MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Active particles which are quite large sternly repel the emulsion phase and hence the mass transfer rate augments with the ________ of the inert bed material size and _________ with increase of its active particle’s diameter. |
| A. | Increase, Decrease |
| B. | Increase, Increase |
| C. | Decrease, Increase |
| D. | Decrease, Decrease |
| Answer» B. Increase, Increase | |
| 2. |
Gas to particle heat transfer coefficients can be calculated by the equation given below, which one is correct for Re/ϵ < 200. |
| A. | Nu=1.6×10-2 \((\frac{Re}{\in})^{1.3}\) Pr0.33 |
| B. | Nu=1.6×10-2 \((\frac{Re}{\in})^{1.3} Pr^\frac{2}{3}\) |
| C. | Nu=1.6×10-2 \((\frac{Re}{\in})^\frac{2}{3}\) Pr0.33 |
| D. | Nu=0.4 \((\frac{Re}{\in})^\frac{2}{3}\) Pr0.33 |
| Answer» B. Nu=1.6×10-2 \((\frac{Re}{\in})^{1.3} Pr^\frac{2}{3}\) | |