Which of the following has the highest flame speed ?

Related Mcqs:

Main constituent of the gas produced from a gobar gas plant is___________________?

A. CO2 B. CH4 C. H2 D. CO...

Pick out the wrong statement ?

A. Cokes of high reactivity are obtained from weakly coking coals B. Cokes of high reactivity are obtained from strongly coking coals C. Reactivity of coke is inversely proportional to its absolute density D. Abrasion index of the coke is a measure of its hardness...

The cooling medium used in dry quenching of coke is___________________?

A. Nitrogen B. Air C. Phenolic water D. Carbon dioxide...

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___________________?

A. Requirement of large volume combustion chamber B. Risk of explosion C. Chances of clinker formation D. Incomplete combustion of coal...

Abel apparatus is used for those oils, whose flash points are ___________°F?

A. < 120 B. > 120 C. > 280 D. 300-600...