MCQOPTIONS
Saved Bookmarks
This section includes 8 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. |
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 | |
| 2. |
The maximum adiabatic flame temperature is attained when the fuel is burnt with __________ |
| A. | theoretically required amount of air |
| B. | less than theoretically required amount of air |
| C. | more than theoretically required amount of air |
| D. | theoretically required amount of oxygen |
| Answer» E. | |
| 3. |
__________ present in coal is not determined in its ultimate analysis. |
| A. | Fixed Carbon |
| B. | Total Carbon |
| C. | Nitrogen |
| D. | Hydrogen |
| Answer» B. Total Carbon | |
| 4. |
Coking time in beehive coke oven is about __________ |
| A. | one week |
| B. | 12 hours |
| C. | 2-3 days |
| D. | 2 weeks |
| Answer» D. 2 weeks | |
| 5. |
Gobar gas is produced by the __________ of ‘gobar’ (cow dung). |
| A. | Fermentation |
| B. | Condensation |
| C. | Combustion |
| D. | Distillation |
| Answer» B. Condensation | |
| 6. |
If d is the diffusion coefficient and t is the boundary layer thickness. Then the mass transfer coefficient k is given by? |
| A. | k = d x t |
| B. | k = d / t |
| C. | k = d + t |
| D. | k = d – t |
| Answer» C. k = d + t | |
| 7. |
Which law deals with the rate of diffusion of Oxygen per unit surface area of the particle? |
| A. | Kirchhoff’s Law |
| B. | Plank’s Law |
| C. | Fourier’s Law |
| D. | Fick’s Law |
| Answer» E. | |
| 8. |
Which of these is the outer most coating in the burning of a coke particle? |
| A. | Oxygen |
| B. | Carbon monoxide |
| C. | Carbon dioxide |
| D. | Ash Layer |
| Answer» B. Carbon monoxide | |