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  1. The average operating pressure of Benson boiler is
  2. Duplex feed pumps are used in small steam boilers. These operate on the principle of
  3. The numbers of fire tubes in a Cochran boiler are
  4. The efficiency of steam turbines may be improved by
  5. Lancashire boiler is of
  6. The mechanical draught _________ with the amount of smoke.
  7. In a uniflow engine
  8. The process of maintaining the speed of the turbine constant for various load conditions, is known as
  9. In a nozzle, whole frictional loss is assumed to occur between
  10. Water at pressure of 4 kg/cm² and 160°C temperature when exposed to atmosphere will
  11. Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication…
  12. The specific heat of superheated steam in kcal/kg is generally of the order of
  13. The object of producing draught in a boiler is
  14. Willians line for the steam engine is a straight line relationship between the steam consumption per…
  15. Which of the following coals has the highest calorific value?
  16. A binary vapour plant consists of
  17. At critical point, i.e. p = 225.65 kg/cm², the latent enthalpy of vaporisation is
  18. A condenser where circulating water flows through tubes which are surrounded by steam, in known as
  19. The aim of a compound steam engine is
  20. Which of the following is required for a steam condensing plant?
  21. Pulverised fuel is used for
  22. The ratio of heat equivalent to brake power to the energy supplied in steam is known as
  23. The ratio of the energy required to produce the artificial draught (expressed in metres head or J/kg…
  24. In order to obtain superheated steam, a superheater is added in an existing boiler. As as result, furnace…
  25. When the cross-section of a nozzle increases continuously from entrance to exit, it is called a
  26. Which of the following statement is correct?
  27. The device attached to the steam chest for preventing explosions due to excessive internal pressure…
  28. The diameters of fire tubes and superheater tubes in locomotive boiler are
  29. The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades…
  30. A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic…