A screw pump belongs to () according to its working principle.
The amount of fluid delivered by a screw pump can be regulated by ().
When start a screw pump, the by pass valve should be ().
0n a single-screw vessel the stern frame().
On a single-screw vessel the stern frame().
While moving ahead,a twin-screw ship has an advantage over a single-screw ship because ().
In twin-screw engine installations while going ahead,maneuvering qualities are most effective when the tops of the propeller blades both turn().
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the().
How does the effect known as bank suction act on a single-screw vessel proceeding along a narrow channel?().
A technician is trying to retrieve a screw that fell inside a case and is just out of reach. Which of the following is the BEST procedure to retrieve the screw?()