Related Mcqs:

1. The delivery pressure of boiler feed water pump compared to the boiler steam pressure is___________________?

   A. Same
   B. Slightly less
   C. Slightly more
   D. Much more

2. The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters in a thermal power plant boiler is the_______________?

   A. Water alkalinity & leakage
   B. Hydrazine addition during feed water treatment
   C. Release of non-condensable gas from water in the boiler
   D. Scale formation

3. Which of the following is a boiler accessory i.e., not a boiler mounting ?

   A. Blow off cock
   B. Feed check valve
   C. Feed water pump
   D. Stop valve

4. The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the ______________ of a boiler ?

   A. Evaporative capacity
   B. Evaporation efficiency
   C. Thermal efficiency
   D. Steam load

5. A high pressure boiler generates steam at a pressure greater than _____________________ kg/cm2 ?

   A. 10
   B. 30
   C. 50
   D. 80

6. Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about _______________ percent ?

   A. 1
   B. 10
   C. 30
   D. 50

7. A fire tube boiler is limited to a maximum steam pressure of about ______________ kg/cm2 ?

   A. 6
   B. 18
   C. 38
   D. 52

8. Dry saturated steam can be converted into super heated steam by____________________?

   A. Increasing its cross-sectional area of flow
   B. Passing it through a pressure reducing valve
   C. Forcing it downwards through a vertical tube
   D. None of these

9. Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam will be_________________?

   A. Wet
   B. Saturated
   C. Superheated
   D. None of these

10. Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?

    A. Decreases
    B. Increases
    C. Remain same
    D. May increase or decrease