Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of__________________?

Related Mcqs:

1. Flue gas discharge velocity through chimney of a big thermal power plant may be around ________________ m/sec?

   A. 0.5
   B. 10
   C. 50
   D. 500

2. White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is_________________?

   A. Tar
   B. Coke oven gas
   C. Pitch
   D. Pulverised coke

3. Stack (chimney) height in a big thermal power plant is dictated by the___________________?

   A. Pollution control aspect
   B. Draught to be created
   C. Limitation of constructional facilities
   D. None of these

4. White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is_______?

   A. Tar
   B. Sulphide Coke
   C. Coke Oven Gas
   D. Pulverised coke

   Submitted by: Muhammad Mutsadiq Umer

5. Which of the following fuels is generally not used in thermal power plant boiler firing ?

   A. Furnace oil, light diesel oil and tar/PCM
   B. Pulverised coking coal
   C. Coal middling from washeries
   D. B.F. gas, coke oven gas and L.D. converter gas

6. Natural draft created by the chimney depends upon _____________________?

   A. Temperature of the flue gas
   B. Its height
   C. Both A. & B.
   D. Neither A. nor B.

7. For maximum discharge through a chimney, its height should be___________________?

   A. 200 meters
   B. Infinitely long
   C. More than 105.7 metres
   D. Equal to the height of the hot gas column producing draught

8. Natural draught produced by a chimney depends upon the _____________________?

   A. Density of the chimney gases
   B. Height of the chimney
   C. Both A. and B.
   D. Neither A. nor B.

9. During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the____________________?

   A. Incomplete combustion
   B. Complete combustion
   C. High oxygen in flue gas
   D. None of these

10. Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant ?

    A. Ammonium sulphate
    B. Ammonium nitrate
    C. Ammonium phosphate
    D. None of these