The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by

A. V = 2g H'

B. V = 2g/H'

C. V = H'/2g

D. V = 2gH'

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The number of water level indicators in a boiler are generally _________ in number.
  2. Water and sediment in fuel oil can be removed by
  3. The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the…
  4. While steam expands in turbines, theoretically the entropy
  5. A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut…
  6. Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication…
  7. The evaporation of 15.653 kg of water per hour from and at 100°C is called
  8. The fittings mounted on the boiler for its proper and safe functioning is a
  9. The artificial draught is produced by
  10. The critical pressure ratio for initially wet steam is
  11. Which device is used in thermal power plants to reduce level of pollution?
  12. The maximum efficiency of a reaction turbine is
  13. The chimney draught varies with
  14. The crown of the fire box is made hemispherical in order to
  15. All steam engines work on
  16. The indicated thermal efficiency is defined as the
  17. Steam turbines may be classified according to
  18. In a boiler, the heat is lost
  19. Curtis turbine is a
  20. Which of the following statement is wrong?
  21. A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached…
  22. Stage efficiency is also known as
  23. A fusible plug is fitted in small boilers in order to
  24. A supercritical boiler is one that operates above the pressure and temperature of following values
  25. The main object of a boiler trial is
  26. In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from…
  27. In reaction turbines, the axial thrust is due to
  28. Calorific value of coal is of the order of
  29. For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet…
  30. For maximum discharge through a chimney, the condition is that height of hot gas column producing the…