Weekly Test 2 - PLUMBING CODE II

Atmospheric Vacuum Breaker

Consist of a body, a checking member, and an atmospheric opening.

a. Pressure Vacuum Breaker

b. Reduced Pressure Principle Backflow Prevention Assembly

c. Double Check Valve Backflow Prevention Assembly

d. Atmospheric Vacuum Breaker

Double Check Valve Backflow Prevention Assembly

Consists of two independently acting internally or externally loaded check valves four properly located test cocks with connectors and two isolation gate valves.

a. Pressure Vacuum Breaker

b. Reduced Pressure Principle Backflow Prevention Assembly

c. Double Check Valve Backflow Prevention Assembly

d. Atmospheric Vacuum Breaker

Pressure Vacuum Breaker Backflow Prevention Assembly

consists of a loaded air inlet valve, an internally loaded check valve, 2 properly located test cocks and 2 isolation gate valves.

a. Pressure Vacuum Breaker Backflow Prevention Assembly

b. Reduced Pressure Principle Backflow Prevention Assembly

c. Double Check Valve Backflow Prevention Assembly

d. Atmospheric Vacuum Breaker

Reduced Pressure Principle Backflow Prevention Assembly

consists of 2 independently acting internally loaded check valves, a differential pressure relief valve, 4 properly located test cocks and 2 isolation gate valves

a. Pressure Vacuum Breaker

b. Reduced Pressure Principle Backflow Prevention Assembly

c. Double Check Valve Backflow Prevention Assembly

d. Atmospheric Vacuum Breaker

13 mm or 1/2''

Hanger rod size for 5'' pipe size.

a. 13 mm

b. 16 mm

c. 10 mm

d. none

19 mm

What is the min. supply size for urinal stall?

a. 10 mm

b. 25 mm

c. 13 mm

d. 19 mm

Gauge 20 (0.8 mm)

Thickness of Continuous waste and fixture tailpiece- seamless drawn brass.

a. Gauge 24 ( 0.5 mm )

b. Gauge 16 (1.6 mm )

c. Gauge 12 ( 2.77 mm )

d. Gauge 20 ( 0.8 mm )

Gauge 24

Thickness of copper pans or liners for shower subpans.

a. Gauge 24 ( 0.5 mm )

b. Gauge 16 (1.6 mm )

c. Gauge 12 ( 2.77 mm )

d. Gauge 20 ( 0.8 mm )

Gauge 16

thickness of restaurant kitchen and other special-use sinks, bonderized and galvanized sheet steel

a. Gauge 24 ( 0.5 mm )

b. Gauge 16 (1.6 mm )

c. Gauge 12 ( 2.77 mm )

d. Gauge 20 ( 0.8 mm )

Gauge 26

thickness of galvanized sheet metal for downspout or conductor

a. Gauge 26 ( 0.5 mm )

b. Gauge 16 (1.6 mm )

c. Gauge 12 ( 2.77 mm )

d. Gauge 20 ( 0.8 mm )

103 kpa (or 15 psi)

this refers to the minimum water pressure, otherwise a tank or a booster pump must be installed.

a. 103 kpa

b. 80 psi

c. 500 kpa

d. 60 psi

80 psi

A pressure regulator must be installed if the local water service pressure is above ____

a. 103 kpa

b. 80 psi

c. 500 kpa

d. 60 psi

0 to 63. 5 cm

Airgap less than 25 mm shall only be approved as a permanent part of a listed assembly that has been tested under actual backflow conditions with vacuums from _____ of mercury.

a. 0 to 6.35 cm

b. 0 to 63. 5 cm

c. 0 to 63. 5 mm

d. 0 to 63. 5 m

Decrease in DFU loading

What will happen if a drainage piping is placed at slope of 10mm/m due to structural conditions?

a. Decrease in DFU loading

b. Increase in DFU loading

c. Increase in drainage piping length

d. Decrease in drainage piping length

3: WSFU of Public Hose Bibb or Sill cock

WSFU of private hose bibb?

a. 10

b. 3

c. 2.5

d. 5

2.5

WSFU of Water closet ( ecomical flush )

a. 10

b. 3

c. 2.5

d. 5

10

WSFU of urinal pedestal, flushing rim slink

a. 10

b. 3

c. 2.5

d. 5

135 deg.

additonal:

cleanouts may be omitted on short horizontal drainage pipe installed at 72 deg or less from the vertical line.

