A. heating takes place at bottom and the water supplied at bottom gets converted into the mixture of stdam bubbles and hot water which rise to durm
B. water is supplied in drum and through downcomers” located in atmospheric conditon it passes to the water wall and rises to durm in the from of mixture of water and steam
C. feed pump is employed to supplement natural circulation in water wall type furnace
E. water is converted into steam in one pass without any recirculation
E. water is fed under high pressure and high velocity
Related Mcqs:
- The diameter of tubes for natural circulation boiler as compared to controlled circulation boilers is___________________?
A. more
B. less
C. same
D. could be more or less depending on other factors
E. none of the above - Which of the following is a fire tube boiler________________?
A. locomotive boiler
B. Babcock and Wilcox boiler
C. Stirling boiler.
D. all of the above
E. none of the above - In natural circulation type boiler _______________?
A. heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
B. water is supplied in durm and through down-comers located in atmospheric conditon it passes to the water wall and rises to drum in the form of mixture of water and steam
C. feed pump is employed to supplement natural circulation in water wall type furnace
D. water is converted into steam in one . pass without any recirculation
E. water is fed at atmospheric pressure - In forced circulation type boiler__________________?
A. heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
B. water is supplied in drum and through down-comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
C. feed pump is employed to supplement natural circulation in water wall type furnace
D. water is converted into steam in one pass without any recirculation
E. water is heated in a large number of tubes - An open vessel of water is accelerated up an inclined plane. The free water surface will__________________?
A. be horizontal
B. make an angle in direction of inclination of inclined plane
C. make an angle in opposite direction to inclination of inclined plane
D. any one of above is possible
E. none of the above - Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler _________________?
A. increases
B. decreases
C. remains unaffected
D. first increases and then decreases
E. first decreases and then increases - Locomotive type’ boiler is__________________?
A. horizontal multitubular water tube boiler
B. water wall enclosed furnace type
C. vertical tubular fire tube type
D. horizontal multi-tubular fire tube type
E. none of the above types - In forced recirculation type boiler__________________?
A. heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
B. water is supplied in drum and through down-comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam
C. feed pump is employed to supplement natural circulation in water wall type furnace
D. water is converted into steam in one pass without any recirculation
E. heating of water takes place in stages - Which type of boiler can meet rapid changes of load____________________?
A. vertical fire tube type
B. horizontal fire tube type
C. horizontal water tube type
D. vertical water tube type
E. forced circulation type - If overhead clearance is less, then the following type of engine should be selected__________________?
A. V-type
B. In-line
C. Vertical
D. Horizontal
E. Radial
