When a davit-launched raft is lowered from a ship，upon becoming waterborne，the raft is released by（）.
1、A tide is called diurnal when（）.
A tide is called diurnal when（）.Aonly one high and one low water occur during a lunar dayBthe high tide is higher and the low tide is lower than usualCthe high tide and low tide are exactly six hours apartDtwo high tides occur during a lunar day
2、The lower section of a piston is calle
The lower section of a piston is called the （）.AlandBskirtCcrownDplate
3、A common occurrence when a vessel is r
A common occurrence when a vessel is running into shallow water is that（）.Athe wake is less pronouncedBthe vessel is more responsive to the rudderCsquat will cause a decrease in bottom clearance and an increase in draftDAll of the above
4、When one cylinder has a lower compress
When one cylinder has a lower compression pressure and higher exhaust gas temperature than any of the other engine cylinders, which of the con...
5、When a router is connected to a Frame
When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined（）。AIt is sup...
6、When a vessel is aground,（）.
When a vessel is aground,（）.Ashe is underwayBshe is not underwayCwhether she is underway cannot be determinedDshe might be or not be underway