Power Generation Sources. Set 3

water must be admitted over the whole circumference of the wheel ✘ it is net possible to regulate the flow without loss ✘ wheel must run full and be-kept entirely submerged in water below the tail race ✘ the pressure in the driving fluid as it moves over the vane, is atmospheric. ✔

steam at 2 different pressures is used ✘ steam is expanded in 2 turbines ✘ two fluids are used ✘ vapor and liquid are used as working substances. ✔

single acting, condensing type ✘ single acting, non-condensing type ✘ double acting, non-condensing type ✘ double acting, condensing type. ✔

condense low pressure steam ✘ cool condensed steam ✘ cool water used in condenser for condensing steam ✘ cool feed water of boiler. ✔

CO ✘ methane ✘ oxygen ✘ hydrogen. ✔

making cakes of coal out of fine powders ✘ a variety of free burning coals ✘ coal produced from burning of wood in inert atmosphere ✘ in boiler furnace some coals become plastic and form lumps or masses of coal. ✔

1.66 x 10 -27 kg

✘

1.66 x 10-25 kg

✘

1.66 x 10 -17 kg

✘

1.66 x 10-10 kg.

✔

Positrons ✘ Beta particles ✘ Isotopes ✘ Decayed panicles. ✔

Graphite ✘ Heavy water ✘ Beryllium ✘ Any of the above. ✔

hot water is re circulated after cooling ✘ water does not flow ✘ air and water cooling is simultaneously used ✘ constant supply of fresh water for cooling is required. ✔