In a recuperative air preheater, the heat is transferred____________________?

Related Mcqs:

The saturation temperature of steam with increase in pressure increases____________________?

A. linearly B. rapidly first and then slowly C. slowly first and then rapidly D. inversely E. none of the above...

Duplex feed pumps are used in small steam boilers. These operate on the principle of_________________?

A. centrifugal pump B. axial flow pump C. gear pump D. ejector pump E. reciprocating pump...

Water at pressure of 4 kg/cm2 and 160°C temperature when exposed to atmosphere will_________________?

A. boil B. flash i.e. get converted into steam C. remain as it was D. cool down E. none of the above...

Which is not the correct statement about moisture in coal ______________________?

A. inherent moisture and surface mois¬ture are different things B. in some coals moisture may be present upto 40% C. some moisture in coal helps in better burning which is not possible with completely dry coal D. it increases thermal efficiency E. moisture in coal is removed before firing by heating it with hot air...

The heat loss in a boiler takes place in the form of________________?

A. heat carried away by flue gases B. heat carried away by ash C. moisture present in fuel and steam formed by combustion of hydrogen in fuel D. radiation E. all of the above...