Question

The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be

(a) to raise the bow and stern

(b) to lower the bow and stern

(c) to raise the bow and lower the stern

(d) to raise the stern and lower the bow

The question was asked during an interview.

This interesting question is from Gyroscopic Couple topic in division Gyroscopic Couple and Precessional Motion of Machine Dynamics

Answer 1

Correct choice is (c) to raise the bow and lower the stern

The explanation is: The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a left turn. The effect of gyroscopic couple acting on it will be to raise the bow and lower the stern.

The rotor of a ship rotates in clockwise direction when viewed from stern and the ship takes a right turn. The effect of gyroscopic couple acting on it will be to raise the stern and lower the bow.