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

Related Mcqs:

If partial pressure of air and steam be pa and ps respectively in a condenser, then according to Dalton’s law, the pressure in condenser is equal to__________________?

A. Ps-Pa B. pa-ps C. Pa+P D. non of these...

Efficiency of a thermal cycle increases by ________________?

A. regeneration B. reheating of steam C. both A. and B. D. cooling of steam E. none of the above...

A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are________________?

A. supplied by same manufacturer loose and assembled at site B. supplied mounted on a single base C. purchased from several parties and packed together at site D. packaged boiler does not exist E. none of the above...

The ratio of heat utilised to produce steam and the heat liberated in furnace is known as___________________?

A. boiler effectiveness B. boiler evaporative capacity C. factor of evaporation D. equivalent evaporation E. boiler efficiency...

Water and sediment in fuel oil can be removed by _______________________?

A. heating the oil in the settling tanks B. cooling the oil in the settling tanks C. burning the oil D. suspension E. filtering...