Q. Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher

View solution

Q. Mott and Wheeler test is conducted on coke to find its

View solution

Q. The pyragallol solution used in orsat apparatus can absorb

View solution

Q. Percentage of nitrogen in blast furnace gas may be around

View solution

Q. Very __________ coals are completely devoid of cokability i.e, it is non coking.

View solution

Q. Nitrogen in coal

View solution

Q. Advantages of fluidised bed combustion are

View solution

Q. The fuel ratio of a coal is

View solution

Q. Which will have the least volatile matter and hence will be the most difficult to ignite?

View solution

Q. Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent.

View solution

Q. As time passes, the calorific value of stored coal

View solution

Q. Stack (chimney) height in a big thermal power plant is dictated by the

View solution

Q. A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon

View solution

Q. A travelling grate stoker is meant for the efficient burning of __________ coal.

View solution

Q. Pick out the wrong statement.

View solution

Q. Percentage of carbon monoxide in blast furnace gas may be around

View solution

Q. The main drawback of supplying more excess air in the combustion of fuel is the

View solution

Q. Width of the coke oven towards coke side is slightly more than that on pusher side to

View solution

Q. Which of the following fuel gases will require maximum amount of air for combustion of 1 Nm³ gas ?

View solution

Q. High rate of heating of coke ovens

View solution