Safety shackles are fitted with（）.

A . clamps B . clasps C . dogs D . latche

A . to provide for safe practices in ship operation and a safe working environment B . to establish safeguards against all identified risks C . to continuously improve safety management skills of personnel, including preparing for emergencies D . all the above

A . fire-tubes B . furnaces C . down-comers D . soot-blower

A . by day or at night B . almost round the clock C . somewhat and sometime D . from sunrise and sunset

A . cutting power off the engine B . increasing the fuel pump setting C . braking the crankshaft D . stabilizing the ship speed

A . in B . on C . out D . with

A . Connect the shackle to the bosun's chair with a hook B . Never allow the shackle pin to ride on the stay C . Run the gantline through the shackle and then make fast to the bosun's chair D . Tie the bitter end of the gantline to the shackle before shackling it to the bosun's chair

A . place for people to lie down B . means for rigging the sail C . place for rowers to brace their feet D . suitable means for water to drain below the footing

A . oil from flowing out of the tank vent B . air from entering the tank vent C . vapors from leaving the tank vent D . flames on deck from entering the tank vent

A . increase discharge pressure B . increase suction vacuum C . develop pulsation flow D . keep a steady rate of flow

A . secure the lifeboat in the davits when in the stowed position B . bring the lifeboat close along the rail in the embarkation position C . give the occupants a safety line when the boat is being lowered from the embarkation level D . reduce the swinging of the lifeboat at the embarkation level

A . U-Type and posilok shackles B . C-Type and wedge shackles C . D-Type and bow shackles D . wedge and kenter shackle

A . using a rotary grinder with an installed shield B . letting go the anchor C . handling wire rope or natural fiber line D . painting with a spray gu

A . stackers B . twistlock C . bridge fittings D . containment boom

A . east iron firings B . mild steel fittings C . small fittings D . large fitting

A . Floor-ceiling B . Battens C . Covers D . Hard-wood board

A . pressure vacuum relief valves B . excess flow valves C . safety relief valves D . flame scree

A . with the pin of the shackle riding on the stay B . with the pin of the shackle through the chair's bridle eye C . with a hook attaching the chair to the riding shackle D . connected to a second shackle on the chair

A . function when the rudder is amidships B . relieve excess whip pressure from the hydraulic oil system C . protect the piping assembly from external rudder shock D . relieve excessive telemotor pressure

A . assist in drydock alignment B . improve the vessel's stability C . protect the vessel from slamming against piers D . reduce the rolling of the vessel

A．pause B．halt C．repel D．keep