Lesson 15

________ are used to open and close locks or padlocks.

• Wrenches

• Keys

• Belt and chain wrenches

• Lever pipe wrench

• Bag and box for small tools

To stop the water, I turned off the ______.

• Plughole or drain

• Plunger

• Sink

• Tap

I used a ______ to try and unclog the blockage.

• Leak

• Pipe

• Plughole or drain

• Plunger

The ______ was filled with dirty dishes.

• Leak

• Pipe

• Sink

• Tap

There was a small ______ under the bathroom sink, causing a puddle on the floor.

• Leak

• Pipe

• Plughole or drain

• Plunger

Which part of the system maintains a comfortable temperature indoors during colder months?

• System

• Heating

• Plumbing

• Sewerage

Which part of the system is responsible for the disposal of wastewater?

• System

• Plumbing

• Sewerage

• Ventilation

What ensures the quality of indoor air by removing moisture, odors, and pollutants?

• Heating

• Plumbing

• Sewerage

• Ventilation

Which element works alongside sewerage to maintain sanitary conditions?

• System

• Heating

• Plumbing

• Ventilation

The __________ is used to create a tight seal on leaking pipes.

• Sink

• Pipe cutter

• Soldering iron for pipes

• Plunger