MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is the maximum coal producing state in India? |
| A. | Orissa |
| B. | West Bengal |
| C. | Jharkhand |
| D. | Assam |
| Answer» D. Assam | |
| 2. |
Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the |
| A. | requirement of large volume of combustion chamber |
| B. | incomplete combustion of coal |
| C. | risk of explosion |
| D. | chances of clinker formation |
| Answer» D. chances of clinker formation | |
| 3. |
The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. |
| A. | 100-150 |
| B. | 350-450 |
| C. | 700-850 |
| D. | 550-650 |
| Answer» C. 700-850 | |
| 4. |
'Overfire burning' in a furnace is a phenomenon characterised by the |
| A. | burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air |
| B. | supply of excess fuel |
| C. | supply of excess air |
| D. | none of the mentioned |
| Answer» B. supply of excess fuel | |
| 5. |
Height of coke oven is limited (say maximum up to 7 metres) mainly by the |
| A. | problem of uniform heating along its height. |
| B. | structural strength of silica bricks |
| C. | problem in door cleaning |
| D. | buckling of ram of pusher car at the time of coke pushing |
| Answer» B. structural strength of silica bricks | |
| 6. |
Higher fuel combustion efficiency cannot be achieved by |
| A. | preheating of fuel gases & combustion air |
| B. | supplying correct amount of combustion air |
| C. | reducing sulphur content in the fuel |
| D. | adopting proper fuel firing technique & fuel preparation |
| Answer» D. adopting proper fuel firing technique & fuel preparation | |