A.Safe working load
B.Ship's working lift
C.Starboard wing lift
D.Stress，weight，load
您可能感興趣的試卷
你可能感興趣的試題
A.crow bar
B.device to force a water tight door against the frame
C.heavy steel beam
D.wedge
A.that the fuel valve is open
B.if the air supply system is open
C.if the water sprinkler system is open
D.if the limit switch is on
A.a defective ignition system
B.low lube oil level
C.weak valve springs
D.too heavy a load
A.once each crankshaft revolution
B.twice each crankshaft revolution
C.every other crankshaft revolution
D.every fourth stroke
A.They are less expensive
B.They are smaller for equivalent pumping ability
C.They pump more cargo in less time
D.All of the above
最新試題
If a gasoline engine turns over freely but will not start，the cause is generally（）.
In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.
The portable radio apparatus means（）.
The series of valves used to control the return flow in well control operations is called the（）.
The purpose of a bilge well is to（）.
Cargo pump relief valves are piped to the（）.
As oil pipe line connections were broken，（）quantity of oil was caused to spill onto the wharf and into the dock water.
Anchors are prevented from running out when secured by the（）.
The connected joints of pipe，usually made of three joints of pipe approximately 90 feet long，racked in the derrick when making a trip are called a（）.
The C02 flooding system is actuated by a sequence of steps which are（）.