Q 1 (a) The overall efficiency of thermal power plant is equal to a. Carnot cycle efficiency O b. Rankine cycle efficiency OC. Regenerative cycle efficiency Od. Boiler efficiency x turbine efficiency generator efficiency (b) Under normal operating conditions, a drop in the steam temperature leaving an uncontrolled inter deck superheater could be caused by O a drop in the feed water temperature Ob decrease in steam velocity through the superheater Oc decrease in combustion gas velocity through the superheater Od badly fouled economizer K (c) Reflector in nuclear plants is used to O a return the neutrons back into the core O b. shield the radioactivity completely Oc. conserve energy Od check pollution (d) The highest efficiency of a Rankine cycle arises in a a. superheated cycle b. saturated cycle Oc. regenerative cycle Od. (c) reheat cycle (e) U238 will undergo fission by Oa. High energy (fast) neutrons alone Ob. Medium energy neutrons Oc. Low energy (slow) neutrons alone Od. Either fast or slow neutrons