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. |
Which of the following is NOT a feature of a good boiler? |
| A. | Light in weight |
| B. | Steam production rate should be as per requirement |
| C. | Capable of quick starting |
| D. | Water and gas circuits should be such as to allow maximum fluid velocity |
| Answer» E. | |
| 2. |
Furnace is also called fire-box. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which of the following is a refractory material? |
| A. | Fire brick |
| B. | Plastic |
| C. | Wood |
| D. | Paper |
| Answer» B. Plastic | |
| 4. |
What is lagging? |
| A. | The formation of steam bubbles on the surface of water |
| B. | Blocks of asbestos or magnesia insulation wrapped on the outside of a boiler shell |
| C. | The deposit of medium to extreme hardness occurring on water heating surfaces |
| D. | Heat insulation material |
| Answer» C. The deposit of medium to extreme hardness occurring on water heating surfaces | |
| 5. |
According to boiler terminology, the removal of the mud and other impurities of water from the lowest part of the boiler is termed as _____ |
| A. | lagging |
| B. | blowing off |
| C. | waste removal |
| D. | foaming |
| Answer» C. waste removal | |
| 6. |
Which of the following according to boiler terminology, is the term used for the deposition of medium to extreme hardness occurring on water heating surfaces because of undesirable condition in the boiler water? |
| A. | Refractory |
| B. | Foaming |
| C. | Scale |
| D. | Lagging |
| Answer» D. Lagging | |
| 7. |
According to boiler terminology, Formation of steam bubbles on the surface of water is called _____ |
| A. | foaming |
| B. | scale |
| C. | lagging |
| D. | bubbling |
| Answer» B. scale | |
| 8. |
The items that are added to increase the efficiency of boiler are called _____ |
| A. | mountings |
| B. | accessories |
| C. | setting |
| D. | boiler essentials |
| Answer» C. setting | |
| 9. |
The items that are added to a boiler for safe operation are called _____ |
| A. | safety components |
| B. | setting |
| C. | accessories |
| D. | mountings |
| Answer» E. | |
| 10. |
In boiler terminology, the volume of the shell occupied by water is termed as _____ |
| A. | water space |
| B. | steam space |
| C. | wet volume |
| D. | wet space |
| Answer» B. steam space | |
| 11. |
What is the chamber formed by the space above the grate and below boiler shell called, where combustion takes place? |
| A. | Grate surface |
| B. | Mounting |
| C. | Furnace |
| D. | Setting |
| Answer» D. Setting | |
| 12. |
_____ is the platform in the furnace upon which fuel is burnt. |
| A. | Shell |
| B. | Grate |
| C. | Setting |
| D. | Heat exchanger |
| Answer» C. Setting | |
| 13. |
The function of “Setting” (Boiler term) is to confine heat to the boiler and form a passage for gases. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
What is the usual geometry of a boiler shell? |
| A. | Torus |
| B. | Cuboidal |
| C. | Cubical |
| D. | Cylindrical |
| Answer» E. | |
| 15. |
Which of the following factors is NOT considered while selecting a boiler? |
| A. | Available floor area |
| B. | Number of tubes in the boiler |
| C. | Available fuel and water |
| D. | The portable load factor |
| Answer» C. Available fuel and water | |