The fire tubes in a Cochran boiler usually have _________ diameter.

A. 6.25 mm

B. 62.5 mm

C. 72.5 mm

D. 92.5 mm

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

You can do it
  1. The ratio of the clearance volume to the swept volume is called
  2. The expansion of steam, as it flows over the blades in reaction turbine, represents
  3. The function of injector used in small steam plants is to
  4. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric…
  5. The critical pressure ratio for initially wet steam is
  6. The fusible plug in small boilers is located
  7. By compounding the expansion of steam in two or more cylinders, the length of stroke
  8. The steam enters the nozzle at a
  9. An air preheater is installed
  10. A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off…
  11. The pressure velocity compounded impulse turbine allows a bigger pressure drop and hence __________…
  12. Sulphur in coal results in
  13. The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by
  14. The critical pressure gives the velocity of steam at the throat
  15. Which of the following is required for a steam condensing plant?
  16. A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls…
  17. Which of the following is a water tube boiler?
  18. A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine…
  19. Film boiling occurs at
  20. An economiser is generally placed between
  21. The function of a piston rod is
  22. Heating wet steam at constant temperature is heating it at constant
  23. Green coal, in order to be burnt, must be
  24. The fire tubes in a Scotch marine boiler are
  25. The value of diagram factor depends upon
  26. Size of boiler tubes is specified by
  27. The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water…
  28. The actual power generated in the engine cylinder is called
  29. The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades…
  30. The efficiency of a boiler is defined as