An additional cleanout shall be provided on a horizontal line with an aggregate offset angle of direction exceeding ___

a. 72 deg

b. 135 deg

c. 210 deg

d. 90 deg

White

note:

High Pressure Steam ( Yellow ) - The answer might depend on the choices given. The examiner will base on the OLD NBC since the questions are included in the question bank.

color of steam division high pressure pipe.

a. buff

b. gray

c. black

d. white

Buff

steam division exhaust system.

0.2 %

Potable water shall use solders and fluxes with a lead content not exceeding ______

a. 2%

b. 0.8 %

c. 8%

d. 0.2 %

8%

max. lead content allowed in water pipes and fittings.

3. 965

additional:

1 Kcal = 4184 Joule

1 Kcal = 4.184 Kjoule

1 Kcal is how many BTU

a. 3.965

b. 4184

c.4.184

d. none

Evaporative Cooler

additional info:

all food equipment such as cold storage room, refrigerator, cooling counter, compartment for storage or holding of food or drink, dishwashing or culinary sink must discharge through an airgap.

Which of the ff. can be drained through an air break?

a. refrigerator

b. evaporative cooler

c. dishwasher

d. culinary sink

305 mm

A double check valve backflow preventer requires _____ minimum clearance at the bottom for maintenance.

a. 305 mm

b. 150 mm

c. 600 mm

d. 200 mm

38 mm I.D

Each tailpiece, continuous waste or waste and overflow shall NOT be less than -__ for sinks, dishwashers, laundry tubs bathtubs, urinals and similar fixtures.

a. 38 mm I.D

b. 21 mm O.D

c. 38 mm O.D

d. 32 mm I.D

32 MM O.D

for lavatories, drinking fountains and similar small fixtures.

a. 38 mm I.D

b. 32 mm O.D

c. 38 mm O.D

d. 32 mm I.D

216

What is the maximum DFU loading of a 102 mm branch.

a. 600

b. 1380

c. 256

d. 216

256

max. DFU loading for 102 mm stack or vertical pipe

a. 600

b. 1380

c. 256

d. 216

600

Max. DFU loading for 600 mm stack or vertical pipe

a. 600

b. 1380

c. 256

d. 216

1380

Max. DFU loading for 152 mm stack or vertical pipe.

a. 600

b. 1380

c. 256

d. 216

51 mm

chapter 7 of RNPCP

Trap arm size of a service sink.

a. 76 mm

b. 38 mm

c. 51 mm

d. 32 mm

38 mm

trap arm size for bathtubs, bidet

a. 76 mm

b. 38 mm

c. 51 mm

d. 32 mm

76 mm

trap arm size for san interceptors, flushing rim sink clinic, etc.

a. 76 mm

b. 38 mm

c. 51 mm

d. 32 mm

32 mm

trap arm size of a dental unit or cuspidor

a. 76 mm

b. 38 mm

c. 51 mm

d. 32 mm

4 FU

chap. 7 of RNPCP

The discharge capacity of 1 to 1.89 lps corresponds to ____

a. 6 FU

b. 1 FU

c. 4 FU

d. 3 FU

2112

additional:

for 1% slope, multiply horizontal fixture units by a factor of 0.8.

What is the maximum fixture loading of a 8" pipe sloped at 1%?

a. 2112

b. 1380

c. 2650

d. 2880

Bathtub

chap.7 of RNPCP

additional:

cleanouts may be omitted on a horizontal drain line less than 1.5 m in length unless such line is serving sinks or urinals

A fixture allowed to omit a cleanout on a horizontal line less than 1.5 m in length is _____.

a. Bathtub

b. Sink

c. Urinal

d. W.C

Silver Brazing

Medical gas piping is most often joined by _____.

a. Pressure lock type fitting

b. Heat fusion

c. Soldering

d. Silver Brazing

Soldering

Process of joining two metallic surfaces to make an electrical contact by melting solder (usually tin and lead) across them.

