Boiler tube size is specified by its thickness and __________ diameter.

A. Outside

B. Inside

C. Mean

D. None of these

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

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  1. __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where…
  2. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
  3. Which one can be directly solidified from gaseous state without entering into liquid state?
  4. Which of the following is an unconventional source of energy?
  5. Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
  6. Which one of the following is incombustible?
  7. The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong
  8. The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters…
  9. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
  10. For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
  11. __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
  12. Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
  13. At the point of boundary layer separation in fluid flow, the
  14. Fine grained steels have
  15. Which of the following is not an explosive?
  16. The excess air required for the combustion of pulverised coal is of the order of about __________ percent.
  17. Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.
  18. Which of the following has the least value of ultimate tensile strength (UTS)?
  19. Batch process is preferred over continuous process, when the
  20. Primary designation of steel is based on its
  21. Calorific value of __________ are almost same.
  22. What is the value of entropy at 273°K?
  23. Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion…
  24. Boiler draught of 10 mm water column is equivalent to
  25. Powder metallurgy is used to produce
  26. Steels with high carbon equivalent have poor Weldability, because in these steels during welding
  27. The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature…
  28. Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
  29. The most important consideration in value engineering is the
  30. Gas turbine normally employs a constant __________ cycle.