanized? A. 25.4mm B. 3.2mm C. 51 mm D. 19 mm

C. 51 mm

Used in pouring lead into hub until it is even with the top of the hub A. Lead B. Oakum C. Ladle D. Pipe

C. Ladle

What pipe is made from alloy of **cast iron and silicon,** chemical resistant, widely used in chemical laboratories, industries where acid wastes are being discharge? A. Cast Iron Pipe B. Acid Resistant Cast Iron Pipe C. Asbestos Pipe D. Lead Pipe

B. Acid Resistant Cast Iron Pipe

Pipe made of **asbestos fibers** and Portland cement. Superior for embedment in cement structure for having the same material properties A. Cast Iron Pipe B. Acid Resistant Cast Iron Pipe C. Asbestos Pipe D. Lead Pipe

C. Asbestos Pipe

Only allowed for repairs of existing asbestos pipe lines A. Cement Mortar B. Asbestos cement Sewer Pipe Joints C. Oakum D. Lead

A. Cement Mortar

Oldest plumbing material used by Egyptians, Greeks, and Romans. It is highly resistant to acid & suitable for underground installation but poisonous and injurious to human health A. Galvanized Steel Pipe B. Lead Pipe C. Vitrified Clay Pipe D. Bituminous Fiber Sewer Pipe

B. Lead Pipe

Cheapest among the sewer pipes consists of layers of oil tar pitch impregnated ground wood fiber. Famous during 1950s-1960s (post-war) A. Galvanized Steel Pipe B. Lead Pipe C. Vitrified Clay Pipe D. Bituminous Fiber Sewer Pipe

D. Bituminous Fiber Sewer Pipe

How long is a commercial cast iron pipe? A. 1.4 m B. 1.5 m C. 1.6 m D. 1.7 m

B. 1.5 m

Pipe made from clay, durable for underground installation, highly resistant to most acid wastes, brittle, and vulnerable to root infiltration A. Galvanized Steel Pipe B. Lead Pipe C. Vitrified Clay Pipe D. Bituminous Fiber Sewer Pipe

C. Vitrified Clay Pipe

the lower the pipe schedule, the ______

thinner

the higher the pipe schedule, the _____

thicker

NPS ≠ OD

NPS 1/2 to 12

If NPS = OD

NPS 14 and above

SDR

Standard Dimension Ratio

Refers to the ratio of pipe diameter to wall thickness

Standard Dimension Ratio (SDR)

the greater the SDR, the ______

thinner

the lower the SDR, the _____

thicker

Piping used for LPG

Polyethylene (PE)

Type of Polyethylene Pipe which is UV and acid resistant, mostly used for irrigation pipe

Low Density Polyethylene Pipe (LDPE)

Type of polyethylene pipe suitable for hot & cold water, can carry potable water, wastewater, slurries, chemicals, hazardous wastes

High Density Polyethylene (HDPE)

PPR

Polypropylene Random Co-polymer

Lead pipe for Iead safe pans A. 19.56 kg/sqm and 1.6 mm thk B. 19.56 kg/sqm and 1.2mm thk C. 14.63 kg/sqm and 1.2 mm thk D. 14.63 kg/sqm and 3.2mm thk

A. 19.56 kg/sqm and 1.6 mm thk

lead flashing or vent terminals A. 19.56 kg/sqm and 1.6 mm thk B. 19.56 kg/sqm and 1.2mm thk C. 14.63 kg/sqm and 1.2 mm thk D. 14.63 kg/sqm and 3.2mm thk

C. 14.63 kg/sqm and 1.2 mm thk

How thick are lead bends & lead traps?. A. 1.6 mm thk B. 1.2mm thk C. 19 mm thk D. 3.2mm thk

D. 3.2mm thk

Thickness of the exposed surface on each side of a lead pipe joint A. 1.6 mm thk B. 1.2mm thk C. 19 mm thk D. 3.2mm thk

C. 19mm thk

______ shall be lapped and assembly shall be fused to form a uniform weld at least as thick as the lead sheets being joined A. Welded joint B. soldered joint C. Burned Lead Joint D. Wiped joints

C. Burned Lead Joints

Joints in lead pipe or fittings, between lead pipe and brass or copper pipe A. Welded joint B. soldered joint C. Burned Lead Joint D. Wiped joints

