If the ratio of corresponding velocities at corresponding points are equal, then

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Mechanical Engineering ‣ Hydraulic Machines Comments

Question
If the ratio of corresponding velocities at corresponding points are equal, then the model and the prototype are said to have dynamic similarity.
Options
A. Correct
B. Incorrect

Correct Answer

Incorrect

Hydraulic Machines problems

Search Results

1. A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used?
Options
A. Pelton wheel with one nozzle
B. Pelton wheel with two or more nozzles
C. Kaplan turbine
D. Francis turbine

2. The undershot water wheels are those in which
Options
A. the wheel runs entirely by the weight of water
B. the wheel runs entirely by the impulse of water
C. the wheel runs partly by the weight of water and partly by the impulse of water
D. none of the above

4. The function of guide vanes in a reaction turbine is to
Options
A. allow the water to enter the runner without shock
B. allow the water to flow over them, without forming eddies
C. allow the required quantity of water to enter the turbine
D. all of the above

6. The jet ratio is defined as the ratio of the
Options
A. diameter of jet to the diameter of Pelton wheel
B. velocity of jet to the velocity of Pelton wheel
C. diameter of Pelton wheel to the diameter of jet
D. velocity of Pelton wheel to the velocity of jet

9. In an outward flow reaction turbine
Options
A. the water flows parallel to the axis of the wheel
B. the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
C. the water enters the wheel at the outer periphery and then flows towards the centre of the wheel
D. the flow of water is partly radial and partly axial

Comments

More in Mechanical Engineering: