Water hammer is caused in steam carrying pipelines, because of

A. Partial condensation of steam

B. Vibration of the pipeline

C. High degree of superheat of steam

D. Its exposure to torrential rain

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

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  2. Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
  3. Viscoelastic behaviour is observed in __________ materials.
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  5. __________ wire is never used for making the heating element.
  6. Addition of __________ to steel does not help in improving its machinability.
  7. The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
  8. The amount of different substances produced, when the same quantity of electricity is passed through…
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  10. A pycnometer is used for the measurement of
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  12. Dephosphorization of molten pig iron is favoured by
  13. Nickel is a __________ material.
  14. In the acid Bessemer process, the hot metal should have the following composition.
  15. Tesla metre per ampere (T. m/A) is the unit for the measurement of
  16. A psychrometer does not measure the __________ temperature of moist air.
  17. Desalination of water
  18. __________ is not used as a material of construction in thermocouples.
  19. In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________…
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  21. The most abundant metal present in the earth's crust is;
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  25. Particle nature of cathode rays is proved due to the fact that they
  26. In __________ process, there is an increase in entropy with no degradation of energy.
  27. Fibre glass is a composite material of
  28. Hot extrusion process is not used for making
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  30. __________ pipe is the most suitable for carrying sanitary drainage.