Chapter 4: Fixture Controls

What are TWO basic functions of fixture controls?

• To control the flow of water to a fixture

• To ensure the fixture is properly vented

• To control the flow of waste from a fixture

• To control water hammer in a water line

Which of the following is NOT a method of controlling the flow of water to activate the flushing cycle of a water closet?

• Gravity flush with internal valves

• Gravity flush with external valves

• Flushometer (pressure-assist)

• Vacuum-assist

• Direct flushometer

The overflow tube is a component of the ____ assembly.

• Float valve

• Fixture

• Flush valve

• System

Which is NOT a common feature of all closet tank flush valves?

• A mechanism that automatically seals the opening to the closet bowl when the flushing cycle is complete

• An overflow tube

• A linkage between the trip lever and the flushing device

• A flushometer

List the names of two types of flushometer tanks.

• Gravity-type and Vacuum assist

• Pressure-assist and Vacuum-assist

• Gravity type and Pressure-assist

• Direct-flush and Pressure-assist

What controls the flow of water into the flush tank of a gravity water closet after a flush cycle has taken place.

• Ballcock/ float valve

• Flush valve

• Flapper

• Ball valve

The two basic types of direct-flush valves are:

• piston and pressure-assist types

• piston and cartridge types

• piston and diaphragm types

• diaphragm and vacuum-assist types

What is the purpose of the control stop on direct-flush valves?

• To control the rate of flow to the fixture

• To shut off water supply to the fixture

• All of the above

• None of the Above

What governs the rate the upper chamber of a piston operated flush valve fills and the speed with

which the valve closes?

• The size of the waste connection and pressure

• The model of the water closet and flush valve

• The volume of the bowl and the pressure

• The size of the bypass orifice and the pressure

The ____ assembly connects a direct-flush valve to the fixtures.

• Ballcock

• Float Valve

• Tailpiece

• Flush Valve