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This section includes 10 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. |
IN_WATER_TUBE_BOILERS?$ |
A. | forced circulation takes place |
B. | water passes through the tubes which are surrounded by flames and hot gases |
C. | the flames and hot gases pass through the tubes which are surrounded by water |
D. | none of the mentioned |
Answer» D. none of the mentioned | |
2. |
FLUE_GAS_DISCHARGE_VELOCITY_THROUGH_CHIMNEY_OF_A_BIG_THERMAL_POWER_PLANT_MAY_BE_AROUND____________M/SEC.?$ |
A. | 500 |
B. | 0.5 |
C. | 10 |
D. | 50 |
Answer» D. 50 | |
3. |
Fuel gases containing hydrocarbons (e.g. coke oven gas) are not preheated before burning, mainly becaus? |
A. | there are chances of explosion during preheating |
B. | it reduces its calorific value tremendously |
C. | the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot |
D. | it reduces its flame temperature tremendously |
Answer» D. it reduces its flame temperature tremendously | |
4. |
Which of the following gaseous fuels has the lowest calorific value? |
A. | Refinery Gas |
B. | Gobar Gas |
C. | Converter Gas |
D. | Blast Furnace Gas |
Answer» E. | |
5. |
The function of the fusible plug installed in a furnace is? |
A. | to detect excess current |
B. | to detect excess heat |
C. | to detect water level in the tube |
D. | to detect water level in the shell |
Answer» E. | |
6. |
Which of the following is a type of internally fired boiler? |
A. | Package boiler |
B. | HRT boiler |
C. | Lancashire boiler |
D. | Locomotive type boiler |
Answer» B. HRT boiler | |
7. |
Which of these is an externally fired boiler? |
A. | Package boiler |
B. | Scotch-marine boiler |
C. | Lancashire boiler |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
8. |
Which of these is a type of fire-tube boiler? |
A. | Externally fired |
B. | Internally fired |
C. | Both of the mentioned |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
9. |
Which of the following is not an advantage of a fire-tube boiler? |
A. | low first cost |
B. | reliability in operation |
C. | more draught required |
D. | quick response to load changes |
Answer» D. quick response to load changes | |
10. |
Fire-tube boilers are used in? |
A. | industrial steam generators |
B. | utility steam generators |
C. | marine steam generators |
D. | none of the mentioned |
Answer» B. utility steam generators | |