D. Wiped joints

Made from mild steel, drawn through a die and welded. Easily corroded by alkaline and acid water. Deteriorates faster when used as hot water supply line A. Galvanized Steel Pipe B. Lead Pipe C. Vitrified Clay Pipe D. Bituminous Fiber Sewer Pipe

A. Galvanized Steel Pipe

commercial length of galvanized steel pipe A. 5.00 m B. 6.00m C. 7.00m D. 8.00 m

B. 6.00 m

Better in quality than steel pipe and more resistant to acid waste than steel pipe A. Brass Pipe B. Copper pipe C. Galvanized Wrought Iron Pipe D. Plastic or Synthetic Pipes

C. Galvanized Wrought Iron Pipe

Property refering to being resistant to compressive forces

Maleable

Resistant to tensile forces

Ductile

One of the most expensive types of pipe. Made of alloy or zinc and copper mixed at 15% and 85% proportion respectively A. Brass Pipe B. Galvanized Wrought Iron Pipe C. Copper Pipe D. Plastic or Synthetic Pipe

A. Brass Pipe

Better in quality than steel pipe, more resistant to acid waste than steel pipe A. Brass Pipe B. Galvanized Wrought Iron Pipe C. Copper Pipe D. Plastic or Synthetic Pipe

B. Galvanized wrought Iron Pipe

percentage mixture of zinc on brass pipe A. 15% B. 50% C. 85% D. 90%

A. 15%

percentage mixture of copper on brass pipes A. 15% B. 50% C. 85% D. 90%

C. 85%

Durable and extremely corrosive resistant material. Installed without joints and thus have lesser leaks. Can be used for hot & cold water supply lines A. Brass Pipe B. Galvanized Wrought Iron Pipe C. Copper Pipe D. Plastic or Synthetic Pipe

C. Copper Pipe

Hard tube copper pipe. Joined by soldering

Drawn tube

Soft tube copper pipe. Joined by flared joints

Annealed tube

Width of the indelibly colored stripe marking on copper pipes A. 3.2mm B. 6.4 mm C. 1.2 mm D. 1.6 mm

B.6.4 mm

Copper pipes used for air-conditioning and refrigeration A. Arc tubes B. DWV tube C. K tube D. L tube

A. Arc tube

copper pipes for underground and above ground drainage & vent pipings A. M tube B. DWV tube C. K tube D. L tube

B. DWV tube

copper pipes suitable for underground. heaviest type A. M tube B. DWV tube C. K tube D. L tube

C. K tube

copper pipes for minimum weight of water supply piping, commonly used in residential water supply line and for radiant heating installation A. M tube B. DWV tube C. K tube D. L tube

D. L tube

Copper pipe used for water piping when piping is above ground inside or a top a bldg or underground outside of structures. thinnest copper pipe available only in rigid form A. M tube B. DWV tube C. K tube D. L tube

A. M tube

_____ shall be installed without joints where possible. A shall be fully externally protected with bitumastic coating and fiberglass wrapping and installed inside a split rigid casing wherever installed underground

copper tubing

joints for soft copper water tubing

Flared joints

Joints in copper tubing shall be by brass or copper fittings

Solder and sweat joints

Allowable lead content in solder and fluxes for piping systems in potable water A. 15% B. 0.002 or 2% C. 20% D. 12%

B. 0.002 or 2%

Solder is uniform, no crack between pipe and fitting

Good solder joint

No solder, crack shows between pipe and fitting

Bad solder joints

Developed in Germany in 1935 A. Galvanized Wrought Iron Pipes B. Galvanized steel Pipes C. Plastic or Synthetic Pipes D. Lead Pipes

C. Plastic or synthetic pipes

Should only be applied on male thread

Pipe joint material

What is the minimum wall thickness for threaded plastic pipe?.. A. Schedule 40 B. schedule 80 C. schedule 100 D. Schedule 120

B. Schedule 80

A strong rigid, and economical plastic pipe with maximum service temperature of **140°F (60°C)** A. Polyvinyl chloride B. Acrylonitrile-butadiene-styrene C. chlorinated polyvinyl chloride D. Unplasticised polyvinyl chloride

A. Polyvinyl chloride

A rigid pressure piping system renowned for its high impact strength and durability which combined to give exceptional toughness. Has a maximum service temperature of **160°F (71.1°C)** A. Polyvinyl chloride B. Acrylonitrile-butadiene-styrene C. chlorinated polyvinyl chloride D. Unplasticised polyvinyl chloride

