While working in the engine room, you hear seven short blasts followed by one long blast on the ships whistle, supplemented by the same signal on the general alarm bellsYou should （）.

A、A.start the fire pump to charge the fire main

B、B.standby the main console and await orders from the engineer on watch

C、C.go to your fire station

D、D.go to your lifeboat station

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更多“While working in the engine room, you hear seven short blasts followed by one long blast on the ships whistle, supplemented by the same signal on the general alarm bellsYou should （）.”相关的问题

第1题

[单选题] What protection method is used in 4F BLSR networks?（）

A、Each fiber has half of its SONET capacity reserved for protection. B、Two fibers in the span carry working traffic, while the other two fibers in the span are reserved for protection. C、The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality. D、The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.

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第2题

[单选题] Each life preserver must be readily accessible to the person for whom it is intended while he or she is（）.

A、at work，only B、in his or her berthing area，only C、BOTH at work and in his or her berthing area D、None of the above

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第3题

[] Each life preserver must be readily accessible to the person for whom it is intended while he or she is（）.

A、A.at work B、B.in his or her berthing area C、C.BOTH at work and in his or her berthing area D、D.None of the above are correct

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第4题

[] While you are working in a space，the fixed CO2 system is accidentally activated．You should（）.

A、A.Secure the applicators to preserve the charge in the cylinders B、B.Continue with your work as there is nothing you can do to stop the flow of CO2 C、C.Retreat to fresh air and ventilate the compartment before returning D、D.Make sure all doors and vents are secured

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第5题

[单选题] What is the difference between 1+1 and 1：1 protection switching？（）

A、 1+1 is based on APS， while 1：1 is based on IPS. B、 1：1 is used in SNCP switching， while 1+1 is used in MS-SPRing switching. C、 1+1 sends signals on Working and Protect paths， while 1：1 sends signals only on Working path. D、 1+1 sends signals on Working path ONLY， while 1：1 sends signals on both Working and Protect paths.

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第6题

[单选题] Exhibit: Examine the data in the EMPLOYEES table. Examine the subquery: SELECT last_name FROM employees WHERE salary IN (SELECT MAX(salary) FROM employees GROUP BY department_id); Which statement is true?（）

A、The SELECT statement is syntactically accurate. B、The SELECT statement does not work because there is no HAVING clause. C、The SELECT statement does not work because the column specified in the GROUP BY clause is not in the SELECT list. D、The SELECT statement does not work because the GROUP BY clause should be in the main query and not in the subquery.