MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Thermal Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Lancashire boiler is easy to operate and has less maintenance and operating costs. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the steam capacity of a Cornish boiler? |
| A. | 5500 kg/hr |
| B. | 6500 kg/hr |
| C. | 7500 kg/hr |
| D. | 8500 kg/hr |
| Answer» C. 7500 kg/hr | |
| 3. |
How many flue-tubes does a Cornish boiler has? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» B. Two | |
| 4. |
Which of the following boiler mounting is NOT present in a Cochran boiler? |
| A. | Stem stop valve |
| B. | Blow off cock |
| C. | Safety valve |
| D. | Fusible plug |
| Answer» E. | |
| 5. |
Which of the following statements is correct about the smoke box in boilers? |
| A. | It collects smoke and is emptied later after being done operating the boiler |
| B. | It regulates hot gases from tubes to chimney |
| C. | It treats the smoke before it is released to the atmosphere |
| D. | It is used to store ashes |
| Answer» C. It treats the smoke before it is released to the atmosphere | |
| 6. |
What is range of efficiency of a Cochran boiler? |
| A. | 50 55% |
| B. | 60 65% |
| C. | 70 75% |
| D. | 80 85% |
| Answer» D. 80 85% | |
| 7. |
What is the area of the heating surface of a Cochran boiler? |
| A. | 100 m<sup>2</sup> |
| B. | 120 m<sup>2</sup> |
| C. | 150 m<sup>2</sup> |
| D. | 200 m<sup>2</sup> |
| Answer» C. 150 m<sup>2</sup> | |
| 8. |
What is the maximum working pressure of Cochran boiler? |
| A. | 8 bar |
| B. | 10 bar |
| C. | 15 bar |
| D. | 20 bar |
| Answer» D. 20 bar | |
| 9. |
What is the height of a Cochran boiler? |
| A. | 5.79 m |
| B. | 4.10 m |
| C. | 4.26 m |
| D. | 3.50 m |
| Answer» B. 4.10 m | |
| 10. |
What is the shell diameter of a Cochran boiler? |
| A. | 2.00 m |
| B. | 1.50 m |
| C. | 1.00 m |
| D. | 2.75 m |
| Answer» E. | |
| 11. |
Cochran boiler is a multi-tube boiler. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
What is the purpose of fire door in boilers? |
| A. | It is opened to increase air supply for combustion |
| B. | It is opened to put out the fire, in case of emergency |
| C. | It allows the hot gases to pass safely through chimney |
| D. | It is used to feed fuel for combustion |
| Answer» E. | |
| 13. |
In a Simple Vertical boiler, two cross tubes are provided with the fire box. Which of the following statement about the orientation of these tubes is correct? |
| A. | Both of them are vertical |
| B. | Both of them are horizontal |
| C. | Both of them are inclined |
| D. | One is horizontal and the other one is vertical |
| Answer» D. One is horizontal and the other one is vertical | |
| 14. |
What is the highest steam production rate that can be achieved by Simple Vertical boiler? |
| A. | 1000 kg/hr |
| B. | 2500 kg/hr |
| C. | 3000 kg/hr |
| D. | 5000 kg/hr |
| Answer» C. 3000 kg/hr | |
| 15. |
In Simple Vertical boiler, the ash that falls off from the grate falls in the _____ |
| A. | sink |
| B. | ash pit |
| C. | ash disposer |
| D. | down-header |
| Answer» C. ash disposer | |