Caking coals are those which __________________________?

Related Mcqs:

In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is__________________?

A. 40% B. 25% C. 50% D. 80% E. 90%...

The fire tubes in, a Coarran and Scotish marine boiler are_________________?

A. horizontal B. vertical C. inclined D. both horizontal and vertical E. horizontal and inclined...

Pick up the wrong statement about water tube boiler in comparison to fire tube boilers ______________________?

A. former generates steam at high pressure B. former occupies less space for same power C. rate of steam flow is more in former case D. former is used for high installed capacity E. chances of explosion are less in former case...

The relative heat absorption for successively added equal areas of boiler convection heating surfaces____________________?

A. increases B. decreases C. remains unaffected D. first increases and then decreases E. first decreases and then increases...

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...