The energy radiated by sun on a bright sunny day is approximately______________?
(A) 700 W/m2
(B) 800 W/m2
(C) 1 kW/m2
(D) 2 kW/m2
Solar thermal power generation can be achieved by_______________?
(A) using focusing collector or heliostates
(B) using flat plate collectors
(C) using a solar pond
(D) any of the above system
The draught which a chimney produces is called_____________?
(A) induced draught
(B) natural draught
(C) forced draught
(D) balanced draught
The modern steam turbines are___________?
(A) impulse turbines
(B) reaction turbines
(C) impulse-reaction turbines
(D) none of the above
Mercury is a choice with steam in binary vapour cycle because it has____________?
(A) higher critical temperature and pressure
(B) higher saturation temperature than other fluids
(C) relatively low vapourisation pressure
(D) all above
Reheat cycle in steam power plant is used to________________?
(A) utilise heat of flue gases
(B) increase thermal efficiency
(C) improve condenser performance
(D) reduce loss of heat
In regenerative cycle feed water is heated by_____________?
(A) exhaust gases
(B) heaters
(C) draining steam from the turbine
(D) all above
The maximum percentage gain in Regenerative feed heating cycle thermal efficiency____________?
(A) increases with number of feed heaters increasing
(B) decreases with number of feed heaters increasing
(C) remains same unaffected by number of feed heaters
(D) none of the above
In a regenerative feed heating cycle, the greatest economy is affected___________?
(A) when steam is extracted from only one suitable point of steam turbine
(B) when steam is extracted from several places in different stages of steam turbine
(C) when steam is extracted only from the last stage of steam turbine
(D) when steam is extracted only from the first stage of steam turbine