In a furnace operation, which is not preheated ?

Related Mcqs:

Scaling of furnace stock is reduced by _______________ in flue gas?

A. CO B. H2 C. High CO/CO2 D. All A., B. & C....

Maximum heat transfer in high temperature furnaces is by____________________?

A. Conduction B. Convection C. Radiation D. Either A., B. or C.; depends on the type of furnace...

Thermal efficiency of a limestone calcination rotary kiln may be around ______________ percent?

A. 20 B. 40 C. 65 D. 80...

Which of the following accentuates clinkering troubles on furnace grate burning coal ?

A. Low reactivity of carbonised residue containing high proportion of iron & sulphur B. Low forced draft & fuel bed temperature C. Thick firebed and preheated primary air D. All A., B. and C....

Which one shows the diagrammatic heat balance in a furnace ?

A. Sankey diagram B. Cox chart C. Ostwald chart D. None of these...