Exercises to the text "Thermal Power Stations"

1. Answer the following questions:

  1. What is mechanical power produced by in thermal power stations?
  2. What does a heat engine transform?
  3. What do most power stations produce?
  4. Can all thermal energy be transformed into mechanical power? Why?
  5. What is heat loss employed for?
  6. Is heat loss employed as useful heat in your region?
  7. What is the term for such plants?
  8. What else can by-product heat be used for?
  9. What is water desalination?

2. Fill in the missed prepositions:

1.In thermal power stations, mechanical power is produced ... a heat engine.

2.The heat engine transforms thermal energy ... rotational energy.

3.According  ... the second law of thermodynamics not all thermal energy can be transformed into mechanical power.

4.There is always heat lost ... the environment.

5.This loss is employed ... useful heat  for industrial processes or district heating.

6.Some power stations in the Middle East use by-product heat ... the desalination of water.

3. Transform the following sentences from Active into Passive voice:

  1. A heat engine produces mechanical power in thermal power station.
  2. A heat engine transforms thermal energy into rotational energy.
  3. Thermal power stations produce steam.
  4. People call them steam power stations.
  5. Cogeneration power plants use heat loss for industrial processes or district heating.

  4. Translate the sentences paying attention to words given in bold:

  1. The prince was transformed into an ugly animal. 2. There are some constituents transformable into each other by chemical or physical action. 3.  Its landscape has undergone a radical transformation. 4. An apparatus for reducing or increasing the voltage of an alternating current is called a transformer. 5. The game did not heat up until the second half. 6. I can heat up some soup in two minutes. 7. The room heated up quickly. 8. Сompetition among manufacturers heats up. 9. They were engaged in a heated debate about the problem. 10. She had a heated argument with an official. 11. He carried his heater with him that day. 12. Condensed steam floated away in the form of water vapour. 13. He was lacking in steam. 14. The windows have steamed over, and I can't see out. 15. The young lady had steamed over from America. 16. Is there a danger of the housing programme running out of steam? 17. Let the children let off steam outside while the weather's fine, they get so restless indoors when it's raining.18.  The equipment was originally powered by steam. 19. He had a mug of steaming coffee in his hands.