Presence of SO2 in furnace gases attacks the ferrous metal by way of_________________?

Related Mcqs:

Flue gas outlet temperature from the chimney of any furnace should be ideally about ______________ °C?

A. 50 B. 100 C. 150 D. 250...

Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C ?

A. 5 B. 60 C. 20 D. 40...

Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an_________________?

A. Economiser B. Steam superheater C. Air preheater D. All A., B. and C....

The main function of a muffle in the muffle furnace is to__________________?

A. Protect the charge from the effects of the products of combustion B. Smooth out temperature inequalities on the combustion side of the muffle wall C. Both A. & B. D. Neither A. nor B....

Which is a continuous furnace ?

A. Coke ovens B. Annealing furnace C. Glass tank furnace D. None of these...