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The mechanical draught _________ with the amount of smoke.

A. Increases

B. Decreases

C. Does not effect

D. None of these

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

You can do it
  1. The ratio of total useful heat drop to the total isentropic heat drop, is called
  2. Which of the following is a water tube boiler?
  3. Mechanical equivalent of heat for 1 kcal or Joule's equivalent is equal to
  4. If partial pressure of air and steam be pa and ps respectively in a condenser, then according to Dalton's…
  5. The number of flue tubes in Lancashire boiler is
  6. Sublimation region is the region where
  7. An economiser _________ the steam raising capacity of a boiler.
  8. The efficiency of the plant __________ with the mechanical draught.
  9. The change in internal energy in steam engines equals to
  10. Pour point of fuel oil is the
  11. Which of the following statement is correct?
  12. Throttle governing of steam engines is a method of controlling the engine output by varying
  13. The fire tubes in a Cochran boiler usually have _________ diameter.
  14. Film boiling occurs at
  15. Parson's turbine is a
  16. In locomotives, the draught is produced by
  17. When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent…
  18. The shell of the Cochran boiler is made hemispherical
  19. The behaviour of coal in a furnace is determined by
  20. The ratio of heat equivalent to brake power to the energy supplied in steam is known as
  21. A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached…
  22. The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes…
  23. A compound steam engine in which the high pressure and low pressure cylinders have common piston rod,…
  24. The critical pressure ratio is given by (where p₁ = Initial pressure of steam, and p₂…
  25. Which of the following statement indicates the difference between Cornish boiler and Lancashire boiler?
  26. Which of the following statement is wrong?
  27. Curtis turbine is a
  28. In a Tandem type compound engine, the high pressure and low pressure cylinders
  29. By compounding the expansion of steam in two or more cylinders, the length of stroke
  30. Which device is used in thermal power plants to reduce level of pollution?