Unit 108; Above Ground Drainage, Rain Water Guttering Systems 2

Multiple Choice

Why is it important to ensure that waste pipes are properly joined in a drainage system?

• To prevent leaks and unpleasant smells in homes

• To increase the speed of water flow

• To reduce the cost of installation

• To make pipes look more attractive

Multiple Choice

Which of the following shows the correct order of components in a typical above ground drainage system?

• Appliance waste → Trap → Discharge branch → Soil stack → Sewer

• Trap → Appliance waste → Discharge branch → Soil stack → Sewer

• Soil stack → Discharge branch → Trap → Appliance waste → Sewer

• Discharge branch → Trap → Appliance waste → Soil stack → Sewer

Fill in the Blanks

The three common ways of making a watertight seal with waste pipe fittings are

, compression, and solvent weld.

Multiple Select

Which of the following are types of common waste pipe fittings shown in the images?

• Elbows

• Couplings

• Swept tee

• Bend

Multiple Choice

Why is it important to create a water-tight seal during plumbing installation?

• To prevent leaks and ensure good workmanship

• To make the pipes look shiny

• To reduce the cost of materials

• To speed up installation

Multiple Choice

What are the three most common types of waste pipe connections mentioned?

• Push-fit, Compression, Solvent weld

• Soldered, Threaded, Flanged

• Welded, Brazed, Screwed

• Clamped, Glued, Riveted

Fill in the Blanks

After removing burrs, what can be filed in place to allow the waste pipe to enter the component evenly?

Open Ended

Which part creates the water-tight seal in a push-fit fitting, and why must it not be damaged or pushed out of place?

Fill in the Blanks

Before inserting a waste pipe, marking the full insertion depth with a pencil helps ensure the pipe has been

.

Multiple Choice

What is the purpose of applying silicon grease to push-fit waste pipe fittings?

• To make the pipe enter the component smoothly

• To clean the pipe

• To prevent rust

• To color the pipe

Multiple Choice

After the waste pipe has been pushed home, what should the pencil mark line up with?

• The outside of the component

• The inside of the pipe

• The lock nut

• The reinforcement washer

Multiple Select

Which of the following are parts of a compression-type waste pipe fitting?

• Lock nut

• Rubber seal

• Reinforcement washer

• O-ring

Fill in the Blanks

The first part to be put onto the waste pipe during compression fitting assembly is the

.

Multiple Choice

What is the purpose of the reinforcement ring and rubber seal when fitting a waste pipe?

• To prevent leaks by creating a tight seal

• To make the pipe easier to cut

• To add weight to the pipe

• To color code the pipes

Multiple Choice

Which of the following statements about compression connections to traps is correct?

• They require a different technique than other components.

• They use the same technique as other components.

• They do not require seals or rings.

• They are glued with solvent cement.

Fill in the Blanks

The water-tight seal on a solvent-welded connection is made by fusing the plastic together with

cement.

Multiple Choice

When the connections are made and are in the correct place and angle, what should you do to ensure you can line the fitting up once glued?

• Mark each joint with a line from the waste pipe onto the connection

• Apply extra solvent cement

• Tighten the nut further

• Leave the connection overnight

Multiple Choice

Why is it important to ensure that the joins in waste pipes are made correctly?

• To prevent leaks and smells in homes

• To increase water pressure

• To reduce water usage

• To make pipes look better