B. Acrylonitrile-butadiene-styrene

Similar to PVC in strength and overall chemical resistant and has a maximum service temperature of **180°F (82.2 °C)**, may be used for **hot & cold water distribution** A. Polyvinyl chloride B. Acrylonitrile-butadiene-styrene C. chlorinated polyvinyl chloride D. Unplasticised polyvinyl chloride

C. Chlorinated polyvinyl chloride

strong, low maintenance, and lightweight plastic building material which is okay under prolonged exposure to sunlight A. Polyvinyl chloride B. Acrylonitrile-butadiene-styrene C. chlorinated polyvinyl chloride D. Unplasticised polyvinyl chloride

D. unplasticised polyvinyl chloride

Very lightweight material suitable for **low pressure applications**, has a maximum service temperature of **180°F (82.2 °C)** used widely for **industrial & laboratory** drainage acids, bases and many solvents A. polypropylene B. Kem-Temp polyvinylidene fluoride C. Fiberglass-reinforced plastic epoxy D. unplasticised polyvinyl chloride

A. polypropylene

Strong, tough, and abrasive-resistant fluorocarbon material with a maximum service temperature of **280°F (138°C)** A. polypropylene B. Kem-Temp polyvinylidene fluoride C. Fiberglass-reinforced plastic epoxy D. unplasticised polyvinyl chloride

B. Kem-Temp polyvinylidene fluoride

high strength, good chemical resistant with a maximum service temp of 280°F (138°C) A. polypropylene B. Kem-Temp polyvinylidene fluoride C. Fiberglass-reinforced plastic epoxy D. unplasticised polyvinyl chloride

C. Fiberglass-reinforced plastic epoxy

What is the maximum service temperature of PVC ?

140°F (60°C)

What is the maximum service temperature of ABS ?

160°F (71.1°C)

What is the maximum service temperature of PVDF ?

280°F (138°C)

PVDF

kem-temp polyvinylidene fluoride

____________ provide protection restricted to short pipe lengths at a points of connection with fittings necessarily stripped for threading and jointing

field bitumastic coating and wrapping

Copper tubing shall be fully externally protected with ___________ and installed inside a split rigid casing whenever installed underground

bitumastic coating and fiberglass wrapping

not adequate outside protection for ferrous piping or fittings

zinc coating (galvanized)

protection from **breakage** for piping **passing under or through walls**

embedded metal pipe sleeve

protection from external corrosion for pipes passing through or **under cinders** or other corrosive materials

polyethylene sheath

Protection for voids between pipes and sleeves through concrete floors in the ground

Bitumen

Protection for pipes directly embedded in concrete and masonry walls

Metal sleeve

Distance of bottom of all pipe trenches to the footing of any adjacent bldg or struc. and parallel to it. Also called as the "Angle of Repose". This needs stable soil/flooring/ground

45°

maximum intervals of pipe supports

4 ft or 1.2m

For B& S hubless CISP, vertical supports are added at _______

every storey / closer or every floor

for CSP, horizontal pipe supports where joint occurs are added at _________

maximum 1.5m; if more than 1.5m then 3m

For CISP, horizontal pipe supports at support location are added at _________

0.45m from hub or joint; each horizontal branch connection

For hubless/compression gasket CISP, horizontal pipe supports are placed at _________

Every other joint, if more than 1.2m dev't length, each joint

For screwed pipe (IPS), vertical supports are placed at _________

every other storey

For 19 mm dia. screwed pipe, horizontal supports are placed at _______

For 25 mm dia. (and up) screwed pipes, horizontal supports are placed at _______

3.6m

For copper tubing, vertical supports are placed at _______

each storey max of 3m

For copper tubing of 38 mm dia. and less, horizontal supports are placed at _______

1.8 m

for 51 mm dia. and up copper tubing, horizontal supports are placed at _______

For lead pipe, vertical supports are placed at _______

Max. 1.2m o.c. with rigid back-up

For lead pipe, horizontal supports are placed on _______

stiff metal or wooden backing for entire length w/ hanger property spaced

For plastic pipes, vertical supports are placed at _______

every 1m

For 38mm dia. and less plastic pipes, horizontal supports are placed on _______

stiff metal or wood backing with hanger in length

For 51 mm dia. plastic pipe, horizontal supports are placed _______

without backings but with spaced metal hangers

For pipes in ground, supports are laid on ________ for its entire length

firm bed

Hangers and straps shall not compress, distort, cut or abrade the piping and shall allow ________ of pipe

free movement

In general, vertical piping shall be supported at ________

each story or floor level

device used to maintain alignment of vertical piping between floors

mid-story guide

where should you put supports for trap arms?

