Efficiency of the combustion of a fuel is judged by the __________ the flue gas. Temperature of % of O₂in Colour of %of CO₂ in TRUE ANSWER : ? YOUR ANSWER : ?
The hottest part of the flame lies in its____zone. Yellow Unburnt gases Luminous Non-luminous TRUE ANSWER : ? YOUR ANSWER : ?
Assam coals suffers mainly from the disadvantage of high __________ content. Volatile matter Moisture Ash Sulphur (4-6%) TRUE ANSWER : ? YOUR ANSWER : ?
Yield of charcoal in high temperature carbonisation of wood is about __________ percent. 10 50 25 75 TRUE ANSWER : ? YOUR ANSWER : ?
Most of the coking coals are Lignite Bituminous Anthracite None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a by-product fuel? Blast furnace gas Pitch Refinery gas Petrol TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is called "blue gas"? Water gas Natural gas Coke oven gas Producer gas TRUE ANSWER : ? YOUR ANSWER : ?
Low temperature oxidation of coal during storage does not decrease its Oxygen content None of these Caking power Calorific value TRUE ANSWER : ? YOUR ANSWER : ?
Coking coals are invariably Lignites Anthracites Bituminous coals Semi-anthracites TRUE ANSWER : ? YOUR ANSWER : ?
High pressure coal gasification is employed in __________ process. Lurgi Winkler Kopper-Totzek None of these TRUE ANSWER : ? YOUR ANSWER : ?