a. Pressure lock type fitting

b. Heat fusion

c. Soldering

d. Silver Brazing

Pressure-Lock Type Connection

A mechanical connection which depends on an internal retention device to prevent pipe or tubing separation. Connection is made by inserting the pipe or tubing inside the

fitting to a prescribed depth.

a. Pressure lock type fitting

b. Heat fusion

c. Soldering

d. Silver Brazing

Heat Fusion

common joint for PPR ( Polypropylene Random Copolymer)

a. Pressure lock type fitting

b. Heat fusion

c. Soldering

d. Silver Brazing

Bitumen

Voids between pipes and sleeves through concrete floors in the ground shall be appropriately sealed with _____

a. Sealant

b. Bitumen

c. Polyethylene Sheath

d. Silicon Caulk

embedded metal pipe sleeves

protection from breakage for piping passing under or through walls.

a. Sealant

b. Bitumen

c. Polyethylene Sheath

d. embedded metal pipe sleeves

Polyethylene sheath

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

a. Sealant

b. Bitumen

c. Polyethylene Sheath

d. Silicon Caulk

Metal sleeve

for pipes directly embedded in concrete and masonry walls

a. metal sleeve

b. Bitumen

c. Polyethylene Sheath

d. Silicon Caulk

61 m

The public sewer may be considered not being available when a sewer is located more than _____ from any proposed building or exterior drainage facility.

a. 91 m

b. 61 m

c. 150 m

d. 30 m

91 m

maximum distance between manholes.

1033 kpa or 150 psi

Each pressure relief valve shall be an approved automatic type with drain and set at a pressure not more than _____.

a. 1033 psi

b. 1500 psi

c. 1033 kpa

d. 150 kpa

90 degrees

changes in direction of drainage piping shall be made by the use of approved pipe fittings like the following except for

a. 45 degrees

b. 22 1/2 degrees

c. 60 degrees

d. 90 degrees

Plumbing fixtures are installed

Every building where _____ shall have a sewer service connection to a public or private sewer systems.

a. solid waste are discharge

b. plumbing fixtures are installed

c. there is more than 1 occupant

d. at least 1 toilet room is present.

0.9 kg/mm

Chap. 4 of RNPCP

All reinforcing webbing shall produce a tensile strength of NOT less than ___ in either direction.

11

chap. 4 of RNPCP

Water closet provision for 300 females in assembly places for public use.

a.11

b. 10

c. 13

d. 8

6 FU

Chap. 7 of RNPCP

Clotheswashers in groups of 3 or more shall be rated at _____ each for the common horiontal and vertical waste pipe sizing.

A. 2FU

B. 4 FU

C. 6 FU

D. 3 FU

14

Threads per inch for pipe size of 13 mm diameter

a. 18

b. 14

c.11

d.8

150 mm above the ground

Galvanized wrought iron or galvanized steel pipe shall be kept _____.

a. 150 above the ground

b. 300 above the ground

c. 300 below the ground

d. 150 mm below the ground

300 mm below the ground

Vitrified clay pipes must be kept ____.

a. 150 above the ground

b. 300 above the ground

c. 300 below the ground

d. 150 mm below the ground

50

1 Laundry Tray must be provided per ____ persons.

a. 75

b. 100

c. 50

d. 30

Bitumastic Coating

Copper tubing shall be fully externally protected with a/an _____ and fiberglass wrapping installed inside a split rigid casing whenever installed underground.

a. metal pipe sleeve

b. polyethylene sheath

c. bitumastic coating

d. expansion joint

1'' 0r 25.4 mm

Linings for showers shall NOT be nailed or perforated at any point less than ____ above the finished dam or threshold.

a. 4''

b. 1''

c. 2''

d. 3''

76 mm or 3''

dimension that refers to extension of lining materials above the top of the finished dam or threshold of a shower

a. 4''

b. 1''

c. 2''

d. 3''

101 mm or 4''

dimension that refers to extension of folds, laps, and reinforcing webbing in all directions from the corner in a shower sub-pan.

a. 4''

b. 1''

c. 2''

d. 3''

2'' or 9''

What is allowed depth of shower dam or threshold?

