WT 2

通報

問題一覧

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

2112

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

IAPMO

Color of Steam Division- High Pressure Pipe

White

Trap arm size of Laundry Tub

38 mm

Threads per inch for pipe size of 13 mm diameter.

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

80 psi

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

61 m

A _____ diameter circular basin shall be equivalent to 1 lavatory.

457.2 mm

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

plumbing fixtures are installed

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

Convection

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

bitumastic coating

Which installation is allowable for a 6" diameter sewer pipe?

For every two meters of run, pipe has elevation difference of 21 mm

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

Trap arm size of a service sink

51mm

The minimum drainage pipe size for sinks, urinals, and dishwasher

51 mm

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

Decrease in DFU loading

What is the water supply connection size for a flushometer tank WC?

10 mm

A standpipe having a remote control device at each hose station

Manually-Operated Standpipe System

referred pipe for transporting gas

Black Steel Pipe

Thickness of Continuous waste and fixture tailpiece- seamless drawn brass

Gauge 20 (0.8 mm)

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

2 pipe sizes; largest side inlet

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

Bathtub

Backflow prevention device for a hose bibb

Atmospheric Vacuum Breaker

Changes in direction of drainage piping shall be made by the use of approved pipe fittings like the following, except for _____.

90 degrees

WSFU of a private hose bibb

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.

last valve; 152 mm

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

3 m

Limit stops shall be adjusted to deliver hot water with a maximum temperature of _____.

120 °F

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

6 FU

Medical gas piping is most often joined by _____.

Silver Brazing

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

305 mm

The minimum airgap of a fixture with an effective opening of 25 mm, affected by sidewalls

76 mm

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

Bitumen

What is the allowed depth of shower dam or threshold?

2"-9"

1 Laundry Tray must be provided per ____ persons.

All reinforcing webbing shall produce a tensile strength of not less than _____ in either direction.

0.9 kg/mm

1 Kcal is how many BTU?

3.965

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

1033 kpa

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

Atmospheric Vacuum Breaker

The discharge capacity of 1 to 1.89 lps corresponds to _____.

4 FU

A device installed in a drainage system to prevent reverse f low

Backwater Valve

Which is not considered a plumbing fixture?

Water Heater

Hanger rod size for 5" pipe size

13 mm

Each tailpiece, continuous waste or waste and overflow shall not be less than ___ for sinks, dishwashers, laundry tubs bathtubs, urinals and similar fixtures

38 mm. O.D.

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

135°

What is the Maximum DFU loading of a 102 mm branch?

216

Water Closet provision for 300 females in Assembly Places for Public Use

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

60 FU

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