MCQOPTIONS
Saved Bookmarks
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. |
A Steam separator is a boiler mounting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
In water level indicator, the glass tube that indicated the water level is called _____ |
| A. | measurement tube |
| B. | guard glass tube |
| C. | gauge glass tube |
| D. | level tube |
| Answer» D. level tube | |
| 3. |
Which of the following statements about high steam and low water safety valve is FALSE? |
| A. | It can be used on portable boilers |
| B. | Steam escapes out when water level falls below a certain level |
| C. | Steam is released when its pressure exceeds a certain pressure |
| D. | It is generally used in Lancashire and Cornish boiler |
| Answer» B. Steam escapes out when water level falls below a certain level | |
| 4. |
Spring loaded safety valve is suitable for locomotive and marine engines. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following statements about dead weight safety valve is FALSE? |
| A. | It is unsuitable for Locomotive boilers |
| B. | It is suitable for low pressure and low capacity boilers |
| C. | To lift the valve the inside pressure must overcome the valve weight and the dead weights |
| D. | It is suitable for high pressure boilers |
| Answer» E. | |
| 6. |
Which of the following statements about safety valves is FALSE? |
| A. | It is usually mounted on the top of the shell |
| B. | It releases the steam if the steam pressure exceeds the rated pressure |
| C. | Dead weight safety valve is a type of safety valve |
| D. | An attendant is required to operate the valve |
| Answer» E. | |
| 7. |
Which of the following is NOT a type of safety valve? |
| A. | Dead weight safety valve |
| B. | Lever safety valve |
| C. | Spring loaded safety valve |
| D. | High water and low steam safety valve |
| Answer» E. | |
| 8. |
The function of a safety valve is _____ |
| A. | to release the excess steam when the steam pressure exceeds the rated pressure |
| B. | to extinguish fire when the temperature reaches impermissible value |
| C. | to release the excess water |
| D. | it cuts off the water supply when water level reaches its maximum limit |
| Answer» B. to extinguish fire when the temperature reaches impermissible value | |
| 9. |
Which of the following statements about Bourdon pressure gauge is FALSE? |
| A. | Double-tube Bourdon gauge is more rigid than the single tube |
| B. | Double-tube Bourdon gauge is more suitable for portable boilers |
| C. | It measures the gauge pressure |
| D. | The movement of the free end of the elliptical tube is proportional to the internal pressure of the boiler |
| Answer» E. | |
| 10. |
The syphon tube in the Bourdon pressure gauge (single tube) is filled with _____ |
| A. | mercury |
| B. | turpentine oil |
| C. | mineral water |
| D. | condensed water |
| Answer» E. | |
| 11. |
Which of the following statements about compound pressure gauge is TRUE? |
| A. | It measure the hydrostatic pressure exerted by water at the bottom surface |
| B. | It can measure pressures above and below atmospheric pressure on the same dial |
| C. | It is installed at the bottom of the boiler shell |
| D. | It measures absolute pressure |
| Answer» C. It is installed at the bottom of the boiler shell | |
| 12. |
What is the purpose of pressure gauge? |
| A. | It measures the pressure exerted on the boiler shell from outside |
| B. | It measure the current atmospheric pressure |
| C. | It measures pressure exerted inside the boiler shell |
| D. | It measures hydrostatic pressure of water at the bottom of the boiler shell |
| Answer» D. It measures hydrostatic pressure of water at the bottom of the boiler shell | |
| 13. |
What is the purpose of guard glass in a glass-tube water level indicator? |
| A. | It protects the attendant, if water starts leaking |
| B. | It protects the water gauge, if steam pressure increases the design pressure |
| C. | It protects the attendant, if boiler cracks |
| D. | It protects the attendant, if the gauge glass breaks |
| Answer» E. | |
| 14. |
Water level indicator _____ |
| A. | indicates the amount of steam in the boiler |
| B. | indicates the amount of water in the boiler |
| C. | indicates the amount of water converted to steam |
| D. | indicates the amount of steam left in the boiler |
| Answer» C. indicates the amount of water converted to steam | |
| 15. |
Which of the following statements regarding boiler mountings is TRUE? |
| A. | They ensure safe operation of the boiler |
| B. | They are installed to increase efficiency of the boiler |
| C. | Economizer, superheater and feed pumps are boiler mountings |
| D. | Water level indicator is not a boiler mounting |
| Answer» B. They are installed to increase efficiency of the boiler | |