单项选择题
A.box temperature solenoid valve will close B.expansion valve will close C.compressor will shutdown D.king valve will open
Accidental flooding of the engine room bilges by the bi...
单项选择题Accidental flooding of the engine room bilges by the bilge main is prevented by （）.
A.stop-check valves installed in the bilge manifolds B.using a positive displacement reciprocating bilge pump C.installing eductors in all bilge rose boxes D.installing a swing check before each bilge valve
Zinc rods are installed in the refrigeration system （）....
单项选择题Zinc rods are installed in the refrigeration system （）.
A.liquid strainer B.liquid receiver C.saltwater condenser D.evaporator
（）is a series of trials done at sea to determine whethe...
单项选择题（）is a series of trials done at sea to determine whether the ship has met the specifications of design, modification, or repair.
A.SEA WORTHINESS B.SEA TRIALS C.TRIAL-AND-ERROR D.DOCK TRIALS
