In order to prevent galvanic corrosion，an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?（）..

第1题

[单选题] It is sometimes necessary to moor bow and stern to two mooring buoys in order to（）.

A、avoid any swing in a restricted space B、prevent to touch with other vessels C、make a convenience of cargo discharging

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第2题

[] While troubleshooting a network outage, you discover that an employee brought a switch from home into the office to connect additional equipment to the network. In order to increase his speed, he connected this switch to both network ports in his office, resulting in a bridge loop. Which of these can you implement to prevent future occurrences of this issue?（） While troubleshooting a network outage, you discover that an employee brought a switch from home into the office to connect additional equipment to the network. In order to increase his speed, he connected this switch to both network ports in his office, resulting in a bridge loop. Which of these can you implement to prevent future occurrences of this issue?（）

A、A.RSTP B、B.root guard C、C.BPDU guard D、D.GLBP

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第3题

[单选题] After a normal, or safety shutdown, automatic combustion control systems for an auxiliary boiler are designed to prevent the immediate refiring of a burner in order for the （）.

A、furnace to be re-purged B、electric charge to buildup in the igniter C、fuel pump to restart D、dram level to stabilize

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第4题

[单选题] After a normal, or safety shutdown, automatic combustion control systems for an auxiliary boiler are designed to prevent the immediate re-firing of a burner in order for the （）.

A、furnace to be re-purged B、electric charge to buildup in the igniter C、fuel pump to restart D、drum level to stabilize

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第5题

[单选题] The starting air system usually has （） to prevent starting if anything is not in order.

A、drain cocks B、vent valves C、counteracts D、interlocks

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第6题

[] It is sometimes necessary to moor bow and stern to two mooring buoys in order to（）.

A、A.avoid any swing in a restricted space B、B.shelter the ship from strong winds C、C.prevent from touching with other vessels D、D.make a convenience of cargo discharging

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第7题

[单选题] In order to prevent a person（）general average contribution on the ground that he was at fault，the fault must be something which constitutes an actionable wrong.

A、to recover B、to be recovered C、being recovered D、recovering

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第8题

[单选题] Tugs sometimes shackle a length of chain in the towline in order to（）.

A、take the wear should the towline drag bottom B、assure that if the towline is overstressed it will part close to the bridle C、prevent the towline from whipping should it part D、put spring in the towline

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第9题

[单选题] Fire hose couplings（）.

A、are made of bronze，brass，or soft alloy metals B、should be painted red in order to identify hose lengths C、are specially hardened to prevent crushing D、should be greased frequently

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第10题

[单选题] Fire hose couplings（）.

A、are made of bronze, brass, or soft alloy metals B、should be painted rad in order to identify hose lengths C、are specially hardended to prevent crushing D、should be greased frequently

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In order to prevent galvanic corrosion，an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?（）

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