a. 2'' - 4''

b. 4'' -12 ''

c. 2'' - 9 ''

d. 3''-9 ''

Black Steel Pipe

Preferred pipe for transporting gas.

a. Galvanized Pipe

b. Cast Iron Soil Pipe

c. Black Steel Pipe

d. Concrete pipe

Galvanized Pipe

suitable for water supply in old houses

a. Galvanized Pipe

b. Cast Iron Soil Pipe

c. Black Steel Pipe

d. Concrete pipe

Concrete pipe

pipe suitable for sanitary, storm sewers, and culverts

a. Galvanized Pipe

b. Cast Iron Soil Pipe

c. Black Steel Pipe

d. Concrete pipe

Cast Iron Soil Pipe

most popular and generally specified material for drainage installation

a. Galvanized Pipe

b. Cast Iron Soil Pipe

c. Black Steel Pipe

d. Concrete pipe

2 pipe sizes; largest side inlet

Vertical installation of double sanitary tees may be used when the barrel of the fitting is at least _____ larger than the _____ inlet.

8

additional:

38 mm-51 mm: 11-1/2 TPI

Threads per inch of a 64 mm cleanout size.

a. 11-1/2

b.8

c.14

d.18

Backwater valve

a device installed in a drainage system to prevent reverse flow

a. check valve

b. backwater valve

c. ball cock

d. sump

Check Valve

a valve that automatically closes to prevent the flow of liquid or gas in a reverse direction

a. check valve

b. backwater valve

c. ball cock

d. sump

Ball cock

a valve opened and closed by the fall and rise, respectively, of an attached ball floating on a surface of the liquid

a. check valve

b. backwater valve

c. ball cock

d. sump

Sump

receives sewage or wastewater and below the normal grade of the gravity system.

a. check valve

b. backwater valve

c. ball cock

d. sump

Convection

the transference of heat by the upward movement of a warm light air current.

a. convection

b. conduction

c. absorption

d. radiation

Radiation

The transfer of energy by electromagnetic waves

conduction

The direct transfer of heat from one substance to another substance that it is touching.

60 FU

How many fixture units is equivalent to a 30 gpm-rated sump?

A. 4 FU

B. 60 FU

C. 18 FU

D. 30 FU

120 Fahrenheit

Limit stops shall be adjusted to deliver hot water with a minimum temperature of ____

a. 110 f

b. 140 f

c. 160 f

d. 120 f

Manually-Operated Standpipe System

A standpipe wherein there is a remote control device at each hose station.

2.5%

a run of 20 meters with a rise of 0.5 m corresponds to a slope of ___

3 m

Water pipe joints shall be installed not less than ___ away from sewer line in both directions.

a. 3 m

b. 6''

c. 0.3 m

d. 1.5 m

IAPMO (International Association of Plumbing and Mechanical Officials)

Joints for hubless cast iron soil pipe and fittings shall conform to appropriate ____ installation standards.

Atmospheric Vacuum Breaker (AVB)

Backflow prevention device for a hose bibb.

a. air break

b. air gap

c. atmospheric vacuum breaker

d. pressure vacuum breaker

last valve; 152 mm

AVBs of inlets to tanks, vats, sumps shall be installed in the discharge side of the _____ with the critical level not less than _____ above flood level rim.

457.2

a ____diameter circular basin shall be equivalent to 1 lavatory.

a. 508 mm

b. 609.6 mm

c. 457.2 mm

609.6 mm

refers to the width of a circular basin that shall be considered equivalent to 1 lavatory

a. 508 mm

b. 609.6 mm

c. 457.2 mm

38 mm

Trap arm size of Laundry Tub

a. 76 mm

b. 38 mm

c. 32 mm

d. 51 mm

32 mm

trap arm size of wash basin (lavatory) single, dental units or cuspidor

a. 76 mm

b. 38 mm

c. 32 mm

d. 51 mm

51 mm

trap arm size of floor drains, grease interceptors, showers, etc.

a. 76 mm

b. 38 mm

c. 32 mm

d. 51 mm

76 mm

trap arm size of water closet

a. 76 mm

b. 38 mm

c. 32 mm

d. 51 mm