Caking coals are those which__________?
Caking coals are those which__________?
A. burn completely
B. burn freely
C. do not form ash
D. form lumps or masses of coke
Caking coals are those which__________?
A. burn completely
B. burn freely
C. do not form ash
D. form lumps or masses of coke
The voltage of a single solar cells is about
A. 0.5 volt
B. 1 volt
C. 1.8 volt
D. 1. 5 volt
A gas turbine basically work on
A. Carnot cycle
B. Rankin cycle
C. Brayton cycle
D. Dual cycle
In a shell and tube surface condenser____________?
A. steam and cooling water mix to give the condensate
B. cooling water passes through the tubes and steam surrounds them
C. steam passes through the cooling tubes and cooling water surrounds them
D. all of the above varying with situation
Which of the following power plant has highest Depreciation charges?
A. Thermal plant
B. Diesel plant
C. Hydroelectric plant
D. All have same
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
Economisers improve boiler efficiency by__________?
A. 1 to 5%
B. 4 to 10%
C. 10 to 12%