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A. Put "T" for true and "F" for false statements. Justify your answers. 1. Gas and nuclear plants use the steam cycle to turn heat into electricity. 2. Condensers remove the heat from the outlet steam. 3. The steam power station uses pure water in an open cycle.

A. Put "T" for true and "F" for false statements. Justify your answers. 1. Gas and nuclear plants use the steam cycle to turn heat into electricity. 2. Condensers remove the heat from the outlet steam. 3. The steam power station uses pure water in an open cycle.

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lake. Part I. Comprehension Exercises A. Put "T" for true and "F" for false statements. Justify your answers. 1. Gas and nuclear plants use the steam cycle to turn heat into electricity. 2. Condensers remove the heat from the outlet steam. 3. The steam power station uses pure water in an open cycle. 4. Steam pressure affects the generators directly. 5. Having cooled off the exhaust steam, the warmed impure water may be recirculated. 6. Natural air is forced through the cooling tower. 7. Large coal-fired stations situated far from the pit head need a rail link. 8. Oil-fired power stations consume certain constituents of crude oil. 9. Nuclear power stations use less cooling water than comparable coal-fired or oil-fired plants. 10. Hydroelectric power stations have to be built where there is enough water pressure. B. Choose a, b, c, or d which best completes each item. 1. In steam power stations, the turbine efficiency will increase if. a. the steam pressure is kept constant b. the outlet steam is condensed into water c. the steam temperature is not varied d. the outlet water is pumped back into the boilers 2. The steam power station uses pure water .... a. to produce the steam required to drive the turbines b. to produce the steam required to activate the generators 16
Transcribed Image Text:lake. Part I. Comprehension Exercises A. Put "T" for true and "F" for false statements. Justify your answers. 1. Gas and nuclear plants use the steam cycle to turn heat into electricity. 2. Condensers remove the heat from the outlet steam. 3. The steam power station uses pure water in an open cycle. 4. Steam pressure affects the generators directly. 5. Having cooled off the exhaust steam, the warmed impure water may be recirculated. 6. Natural air is forced through the cooling tower. 7. Large coal-fired stations situated far from the pit head need a rail link. 8. Oil-fired power stations consume certain constituents of crude oil. 9. Nuclear power stations use less cooling water than comparable coal-fired or oil-fired plants. 10. Hydroelectric power stations have to be built where there is enough water pressure. B. Choose a, b, c, or d which best completes each item. 1. In steam power stations, the turbine efficiency will increase if. a. the steam pressure is kept constant b. the outlet steam is condensed into water c. the steam temperature is not varied d. the outlet water is pumped back into the boilers 2. The steam power station uses pure water .... a. to produce the steam required to drive the turbines b. to produce the steam required to activate the generators 16
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