| 21. | The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides 'x' & 'y' is given by
 |
| a. | A |
| b. | B |
| c. | C |
| d. | D |
| View Answer Report Discuss 50-50! |
|
Answer: (a).A
|
| 22. | Various efficiencies of a centrifugal pump are related as (where, ηₘ = mechanical efficiency ηᵥ = volumetric efficiency. ηₘₐ = manometric efficiency ηₒ = overall efficiency) |
| a. | ηₘₐ x ηₘ x ηᵥ = ηₒ |
| b. | ηₘ = ηᵥ . ηₘₐ |
| c. | ηₘₐ = ηₘ x ηᵥ |
| d. | ηᵥ = ηₘ x ηₘₐ |
| View Answer Report Discuss 50-50! |
|
Answer: (b).ηₘ = ηᵥ . ηₘₐ
|
| 23. | Fanning equation is given by below equation. It is applicable to __________ region flow.
 |
| a. | transition |
| b. | laminar |
| c. | turbulent |
| d. | both (b) and (c) |
| View Answer Report Discuss 50-50! |
|
Answer: (d).both (b) and (c)
|
| 24. | The head loss due to sudden expansion is
 |
| a. | A |
| b. | B |
| c. | C |
| d. | D |
| View Answer Report Discuss 50-50! |
|
Answer: (b).B
|
| 25. | Pressure drop for turbulent fluid flow through a circular pipe is given by
 |
| a. | A |
| b. | B |
| c. | C |
| d. | D |
| View Answer Report Discuss 50-50! |
|
Answer: (c).C
|