MCQOPTIONS
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MCQOPTIONS
This section includes 362 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
A _____________ mixer resembles a ball mill without balls? |
| A. | Banbury |
| B. | Pug mill |
| C. | Tumbling |
| D. | Pan |
| Answer» D. Pan | |
| 352. |
A _____________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end? |
| A. | Compartment |
| B. | Tube |
| C. | Rod |
| D. | Pebble |
| Answer» B. Tube | |
| 353. |
A fluid energy mill is used for __________________? |
| A. | Cutting |
| B. | Grinding |
| C. | Ultra-grinding |
| D. | Crushing |
| Answer» D. Crushing | |
| 354. |
A fluid energy mill is used for_________________? |
| A. | Cutting |
| B. | Grinding |
| C. | Ultra grinding |
| D. | Crushing |
| Answer» D. Crushing | |
| 355. |
A _______________ employs a set of screen across a flow channel for the separation of dirt/rust from a flowing liquid stream? |
| A. | Thickener |
| B. | Classifier |
| C. | Strainer |
| D. | Clarifier |
| Answer» D. Clarifier | |
| 356. |
A cottrell precipitator makes use of the ______________ for dusty air cleaning? |
| A. | Electric spark |
| B. | Corona discharge |
| C. | Alternating current |
| D. | None of these |
| Answer» C. Alternating current | |
| 357. |
A compressible cake has the_________________? |
| A. | Maximum porosity at the upstream side |
| B. | Maximum porosity at the filter medium |
| C. | Same porosity throughout the cake thickness |
| D. | None of these |
| Answer» B. Maximum porosity at the filter medium | |
| 358. |
A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ___________________? |
| A. | ½w2 . R2 . ρL |
| B. | ½w2 . δ2 . ρL |
| C. | ½w2 . δρL (2R + δ) |
| D. | ½w2 . R . ρL(R + 2δ) |
| Answer» D. ½w2 . R . ρL(R + 2δ) | |
| 359. |
A belt conveyor used for the transportation of materials can___________________? |
| A. | Run upto 1 km |
| B. | Travel at a speed upto 300 metres/minute |
| C. | Handle materials upto 5000 tons/hr |
| D. | All A., B. and C. |
| Answer» E. | |
| 360. |
A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is_________________? |
| A. | 0.90 μm/s |
| B. | 1 μm/s |
| C. | 22.1 μm/s |
| D. | 0.02 μm/s |
| Answer» C. 22.1 μm/s | |
| 361. |
200 mesh sieve size corresponds to _____________ microns? |
| A. | 24 |
| B. | 74 |
| C. | 154 |
| D. | 200 |
| Answer» C. 154 | |
| 362. |
200 mesh screen means 200 openings per_____________________? |
| A. | cm2 |
| B. | cm |
| C. | inch |
| D. | inch2 |
| Answer» D. inch2 | |