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（）of the following conditions will cause a vessel’s bottom to be subjected to tension stresses.
A . Concentration of weight aft
B . Concentration of weight forward
C . Concentration of weight amidships
D . Concentration of weight at both ends of the vessel
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Cable tension for catenary calculations is taken at the（）.
A . chain locker
B . fairlead
C . anchor
D . contact point of chain with seabed
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Examine the following command: CREATE TABLE (prod_id number(4), Prod_name varchar2 (20), Category_id number(30), Quantity_on_hand number (3) INVISIBLE); Which three statements are true about using an invisible column in the PRODUCTS table?（）
A . The %ROWTYPE attribute declarations in PL/SQL to access a row will not display the invisible column in the output.
B . The DESCRIBE commands in SQL *Plus will not display the invisible column in the output.
C . Referential integrity constraint cannot be set on the invisible column.
D . The invisible column cannot be made visible and can only be marked as unused.
E . A primary key constraint can be added on the invisible column.
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You want to migrate your existing nonASM files to ASM files for the database PROD. Which method or command would you use to accomplish this task？（）
A . the CONVERT command of RMAN
B . Data Pump Export and Import into the same database
C . conventional export and import into the same database
D . the BACKUP DATABASE and RESTORE DATABASE commands of RMAN
E . the BACKUP AS COPY DATABASE and SWITCH DATABASE TO COPY command of RMAN
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During storm conditions on a ship，the mooring tensions should be adjusted so that（）.
A . all mooring lines have a different tension
B . the leeward lines have higher tension than the windward lines
C . the maximum tension of the most heavily loaded line does not exceed the safe working load
D . all horizontal tension forces on the windward lines are no greater than the vertical tension force
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With a given load on the cargo hook，tension in a single span topping lift（）.
A . increases as the boom's angle to the horizontal increases
B . is at a maximum when the boom is at a 45° angle to the horizontal
C . increases as the boom's angle to the horizontal decreases
D . decreases as the boom's angle to the horizontal decrease
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Before the final examination, some students have shown（）of tension. They even have trouble in sleeping.
A . anxiety
B . marks
C . signs
D . remark
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You want to convert your existing non-ASM files to ASM files for the database PROD. Which method or command would you use to accomplish this task？（）
A . Data Pump Export and Import
B . conventional export and import
C . the CONVERT command of RMAN
D . the BACKUP AS COPY. command of RMAN
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Sometimes the bill of lading refers to the loading marks inscribed on the goods，and sometimes there（）a statement as to their quality.
A . has
B . provides
C . is
D . supplie
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In the constant-tension mooring, the mooring lines holding the ship to the pier will maintain a constant tension even with changes in tide or ship’s draft, （）.
A . without the necessity of manually adjusting the lines
B . without the necessity of automatically adjusting the lines
C . with the necessity of manually adjusting the lines
D . with the un-necessity of automatically adjusting the line
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During storm conditions on a vessel，the mooring tensions should be adjusted so that（）.
A . all mooring lines have a different tension
B . the leeward lines have higher tension than the windward lines
C . the maximum tension of the most heavily loaded line does not exceed the safe working load
D . all horizontal tension forces on the windward lines are no greater than the vertical tension force
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You are maintaining the PROD database of NetFx Corporation. You set the value of the SQL_TRACE parameter to TRUE. What will be the impact of this setting？（）
A . The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the USER_DUMP_DEST directory.
B . The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the USER_DUMP_DEST directory.
C . The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the BACKGROUND_DUMP_DEST directory.
D . The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the BACKGROUND_DUMP_DEST directory.
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You Execute the Following command to create a password file in the database server: $ orapwd file = ‘+DATA/PROD/orapwprod entries = 5 ignorecase = N format = 12’ Which two statements are true about the password file?（）
A . It records the usernames and passwords of users when granted the DBA role.
B . It contains the usernames and passwords of users for whom auditing is enabled.
C . Is used by Oracle to authenticate users for remote database administration.
D . It records the usernames and passwords of all users when they are added to the OSDBA or OSOPER operating system groups.
E . It supports the SYSBACKUP, SYSDG, and SYSKM system privileges.
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Evaluate the CREATE TABLE statement： CREATE TABLE products （product_id NUMBER （6） CONSTRAINT prod_id_pk PRIMARY KEY， product_name VARCHAR2 （15））； Which statement is true regarding the PROD_ID_PK constraint？（）
A . It would be created only if a unique index is manually created first.
B . It would be created and would use an automatically created unique index.
C . It would be created and would use an automatically created nonunique index.
D . It would be created and remains in a disabled state because no index is specified in the command.
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To prevent the riser system from buckling under its own weight，upward tension is provided by the（）.
A . riser stabilizers
B . guideline tensioning system
C . riser tensioning system
D . guideline stabilizer
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In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.
A、cranes
B、windlass
C、capstans
D、mooring winches
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When the anchor is brought to and holding，the horizontal component of anchor cable tensions should equal the（）.
A . displacement tonnage
B . weight forces
C . buoyancy forces
D . environmental force
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If we sometimes lie,the positive effect is ?()
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Sometimes the controlling idea implied in the thesis statement.
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The tension was naturally high for a game with so much _______ .
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The combined effects of those trends and the political tensions point to the breakdown of governments and societies.(2016,6)
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What’s the difference of pronouncing between /3:/ and /ə/?/ə/ is made similarly to /3:/, but with less tension.
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Mark sometimes （） to the cinema with his sister.
A．go
B．gos
C．goes
D．going
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Political tensions may___the likelihood of a nuclear warA.decrease
B.increase
C.lead to
D.increasing
