Question

The inlet orifices are at what angle with the motion of the ship?

(a) 0

(b) 30

(c) 60

(d) 90

The question was asked in an interview for job.

My doubt stems from Force Exerted by a Jet on a Stationary Curved Plate in section Impact of Jets and Jet Propulsion of Fluid Mechanics

Answer 1

The correct choice is (d) 90

The explanation: The inlet orifices are at right angles with respect to the motion of the ship. The main purpose of the inlet orifice is to take water from the sea by the pump. Thus, the correct angle at which it moves is 90 degress.