Home

When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be

A. Choked

B. Under-damping

C. Over-damping

D. None of these

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

You can do it
  1. Calorific value of coal is of the order of
  2. The diameters of fire tubes and superheater tubes in locomotive boiler are
  3. Duplex feed pumps are used in small steam boilers. These operate on the principle of
  4. For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared…
  5. The working pressure range for a LaMont boiler is
  6. The critical pressure ratio (p₂/p₁) is given by
  7. Fire tube boilers are
  8. Alkaline pyrogallate is used in Orsat's apparatus for absorption of
  9. The function of a piston in a steam engine is
  10. Thermal efficiency of a thermal power plant is of the order of
  11. Which of the following is a fire tube boiler?
  12. The ratio of the temperature rise of cooling water to the vacuum temperature minus inlet cooling water…
  13. A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut…
  14. The size of a boiler drum in pulverised fuel fired boiler, as its size and capacity, (steam pressure…
  15. The ratio of heat utilised to produce steam and the heat liberated in furnace is known as
  16. If a steam sample is nearly in dry condition, then its dryness fraction can be most accurately determined…
  17. The length of Cornish boiler is of the order of
  18. The critical pressure ratio for gases is
  19. Which of the following statement is wrong?
  20. The high steam and low water safety valve is not used in
  21. The safety valve at superheater as compared to drum safety valve setting is set at
  22. The turbine blades are
  23. The performance of a boiler is measured by the
  24. The artificial draught is produced by
  25. The function of a flywheel is
  26. Lancashire boiler is
  27. The ratio of total useful heat drop to the total isentropic heat drop, is called
  28. The diameter of a cylindrical shell of a Scotch marine boiler varies from
  29. For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is
  30. The cylinder condensation or missing quantity may be reduced by