Calorific value of Light paraffinic fuel oils is lower than that of equivalent olefins Light paraffinic fuel oils is higher than that of equivalent olefins N-paraffin is lower than that of iso-paraffins of the same compounds Light paraffinic fuel oils is equal to that of equivalent olefins TRUE ANSWER : ? YOUR ANSWER : ?
Coke oven gas is a better fuel than blast furnace gas, because of its higher All of these Heat release rate (thus requiring smaller combustion chamber) Adiabatic flame temperature Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) TRUE ANSWER : ? YOUR ANSWER : ?
Volatile matter content in coking coal may be about __________ percent. 7 1 46 22 TRUE ANSWER : ? YOUR ANSWER : ?
Combustion of pulverised fuel All of these Requires larger combustion chamber than rich gaseous fuel Suppresses the discharge of fine dust and grit into atmosphere In a metallurgical furnace does not contaminate the product in the furnace by ash from fuel TRUE ANSWER : ? YOUR ANSWER : ?
Yield of charcoal in high temperature carbonisation of wood is about __________ percent. 25 75 50 10 TRUE ANSWER : ? YOUR ANSWER : ?
__________ prohibits the use of alcohols directly in petrol engines. Low calorific value Low flash point High cost & availability Low octane number TRUE ANSWER : ? YOUR ANSWER : ?
Volumetric ratio of N₂ to O₂ in dry atmospheric air is 0.79 0.21 3.76 4.76 TRUE ANSWER : ? YOUR ANSWER : ?
Naphthalene is removed from coke oven gas by Absorbing in vetro-coke solution Scrubbing with wash oil (a petroleum product) None of these Adsorbing on bog iron bed TRUE ANSWER : ? YOUR ANSWER : ?
The reaction, C + CO₂ ⟷ 2CO, taking place during coal gasification is called the __________ reaction. n. Boudouard Reduction Shift conversion Neumann reversal TRUE ANSWER : ? YOUR ANSWER : ?