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Desecration of feed water is carried out because it reduces

A. Cavitation of boiler feed pumps

B. Corrosion caused by oxygen

C. Heat transfer coefficient

D. pH value of water

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  1. There is always some steam left in the clearance space from the previous stroke. This steam left in…
  2. Stage efficiency is also known as
  3. The effect of super-saturation is that the
  4. The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency,…
  5. Heating of dry steam above saturation temperature is known as
  6. The major axis of elliptical manholes on the shell should be provided
  7. 1 kg.m is equal to
  8. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric…
  9. Which of the following statement is wrong?
  10. Willian's law states that the steam consumption per hour provided with a throttled governor is proportional…
  11. The temperature of flue gases at air heater outlet should be
  12. Primary air is the air used to
  13. The diameter of internal flue tubes in a Lancashire boiler compared to its shell is
  14. Equivalent evaporation of water is the evaporation for a feed water supply at 100°C
  15. Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean…
  16. The artificial draught is produced by
  17. Secondary air is the air used to
  18. Which of the following statement is wrong?
  19. Which of the following is a fire tube boiler?
  20. The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades…
  21. In a nozzle, whole frictional loss is assumed to occur between
  22. The pressure of steam __________ while flowing through a nozzle.
  23. A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached…
  24. The Locomotive boiler has
  25. The biggest size of thermal power unit operating in India is
  26. In an impulse reaction turbine, the pressure drops gradually and continuously over
  27. In locomotives, the draught is produced by
  28. Degree of reaction is defined as the ratio of
  29. In fire tube boilers
  30. The theoretical indicator diagram of a simple steam engine is based upon the assumption that