Mechanical Engineering - Hydraulic Machines - Discussion

Discussion Forum : Hydraulic Machines - Section 2 (Q.No. 38)
38.
The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship, will be maximum when the relative velocity of the jet and ship is equal to twice the velocity of the ship.
Yes
No
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Vihan said:   4 years ago
Also we can say ship absolute velocity is u=jet absolute velocity v,this is the condition for maximum efficiency. so
Relative velocity V+u=2u, 2v=2u,v=u so answer is correct.

Vivek Tanaji Sagar said:   6 years ago
Since the maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of the ship is 50%.

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