MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
______ indicates the impact of resistance. |
| A. | Toughness |
| B. | Rigidity |
| C. | Brittleness |
| D. | Fatigue |
| Answer» B. Rigidity | |
| 2. |
The speed of a rotary knife cutter is ___ |
| A. | 100 to 500 rev/min |
| B. | 200 to 900 rev/min |
| C. | 400 to 600 rev/min |
| D. | 50 to 60 rev/min |
| Answer» D. 50 to 60 rev/min | |
| 3. |
The power consumption of colloid mill is _______ |
| A. | Very low |
| B. | Optimum |
| C. | Critical |
| D. | Very high |
| Answer» E. | |
| 4. |
THE_SPEED_OF_A_ROTARY_KNIFE_CUTTER_IS____?$ |
| A. | 100 to 500 rev/min |
| B. | 200 to 900 rev/min |
| C. | 400 to 600 rev/min |
| D. | 50 to 60 rev/min |
| Answer» D. 50 to 60 rev/min | |
| 5. |
_______indicates_the_impact_of_resistance.$ |
| A. | Toughness |
| B. | Rigidity |
| C. | Brittleness |
| D. | Fatigue |
| Answer» B. Rigidity | |
| 6. |
The power consumption of colloid mill is ______? |
| A. | Very low |
| B. | Optimum |
| C. | Critical |
| D. | Very high |
| Answer» E. | |
| 7. |
The clearance between rotor and stator is ______ |
| A. | 5 to 10 mm |
| B. | 1 to 2.5 mm |
| C. | 0 to 1.25 mm |
| D. | 5 to 15 mm |
| Answer» D. 5 to 15 mm | |
| 8. |
What does colloid mill produces? |
| A. | Emulsions and Solid dispersions |
| B. | Wet and dry products |
| C. | Coarse and fine particles |
| D. | Broad particles |
| Answer» B. Wet and dry products | |
| 9. |
At what speed stirred mill operates? |
| A. | 50 to 500 rpm |
| B. | 5 to 10 rpm |
| C. | 10 to 500 rpm |
| D. | 100 to 1500 rpm |
| Answer» E. | |
| 10. |
The fluid energy mill involves __________ |
| A. | Pressure |
| B. | Temperature |
| C. | Fluid |
| D. | Density |
| Answer» B. Temperature | |
| 11. |
What is the feed size for a Ultra-Fine grinder? |
| A. | > <sup>3</sup>‚ÅÑ<sub>4</sub> inches |
| B. | < <sup>3</sup>‚ÅÑ<sub>4</sub> inches |
| C. | > <sup>1</sup>‚ÅÑ<sub>2</sub> inches |
| D. | < <sup>1</sup>‚ÅÑ<sub>2</sub> inches |
| Answer» C. > <sup>1</sup>‚Äö√Ñ√∂‚àö√ñ‚àö√´<sub>2</sub> inches | |
| 12. |
Which of the following uses impact and attrition? |
| A. | Ball mill |
| B. | Tumbling mill |
| C. | Ultra-fine grinders |
| D. | Hammer mill |
| Answer» D. Hammer mill | |
| 13. |
What is the average particle size of ultra-fine grinders? |
| A. | 1 to 20 µm |
| B. | 4 to 10 µm |
| C. | 5 to 200 µm |
| D. | 50 to 100 µm |
| Answer» B. 4 to 10 ¬¨¬®¬¨¬µm | |