In forced circulation type boiler__________________?

Related Mcqs:

1. 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

2. 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

3. 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

4. In accelerated circulation type boiler________________?

   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

5. 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

6. The capacity of induced draft fan compared to forced draft fan in a boiler is__________________?

   A. same
   B. more
   C. less
   D. less or more depending on size of boiler
   E. unpredictable

7. 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

8. 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

9. 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

10. The following type of carburettor is preferred_______________?

    A. concentric type
    B. eccentric type
    C. horizontal type
    D. vertical type
    E. none of the above