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
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a. | A |
b. | B |
c. | C |
d. | D |
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Answer: (a).A
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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 |
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Answer: (b).ηₘ = ηᵥ . ηₘₐ
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23. | Fanning equation is given by below equation. It is applicable to __________ region flow.
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a. | transition |
b. | laminar |
c. | turbulent |
d. | both (b) and (c) |
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Answer: (d).both (b) and (c)
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24. | The head loss due to sudden expansion is
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a. | A |
b. | B |
c. | C |
d. | D |
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Answer: (b).B
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25. | Pressure drop for turbulent fluid flow through a circular pipe is given by
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a. | A |
b. | B |
c. | C |
d. | D |
View Answer Report Discuss 50-50! |
Answer: (c).C
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