Calorific value of wood gas is about __________ kcal/Nm³. 5400 1500 8500 3300 TRUE ANSWER : ? YOUR ANSWER : ?
Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg. 8000 4000 1000 15000 TRUE ANSWER : ? YOUR ANSWER : ?
The advantage of firing pulverised coal in the furnace lies in the fact, that it Accelerates the burning rate and economises on fuel combustion Permits the use of low fusion point ash coal All of these Permits the use of high ash content coal TRUE ANSWER : ? YOUR ANSWER : ?
A coal having high volatile matter content will Have a very high calorific value Give less yield of tar and gas on carbonisation None of these Burn with a small non-smoky flame TRUE ANSWER : ? YOUR ANSWER : ?
Abel apparatus is used for those oils, whose flash points are___°F. >120 300-600 >280 TRUE ANSWER : ? YOUR ANSWER : ?
Insitu theory and drift theory are related to the Origin of petroleum oil Coalification Origin of coal Variation of coal quality with depth TRUE ANSWER : ? YOUR ANSWER : ?
A coal with high ash content Is not subjected to washing Is harder and stronger Has higher calorific value Has low quantity of mineral matter TRUE ANSWER : ? YOUR ANSWER : ?
Spontaneous combustion of coal on storage results due to Inadequate ventilation Storage in large heaps with small surface to volume ratio All of these Low temperature oxidation TRUE ANSWER : ? YOUR ANSWER : ?
Coalification means the Process of conversion of lignite into anthracite Direct hydrogenation of coal Underground gasification of coal Complete combustion of coal TRUE ANSWER : ? YOUR ANSWER : ?
The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be 27.6 23 47.3 42.9 TRUE ANSWER : ? YOUR ANSWER : ?