the sinking of tail shaft
the clearance of stern bearing
the total flexure of both end bearing
main engine crankshaft deflection
第1题：
Personnel who are moving or handling material aboard ship should NOT follow which of the listed practices?
A.Signaling that all personnel are clear before lifting or lowering material
B.Examining material for sharp edges or protruding points before handling
C.Closing, tagging or securing valves that permit entrance of steam, water, or air into a fitting or other equipment
D.Throwing materials from high places to the deck
第2题：
Coast Guard approved buoyant work vests ______．
A.may be substituted for 10 percent of the required life preservers
B.should be stowed adjacent to lifeboats and emergency stations
C.may be used by boat crews and line handlers during lifeboat drills
D.should be used when carrying out duties near a weather deck's edge
第3题：
Repair of vital machinery and services on a ship should be accomplished ______.
A.after control of fire, flooding, and structural repairs
B.immediately
C.after control of fire, but before control of flooding
D.after stability is restored
第4题：
Why should you soak an anchor ________．
A.It can prevent the anchor from slipping during pretensioning
B.It will lubricate all the moving parts of a stock anchor
C.It will increase the maximum breaking strength of the anchor chain
D.It will make it easier to disassemble the anchor for repair
第5题：
You are loading a cargo of bagged coffee beans．To keep cargo leakage from being contaminated by the ship's structure，you should ______．
A.use separation cloths between the deck and cargo
B.place the cargo on a layer of spaced dunnage
C.hose down the deck before loading the cargo
D.use bag-on-bag stowage
第6题：
During the dock repair,______should be measured firstly before tail shaft drawn out.
A.the sinking of tail shaft
B.the clearance of stern bearing
C.the total flexure of shaft
D.main engine crankshaft deflection
第7题：
Which operating procedure（s）should be adhered to on a Ro-Ro vessel ________．
A.One officer assigned to oversee the initial loading and lashing
B.All lashings should be completed before leaving port
C.Periodic inspection and retensioning of lashings during the voyage
D.All of the above
第8题：
View the Exhibit to examine the error during the database startup.You open an RMAN session for the database instance. To repair the failure, you executed the following as the first command in the RMAN session:RMAN> REPAIR FAILURE;Which statement describes the consequence of the command?（）
A. The command performs the recovery and closes the failures.
B. The command only displays the advice and the RMAN script required for repair.
C. The command produces an error because the ADVISE FAILURE command has not been executed before the REPAIR FAILURE command.
D. The command executes the RMAN script to repair the failure and removes the entry from the Automatic Diagnostic Repository (ADR).
第9题：
Which statement is TRUE concerning insulating flanges ________．
A.They should be inspected and tested periodically to ensure that the insulation is clean and in good condition
B.Switching off a cathodic protection system may be substituted for using an insulating flange
C.The measured resistance value after installation should be less than 1，000 ohms
D.After the insulating flange is installed，hot work may be performed on deck
第10题：
What should be enabled before any user views can be created during role-based CLI configuration ？（）