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The velocity of steam at throat of the nozzle is __________ the velocity of sound.

A. Equal to

B. Less than

C. More than

D. None of these

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

You can do it
  1. The fire tubes in a Scotch marine boiler are
  2. Which of the following boilers is best suited to meet fluctuating demands?
  3. The diameter of Cornish boiler varies from
  4. The steam enters the nozzle at a
  5. A nozzle is said to be a convergent nozzle
  6. Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean…
  7. Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler
  8. 100% efficiency of a thermal cycle cannot be achieved because of
  9. The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate…
  10. A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water…
  11. The size of a boiler drum in pulverised fuel fired boiler, as its size and capacity, (steam pressure…
  12. The effect of friction on the flow of steam through a nozzle is to
  13. The saturation temperature of steam with increase in pressure increases
  14. The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure…
  15. One kilowatt-hour energy is equivalent to
  16. Willians line for the steam engine is a straight line relationship between the steam consumption per…
  17. Incomplete combustion can be best judged by
  18. The high steam and low water safety valve is used to blow off steam when the
  19. Which of the following statement is correct?
  20. Sublimation region is the region where
  21. Water tube boilers are those in which
  22. The factor of evaporation for all boilers is always
  23. The basic job of feed water treatment in boilers is to overcome the problem of
  24. There is always some steam left in the clearance space from the previous stroke. This steam left in…
  25. In order to compare the capacity of boilers, the feed water temperature and working pressure are taken…
  26. The best suited coal for chain or travelling grate stoker boiler is
  27. In designing air preheaters, the important design consideration is that
  28. In water wall furnace, the heat is transferred to the water walls by
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  30. Over fire burning is the phenomenon of