Power Plant Engineering Set 4

utilise heat of flue gases ✘ increase thermal efficiency ✘ improve condenser performance ✘ reduce loss of heat ✔

Anthracite ✘ Lignite ✘ Semi-bituminous and bituminous ✘ All of the above ✔

pv = C ✘ pv1A = C ✘ pv1i = C ✘ pv ✔

15 to 20 per cent ✘ 35 to 45 per cent ✘ 70 to 80 per cent ✘ 90 to 95 per ceut ✔

25 to 30% ✘ 40 to 50% ✘ 65 to 70% ✘ 85 to 90% ✔

induced draught ✘ natural draught ✘ forced draught ✘ balanced draught ✔

steam in pipes surrounded by water ✘ water in pipes surrounded by steam ✘ either (A) or (B) ✘ none of the above ✔