The draught which a chimney produces is called_____________?
The draught which a chimney produces is called_____________?
A. induced draught
B. natural draught
C. forced draught
D. balanced draught
Similar Posts
The voltage of a single solar cells is about
The voltage of a single solar cells is about
A. 0.5 volt
B. 1 volt
C. 1.8 volt
D. 1. 5 voltSecondary air is the air used to______________?
Secondary air is the air used to______________?
A. reduce the flame length
B. increase the flame length
C. transport and dry the coal
D. provide air round the burners for getting optimum combustionThe isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation?
The isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation?
A. pv = C
B. pv1A = C
C. pv1i = C
D. pvThe overall efficiency of a steam power station is ________ its thermal efficiency.
The overall efficiency of a steam power station is ________ its thermal efficiency.
A. less than
B. equal to
C. greater than
D. none of the aboveSteam turbines are governed by the following methods_____________?
Steam turbines are governed by the following methods_____________?
A. Throttle governing
B. Nozzle control governing
C. By-pass governing
D. all of the aboveRankine cycle efficiency of a good steam power plant may be in the range of____________?
Rankine cycle efficiency of a good steam power plant may be in the range of____________?
A. 15 to 20 per cent
B. 35 to 45 per cent
C. 70 to 80 per cent
D. 90 to 95 per ceut