In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause()
A、molecular fluid vibration
B、energy losses
C、wide pressure variations
D、mechanical damage to control valves
A、molecular fluid vibration
B、energy losses
C、wide pressure variations
D、mechanical damage to control valves
A、the manager of the shipping company B、the master of the ship C、the designated person on board ship D、the designated person ashore
A、A.the chief engineer B、B.the designated engineer from shipyard C、C.the designated duty officer in charge of the engineering watch D、D.the designated surveyor from classification society
A、A.Tight coupling B、B.Low cohesion C、C.High cohesion D、D.Loose coupling E、E.Weak encapsulation F、F.Strong encapsulation
A、A.the prevention of collision B、B.the promotion of the traffic flow C、C.the complying of port regulation D、D.the development of navigational technique
A、up to 10Gbps of bandwidth at the access level B、redundant servers at the access level C、modular block design at the access level D、high port densities at the access level
A、up to 10Gbps of bandwidth at the access level B、redundant servers at the access level C、modular block design at the access level D、high port densities at the access level
A、angle that the propeller makes with a free stream of water B、angle that the propeller makes with the surface of the water C、number of feet per revolution the propeller is designed to advance in still water without slip D、positive pressure resulting from the difference of the forces on both sides of the moving propeller in still water without slip