Grindability index of a coal is 100. It implies that the Coal can't be pulverised Coal can be pulverised with great difficulty Power consumption in grinding the coal will be very high Coal can be easily pulverised TRUE ANSWER : ? YOUR ANSWER : ?
Dry air required to burn 1 kg of carbon completely may be around __________ kg. 2 20 11 38 TRUE ANSWER : ? YOUR ANSWER : ?
A coal having higher volatile matter content, has lower Chance of catching fire during storage in open space Smoking tendency on burning Ignition temperature Coke oven gas yield on carbonisation TRUE ANSWER : ? YOUR ANSWER : ?
Net calorific value is the gross calorific value less the __________ heat of water in the product of combustion when cooled to 15°C. None of these Sensible and latent Latent Sensible TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following fuel gases is heavier than air? Coke oven gas Water gas Blast furnace gas Natural gas TRUE ANSWER : ? YOUR ANSWER : ?
Yield of blast furnace gas is about __________ Nm³ /ton of pig iron. 5000 2000 10000 300 TRUE ANSWER : ? YOUR ANSWER : ?
__________ has the widest inflammability limit (explosion limit) of all the gases. Carbon monoxide Acetylene Methane Hydrogen TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Flame temperature achieved Calorific value of the fuel Heat transfer rate to the stock in the furnace Speed of combustion of fuel TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a manufactured fuel ? Bagasse Furnace oil Kerosene Semi-coke TRUE ANSWER : ? YOUR ANSWER : ?
Junker's calorimeter is used to determine the calorific value of Pulverised coal Gaseous fuels None of these Fuel oil TRUE ANSWER : ? YOUR ANSWER : ?