Engineering :: Fluid Mechanics and Hydraulic Machines
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181. |
A Founeyron turbine is |
A. |
Outward flow reaction turbine |
B. |
Inward flow reaction turbine |
C. |
Outward flow impulse turbine |
D. |
Inward flow impulse turbine |
E. |
None of the above |
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Answer: Option A
Explanation:
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182. |
Which type of pump is different from others? |
A. |
Centrifugal pump |
B. |
Lobe pump |
C. |
Gear pump |
D. |
Sliding vane pump |
E. |
Fuel pump for diesel engine |
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Answer: Option E
Explanation:
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183. |
Which type of turbine is different from others? |
A. |
Pelton wheel |
B. |
Banki turbine |
C. |
Girard turbine |
D. |
Jonval turbine |
E. |
Kaplan turbine |
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Answer: Option E
Explanation:
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184. |
If the absolute pressure at a point in a hydraulic system is less than atmospheric pressure, the point is said to possess |
A. |
Positive head |
B. |
Negative head |
C. |
Absolute positive head |
D. |
Gross positive head |
E. |
Manometric head |
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Answer: Option B
Explanation:
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185. |
In a turbine installation gross head is defined as |
A. |
The difference of level between the head race and the tail race |
B. |
The difference of level between reservoir and downstream |
C. |
The difference of head between axis of turbine to discharge stream level |
D. |
The head actually used in developing power |
E. |
None of the above |
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Answer: Option A
Explanation:
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186. |
Relative velocity is |
A. |
The difference between two velocities |
B. |
The difference between the higher velocity and average velocity |
C. |
Average velocity |
D. |
Sum of two velocities |
E. |
Vector difference of two velocities |
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Answer: Option E
Explanation:
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187. |
Which is higher head |
A. |
33 inch Hg |
B. |
31.6 ft water |
C. |
1.013 kg/cm2 |
D. |
75.6 cm of Hg |
E. |
14.1 psi |
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Answer: Option A
Explanation:
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188. |
If the specific speed of a turbine is 6 then the turbine should be |
A. |
Francis |
B. |
Kaplan |
C. |
Pelton wheel |
D. |
Thomson |
E. |
Fourneyron |
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Answer: Option C
Explanation:
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189. |
In working out the reltion for the specific speed, the assumption is made that |
A. |
All pumps are similr |
B. |
All pumps of a given type are similar |
C. |
All pumps of a given type are geometrically similar |
D. |
All pumps are hydraulically similar |
E. |
All pumps have similar ratios in all dimensions |
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Answer: Option C
Explanation:
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190. |
Specific speed for reaction turbine ranges from |
A. |
3 - 710 |
B. |
10 - 110 |
C. |
125 - 180 |
D. |
200 - 300 |
E. |
More than 300 |
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Answer: Option B
Explanation:
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