Geometric similarity is said to exist between the model and the prototype, if both of them Have identical velocities Have identical forces Are identical in shape, but differ only in size Are equal in size and shape TRUE ANSWER : ? YOUR ANSWER : ?
The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number) 16/RN 1/RN 4/RN 64/RN TRUE ANSWER : ? YOUR ANSWER : ?
The conditions for the stable equilibrium of a floating body are the meta-center should lie above the center of gravity all the above are correct the center of buoyancy and the center of gravity must lie on the same vertical line a righting couple should be formed TRUE ANSWER : ? YOUR ANSWER : ?
If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is 1 43924 4 2 TRUE ANSWER : ? YOUR ANSWER : ?
The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is 5.2 sec 14.1 sec 4.1 sec 10.4 sec TRUE ANSWER : ? YOUR ANSWER : ?
One liter of water occupies a volume of 100 cm3 250 cm3 1000 cm3 500 cm3 TRUE ANSWER : ? YOUR ANSWER : ?
Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is less than d between 1.5 d and 2d greater than 2d between d and 1.5 d TRUE ANSWER : ? YOUR ANSWER : ?
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be Horizontal Steep Nearly horizontal First rise and then fall TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea rotameter Venturimeter pitot tube hot wire anemometer TRUE ANSWER : ? YOUR ANSWER : ?
The value of mass density in kgsecVm4 for water at 0°C is 1 101.9 1000 100 TRUE ANSWER : ? YOUR ANSWER : ?