Exercise 3.

Exercise 1.

Vocabulary Exercises

Text B

Text A

UNIT 4. Fluid Pressure

water main flows under hydrostatic pressure

Exercise 2.Match the two parts to make correct sentences. Look at B opposite.

1.Header tanks are designed to a make liquid flow upwards from its surface.

2. To prime means b generate hydrostatic pressure in a building.

3. Siphonic action is able to c supply large numbers of buildings

4. Water towers are large tanks designed to dfill a pipe or hose to its full bore, removing the air.

Exercise 4. Circle the odd ones out.

1. pressure tension vacuum enforcement

2. air tank can reservoir

3. liquid gas fluid aqua

4. force power pressure strength

5. pipe tube pump duct

6. vessel container pot fan

Exercise 5.Complete the word groups with the devices they are associated with.

1. liquids, gases ___________

2. water, gas ________

3. waste waters, waste substances ________

4. bars, Pascal ______

5. water level, head of water _____

6. vacuum, zero Pascals _____