Section 2(r) in The Merchant Shipping (Cargo Ship Construction And Survey) Rules, 1974
(r)"steering gear power unit" means :-(i)in the case of electro-hydraulic steering gear, the electric motor, and its associated electrical equipment; or(ii)in the case of electro-hydraulic steering gear, the electric motor, and its associated electrical equipment and connected pump;(iii)in the case of steam-hydraulic or pneumatic hydraulic steering gear, the driving engine and connected pump;