3 ft or 914 mm in length as close as possible to the trap

where should you put supports for trap arms?

3 ft or 914 mm in length as close as possible to the trap

thrust blocks shall be installed at A. changes in direction (tees and bends) B. changes in size (reducers C. stops or dead ends D. Valves, where thrusts may be expected E. None of the above F. All of the above

F. All of the above

also known as connections/covers

FITTINGS

a fitting, screwed or caulked over the end of pipe for closing the pipe end

CAP

pipe flange that is **not drilled for bolt holes**

BLANK FLANGE

flange that closes the end of pipe where there is **no opening for passage of liquid or gas**

BLIND FLANGE

fitting with adjacent reverse bends and shaped like the letter "S"

DOUBLE-BEND FITTING

**two offsets in succession** or in series such that the centerlines of the outside ends are in the same straight line

DOUBLE OFFSET

**combination of elbows or bends**, which brings one section of the pipe out of line but into a line parallel with the original section

OFFSET

an open return bend usually made up of two 90° bends

RETURN BENDS

a tee with the branch **tapped to receive** a threaded pipe or fittings

TAPPED TEE

hose connection with **two-gated outlets** permitting two connections

WYE

IAPMO

International Association of Plumbing & Mechanical official

A type of pipe joinery which is by means of **flexible compression joints**

Flexible Compression Factory-Fabricated Joints

A type of joinery by means of molded **neoprene rubber coupling joints**

Molded rubber coupling joints

A **mechanical connection** which depends on **internal retention device** to prevent pipe or tubing separation

Pressure-Lock Type Connection

How long is a commercial PE and PB tubes?

30 meters

What are the **flexible type** of plastic pipes?

PE & PB

What are the **flexible type** of plastic pipes?

PE & PB

One of the considerations with *working with galvanized steel pipe* which refers to the manner of **planning the layout and rerouting the pipes to reach the point of service**

DIRECT CONNECTION

One of the considerations with *working with galvanized steel pipe* wherein errors committed may mean **additional pipes and fittings, cost of labor, and the risk of water leakage**

MEASURING & CUTTING

One of the considerations with *working with galvanized steel pipe* wherein **steel pipe should be held rigidly with proper holding tools.** It is done by using a 14 teeth per inch hacksaw blade and applying forward strokes at the rate of about one stroke per second. The burrs are removed from the inside edge of the pipe with files or reamers

CUTTING & THREADING OPERATIONS

What is the **most suitable cutting tool for copper pipes**?

ROTARY TUBE CUTTER

In the absence of a rotary tube cutter, what cutting tool is used for **heavy copper pipes**?

24 teeth per inch hacksaw blade

In the absence of a rotary tube cutter, what cutting tool is used for **thin copper pipes**?

32 teeth per inch hacksaw blade

What cutting tool is used for cutting **galvanized steel pipe**?

14 teeth per inch hacksaw blade

What is the simplest way of joining plastic pipes?

SOLVENT WELDING

What is the minimum pipe outlet for gas appliance?

1/2"

What material is used for gas appliance piping outlet?

Galvanized steel or Black Steel Pipe

what is the material for medical gas tube?

Type K or L in drawn tube only

gas vents suitable only for listed **draft-hood** equipped, gas-fired appliances

Type B

gas vents suitable for gas-fired vented **wall furnaces or recessed heaters**

type BW

gas vents suitable for **positive or negative pressure venting gas** appliances producing flue gasses at class I (up to 245°C) or class II (up to 135°C) temperatures

Type BH

gas vents suitable for **oil-fired and natural-gas appliances** that produce draft hood flue gasses that do not exceed a tempo 570°F (299 °C) or 926°F (497°C)

type L

gas vents suitable for only as **connectors** and for venting gas or oil

Type C

Pipe Materials and Connections Flashcards

(159 cards)