The deck control valve to be（）after being repaired.

A . weld pad eyes on deck in proper position to secure the cargo B . strengthen the main deck by placing pillars underneath it in the tween-decks C . distribute the weight of the cargo by placing fore-and-aft planks on the main deck D . package the cargo in wooden crates so it will not damage the deck

A . open and individual tank valves open B . open and the individual tank valves closed C . closed and the individual tank valves closed D . closed and the individual tank valves ope

A . valve assembly B . standpipe manifold C . accumulator manifold D . choke manifold

A . The reservoir would become vapor bound B . The valve would be placed in hydraulic lock C . The spring loaded relief ports would open D . The buffering chambers would be unable to functio

A、Relief valves B、Safety valves C、Check valves D、Reducing valves

A . a pressure reducing valve B . a pilot valve C . an operating piston D . downstream pressure

A . superheat of the gas leaving the compressor B . back pressure in the evaporator C . temperature of the icebox D . superheat of the gas leaving the evaporator

A . open and individual tank valves open B . open and the individual tank valves closed C . closed and the individual tank valves closed D . closed and the individual tank valves ope

A . neutral B . end C . opening D . closure

A . Pressure-reducing valve B . Unloading valve C . Counterbalance valve D . Pressure-relief valve

A . compensate for major leaks in the system B . maintain the original fluid viscosity C . allow for changes in pressure and temperature within the system D . assure constant fluid temperature

A . release CO to the protected space B . secure all mechanical ventilation in the protected space C . sound the rig's general alarm signal for a fire D . sound an alarm in the ballast control room

A . frames B . hull C . stringers D . plate

A . evaporator pressure decrease B . evaporator coil over-feed C . evaporator capacity increase D . expansion valve diaphragm rupture

A . double bottom fuel oil tank temperature B . heater supply steam flow C . pressure of the fuel supplied to the burners D . attemperator steam flow in the heater discharge circuit

A . moved and fitting again B . removed and refitted C . reproduced and put on again D . return and attached agai

A . Electrical cut off switch B . A fusible link C . Manual cut off switch D . A water spray actuator

A . An air compressor B . An indicator cock C . An air distributor D . A safety valve

A . react with insufficient speed droop B . fail to react to small speed changes C . have excessive sensitivity to small speed changes D . remain in the neutral positio

A . it is impractical to locate them outside B . there is also a control valve outside C . the CO cylinders are also in the space D . an automatic heat-sensing trip is installed

A . the air start valve timing gears and rods B . a cylinder check valve C . individual cams and valve gear D . an air manifold poppet valve

A . damage from crane operations B . being used for wash down purposes C . accidental diversion of flow to wrong location D . freezing

A . tighted formally B . shut tightly C . combined properly D . closed suitably

A . posted with instruction on the operation of the systm B . ventilated and equipped with explosion-proof switches C . painted with red and black diagonal stripes D . equipped with a battery powered source of emergency lighting