Q. Pensky-Marten apparatus is used for those oils, whose flash points are __________ °F.

View solution

Q. In high temperature carbonisation of coal compared to low temperature carbonisation

View solution

Q. A coal having high amount of volatile matter

View solution

Q. Carbon Content by weight in air dried wood may be about __________ percent.

View solution

Q. Which of the following accentuates clinker-ing trouble on furnace grate burning coal ?

View solution

Q. Natural draught produced by a chimney depends upon the

View solution

Q. Gross & net calorific value is the same for

View solution

Q. Junker's calorimeter is used to determine the calorific value of

View solution

Q. Combustion reaction of fuels is a/an __________ reaction.

View solution

Q. Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its

View solution

Q. Which of the following constituents of coal is the most important in the production of coke?

View solution

Q. High temperature in gasification of coal favours

View solution

Q. When incomplete combustion loss is high, the flue gas analysis shows large amount of

View solution

Q. The gas which contributes maximum to the heating value of natural gas is

View solution

Q. The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C.

View solution

Q. Yield of coke oven gas in low temperature carbonisation of coal is about __________ Nm³ /ton of dry coal.

View solution

Q. Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the

View solution

Q. Pick out the wrong statement.

View solution

Q. Stack heat losses can be minimised by

View solution

Q. Laboratory gas is obtained by the cracking of

View solution