Boiler stays are used to___________________?

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...

In a throttling process________________?

A. steam temperature remaisn constant B. steam pressure remains constant C. steam enthalpy remains constant D. steam entropy remains constant E. steam volume remains constant...

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...

In a recuperative air preheater, the heat is transferred____________________?

A. from a metal wall from one medium to another B. from heating an itermediate material and then heating the air from this material C. by direct mixing , D. heat is transferred by bleeding some gases from furnace E. none of the above...