The main source of production of biogas is__________________?

Related Mcqs:

In fuel cell, the ___________ energy is converted into electrical energy?

A. mechanical B. chemical C. heat D. sound...

Artificial draught is produced by____________?

A. air fans B. steam jet C. fan or steam jet D. all of the above...

In a steam power plant, the function of a condenser is__________?

A. to maintain pressure below atmospheric to increase work output from the primemover B. to receive large volumes of steam exhausted from steam prime mover C. to condense large volumes of steam to water which may be used again in boiler D. all of the above...

TravelUng grate stoker can burn coals at the rates of____________?

A. 50—75 kg/m per hour B. 75—100 kg/m per hour C. 100—150 kg/m per hour D. 150—200 kg/m2 per hour...

Load curve is useful in deciding the__________?

(a) A. operating schedule of generating units B. sizes of generating units C. total installed capacity of the plant D. all of the above...