List of top Naval Architecture and Ocean Engineering Questions

Consider the wave elevation spectrum $S_{\eta\eta}(\omega)$ as shown in the figure. Then, the significant wave height is ________________ m.
Assume that a ship has length \(L = 200 \, \text{m}\) and operates at a design speed \(U = 12 \, \text{m/s}\). If in a turning circle maneuver the ship exhibits a steady turning diameter of \(6L\), then the yaw rate of the ship is ________________ rad/s (correct to two decimal places).
For a rigid vessel at sea, which of the following statements are TRUE?
Which of the following are TRUE for pressure, temperature and density of a thermodynamic system?
Let \( f(x,y,z)=xy+yz+xz \). If a point \( (0,0,\lambda) \) lies on the tangent plane to the surface \( f(x,y,z)=3 \) at the point \( (1,1,1) \), then the value of \( \lambda \) is __________.
In a diesel engine, the ignition is initiated by the:
Consider a rectangular box barge of length 80 m, breadth 20 m and depth 15 m floating at an even draught of 10 m. Assume that the heave added mass of the vessel is equal to its mass displacement and the acceleration due to gravity is 9.81 m/s\(^2\). The heave natural period of the vessel lies in between ________________ s.
The margin line used for the floodable length calculation of a ship is:
A 1:20 scaled model of a surface ship is tested in a towing tank. The model is towed at 3 m/s and drag force measured is 10 N. The velocity of the prototype and the drag force acting on the prototype, respectively, are ________________ m/s and ________________ kN.