PLUMBING CODE QUESTIONS 1 (RED BOOK)

Report the incident, and evaluate the work fairly

A contractor offers you a sum of money in exchange for approving the work immediately. As a Master Plumber, what will be your action?

Not Clarifying the financial interest in the contract

A Master Plumber Secretly receive a commission from a distributor after securing the item for the client’s house. What is the ethical consequence of this situation?

Install backflow prevention device.

To reduce installation cost, the client wants to connect the potable water supply to an industrial mixing tank. what will be the design recommendation?

25mm

Lavatories and other fixtures with effective openings not greater than 13mm in diameter not affected by the side.

38mm

Sinks, laundry trays, gooseneck bath faucets and other fixtures with effective openings not greater the 19mm in diameter not affected by the side.

51mm

Over rim bath fillers and other fixtures with effective openings not greater than 25mm in diameter not affected by the side

Two (2) times diameter of effective opening

Effective openings not greater than 25mm not affected by the side

38mm

Lavatories and other fixtures with effective openings not greater than 13mm in diameter affected by the side.

57mm

Sinks, laundry trays, gooseneck bath faucets and other fixtures with effective openings not greater the 19mm in diameter affected by the side.

76mm

Over rim bath fillers and other fixtures with effective openings not greater than 25mm in diameter affected by the side.

Three (3) times diameter of effective opening

Effective openings not greater than 25mm affected by the side

Approved airgap fitting

A domestic dishwasher drain shall first connect to a/an?

2

DFU of Bathtub

Ball Cock

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

2.1m

Vertical vent pipes installed in a roof used for other purposes shall extend a minimum of ____ above such roof.

0.3m

Horizontal clearance of vent pipe above the roof from any vertical surface nearby.

3m

horizontal distance of vent opening from any openable window, door opening, air intake or vent shaft.

0.9m

vertical distance above vent opening from any openable window, door opening, air intake or vent shaft.

140-degree Faren Hight

The maximum temperature of water that can be discharged under pressure directly into any part of drainage system.

Locate the gas main above grade at the point of entrance into the building

A gas pipping is designed to be installed under a building with no ventilation. As the master plumber what should be your recommendation?