Hydraulic Machinery
10 Questions
| Attempts: 116
10 questions to test your knowledge in Hydraulic Machinery
Questions and Answers
- 1.
In hydroelectric power plant, it is the concrete structure that encloses the reservoir.
- A.
Penstock
- B.
Silt sluice
- C.
Dam
- D.
Tail race
Correct Answer
C. Dam -
- 2.
In hydropower system, a turbine wheel converting the kinetic energy of a striking water into movement which causes the turbine buckets or blades to rotate.
- A.
Impulse
- B.
Reaction
- C.
Kaplan
- D.
Francis
Correct Answer
A. Impulse -
- 3.
Using affinity laws on pumps, if the diameter will be doubled what would happen to the new head developed? H1 = 2 m.
- A.
Head will increase at factor of 6
- B.
Head will increase at factor of 4
- C.
Power will increase at factor of 6
- D.
Head will be doubled
Correct Answer
B. Head will increase at factor of 4 -
- 4.
Using affinity laws on pumps, if the diameter will be doubled what would happen to the flow rate? Q1 = 3 cu.m per sec
- A.
Head will increase at factor of 6
- B.
Capacity will increase at factor of 6
- C.
Power will increase at factor of 6
- D.
Capacity will be doubled
Correct Answer
B. Capacity will increase at factor of 6 -
- 5.
For an 1800 rpm pump, find the impeller diameter necessary to develop a head of 200 ft.
- A.
1.31 ft
- B.
2 ft
- C.
14.3 in
- D.
14.8 in
Correct Answer
C. 14.3 in -
- 6.
Determine the number of stages needed for a centrifugal pump if it is used to deliver 200 gpm of fluid at pump power of 5 hp. Each impeller develops a head of 30 ft.
- A.
4.25
- B.
5
- C.
6
- D.
7
Correct Answer
B. 5 -
- 7.
A machine used to transport liquid from the point of low energy level to a point of high energy level.
- A.
Compressor
- B.
Pump
- C.
Water turbine
- D.
Blower
Correct Answer
B. Pump -
- 8.
Reynolds number for a laminar flow of fluid.
- A.
< 4000
- B.
> 2000
- C.
< 2000
- D.
= 2000
Correct Answer
C. < 2000 -
- 9.
Substances capable of flowing and which conform to the shape of their containers.
- A.
Pure substance
- B.
Liquids
- C.
Fluids
- D.
Air
Correct Answer
C. Fluids -
- 10.
Type of flow of fluid in which Re = 2150.
- A.
Laminar flow
- B.
Turbulent flow
- C.
Critical flow
- D.
Transitional flow
Correct Answer
C. Critical flow -
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Apr 12, 2012Quiz Edited by
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Apr 07, 2012Quiz Created by
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