The purpose of controlling the furnace atmosphere is to prevent surface attack by__________________?

Related Mcqs:

Forced recirculation of furnace gases is practised_______________?

A. To increase heat transfer by convection B. To ensure uniform temperature C. In furnaces, operating below 750°C D. All A., B. and C....

Which of the following is not a directly fired furnace ?

A. By-product coke oven B. Calcination kiln C. Sintering furnace D. Open hearth furnace...

Soaking pits are meant for heating steel_________________?

A. Ingots B. Coils C. Sheets D. Slabs...

Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace ?

A. Increase in calorific value of the fuel B. Increase in flame temperature C. Reduction in scale losses D. Saving in fuel consumption...

Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above _____________ °C, because corrosion prevails at higher temperatures?

A. 350 B. 750 C. 1050 D. 1250...