MCQOPTIONS
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MCQOPTIONS
This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which type of control valve can be used for 90-degree change in direction of flow? |
| A. | Butterfly valve |
| B. | Diaphragm valve |
| C. | Globe valve |
| D. | Gate valve |
| Answer» D. Gate valve | |
| 2. |
Which type of autoclaves is mainly used for bulk research work? |
| A. | Vertical autoclave |
| B. | Horizontal autoclave |
| C. | Sterilization pressure cooker |
| D. | Table top steam sterilizer |
| Answer» C. Sterilization pressure cooker | |
| 3. |
The sterilizer of pressure cooker type is made of ________ |
| A. | Aluminium |
| B. | Steel |
| C. | Stainless steel |
| D. | Copper |
| Answer» B. Steel | |
| 4. |
THE_STERILIZER_OF_PRESSURE_COOKER_TYPE_IS_MADE_OF_________?$ |
| A. | Aluminium |
| B. | Steel |
| C. | Stainless steel |
| D. | Copper |
| Answer» B. Steel | |
| 5. |
Which type of control valve can be used for 90-degree change in direction of flow?$ |
| A. | Butterfly valve |
| B. | Diaphragm valve |
| C. | Globe valve |
| D. | Gate valve |
| Answer» D. Gate valve | |
| 6. |
Which type of autoclaves is mainly used for bulk research work?$ |
| A. | Vertical autoclave |
| B. | Horizontal autoclave |
| C. | Sterilization pressure cooker |
| D. | Table top steam sterilizer |
| Answer» C. Sterilization pressure cooker | |
| 7. |
What should be the rangeability of the control valve? |
| A. | Gain |
| B. | Cv |
| C. | Turndown |
| D. | Stoke% |
| Answer» D. Stoke% | |
| 8. |
The gain of a control valve should never be less than _______ |
| A. | 1 |
| B. | 5 |
| C. | 0.5 |
| D. | 0.75 |
| Answer» D. 0.75 | |
| 9. |
Direct acting actuators fall under which category of actuator? |
| A. | Diaphragm actuator |
| B. | Piston actuator |
| C. | Electro hydraulic actuator |
| D. | Manual actuators |
| Answer» B. Piston actuator | |
| 10. |
Which type of actuator is preferred when high and fast stroking speed is required? |
| A. | Direct acting actuator |
| B. | Reverse acting actuator |
| C. | Electro hydraulic actuator |
| D. | Piston actuator |
| Answer» E. | |
| 11. |
Which of these control valves has the lowest pressure recovery? |
| A. | Globe valve |
| B. | Ball valve |
| C. | Butterfly valve |
| D. | Plug valve |
| Answer» B. Ball valve | |
| 12. |
Which type of valve is preferred for sequential operations? |
| A. | Electric actuated control valve |
| B. | Single acting control valve |
| C. | Quick opening valve |
| D. | Double acting control valve |
| Answer» D. Double acting control valve | |
| 13. |
What is inherent flow characteristics? |
| A. | The curve obtained between control valve capacity and valve stem travel |
| B. | The curve obtained between control valve capacity and Cv |
| C. | The curve obtained between Cv and valve stem travel |
| D. | The curve obtained between control valve capacity and pressure drop |
| Answer» B. The curve obtained between control valve capacity and Cv | |
| 14. |
Which of the following is not a type of control butterfly valve? |
| A. | Single off-set |
| B. | Concentric |
| C. | Triple off-set |
| D. | Concentric centreline |
| Answer» C. Triple off-set | |
| 15. |
Which of these is a linear motion control valve? |
| A. | Ball valve |
| B. | Butterfly valve |
| C. | Plug valve |
| D. | Diaphragm valve |
| Answer» E. | |
| 16. |
What is the operating temperature for table top steam sterilizer? |
| A. | 110-115 ÀöC |
| B. | 121-130ÀöC |
| C. | 121-135ÀöC |
| D. | 121ÀöC |
| Answer» D. 121‚àö√Ñ‚àö‚àÇC | |
| 17. |
What is the inner surface of autoclaves made of? |
| A. | Mild steel |
| B. | Stainless steel |
| C. | Copper |
| D. | Aluminum |
| Answer» C. Copper | |
| 18. |
A device that uses steam to sterilize equipment and other objects is a medical autoclave. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 19. |
All the trapped air is removed from the autoclave before activation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 20. |
Who invented the autoclave? |
| A. | Pasteur |
| B. | Charles Chamberland |
| C. | Arnold O. Beckman |
| D. | Antonie van Leeuwenhoek |
| Answer» C. Arnold O. Beckman | |
| 21. |
What is the common temperature used in autoclaves? |
| A. | 121ÀöC |
| B. | 109ÀöC |
| C. | 135ÀöC |
| D. | 142ÀöC |
| Answer» B. 109‚àö√Ñ‚àö‚àÇC | |
| 22. |
Autoclaves are used in the medical applications to perform ______ |
| A. | Vulcanization |
| B. | Sterilization |
| C. | Heating |
| D. | Cleaning |
| Answer» C. Heating | |
| 23. |
________ is a pressure chamber used to carry out processes at high temperature and pressure. |
| A. | Oven |
| B. | Micro clave |
| C. | Autoclave |
| D. | Hot air oven |
| Answer» D. Hot air oven | |