Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?

Related Mcqs:

Bomb calorimeter can be used to determine the _____________ of the coal?

A. Sulphur content B. Calorific value C. Both A. & B. D. Neither A. nor B....

Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about ______________°C?

A. 70 B. 85 C. 105 D. 145...

‘Fat’ coal means a coal having ___________________?

A. Low calorific value B. High volatile matter C. Low ash content D. Non smoking tendency...

When steam is passed over coal resulting in the endothermic reaction represent by, C + H2O = CO + H2, it is called the _______________ of coal?

A. Carbonisation B. Oxidation C. Coalification D. Gasification...

Kopper-Totzek coal gasifier_________________?

A. Can give ammonia synthesis gas (H2 + N2) B. Is a moving bed reactor C. Cannot use coking coal D. Operate at very high pressure...