海船船员考试
单选题Before dismantling the pipe, would you （）the oil retained in the hose with （）?A flash；fresh airB wash；fresh waterC flush；compressed airD rush；diesel oil
题目
flash；fresh air
wash；fresh water
flush；compressed air
rush；diesel oil
相似问题和答案
第1题：
______get your engine ready before six tomorrow morning．
A.You’d better
B.You would better
C.You at least
D.You at most
你最好明天早上六点前备妥主机。
第2题：
B.is
C.had been
D.will be
考点
虚拟语气
第3题：
A.should
B.have to
C.must
D.would
第4题：
In the parameter file of your production database， the CONTROL_FILE_RECORD_KEEP_TIME parameter is set to 31. What would be the impact of this setting on the backup that is being performed by using Recovery Manager （RMAN）？（）
- A、 The backup would be retained on the media for 31 days.
- B、 The backup would be maintained in the recovery catalog for 31 days.
- C、 The backup metadata would be retained in the control file for 31 days.
- D、 The backup metadata would be maintained in the recovery catalog for 31 days.
- E、 Automatic backups of the control file will be retained in the flash recovery area for 31 days.
正确答案:C
第5题：
You work as a database administrator for Certkiller .com. In the Certkiller PRODUCTION database you have granted RESUMABLE system privilege to the CONNECT role.Resumablespace operation has been enabled for all user session. You want users NOT to be aware of any kind of space-related problems while performing transactions. Instead， you want the problem to be resolved by a database trigger automatically. Which combination of triggering time and event would you use to achieve this objective？（）
- A、AFTER CREATE
- B、AFTER SUSPEND
- C、BEFORE CREATE
- D、AFTER TRUNCATE
- E、BEFORE SUSPEND
- F、AFTER INSERT OR DELETE OR DELETE
- G、BEFORE INSERT OR DELETE OR DELETE
正确答案:B
第6题：
As oil pipe line connections were broken, _____ quantity of oil was caused to spill onto the wharf and into the dock water.
A.a not knowing
B.an unknowing
C.an unknown
D.a not know
一个油管线的链接一旦损坏，不明数量的油漏到码头的水里。
第7题：
We would appreciate it very much if you could make arrangements before September 15 to charter a ship（）the terms mentioned in your yesterday’s telex.
- A、according
- B、as
- C、on
- D、at
正确答案:C
第8题：
According to this passage, if the cylinder non-return valve were not leaky
A.an explosion would not be caused
B.there still would be a danger of explosion
C.oil would not deposit in the air pipe
D.pipe lines would not have to be drained
第9题：
You are developing a tax report for the payroll application. You created a before parameter form report trigger to create three temporary tables to store text that are need while the report is executed. Which report trigger would you use to delete these temporary tables?（）
- A、Before parameter form.
- B、After parameter form.
- C、Before report.
- D、After report.
正确答案:D
第10题：
check the pyrometer readings
check the crankcase oil level
check the fuel oil strainers
clean the fuel system