You are in charge of a towing vessel that operates exclusive

If you are the Master of a towing vessel whose only working radar no longer functions，what must you do?

A.Notify the Captain of the Port (COTP) if you cannot repair it within 96 hours

B.Notify the Officer in Charge of Marine Inspection (OCMI) if you cannot repair it within 48 hours

C.Moor the vessel until it is repaired

D.Anchor the vessel until it is repaired

You are in charge of a towing vessel that operates exclusively on inland waters. You regularly tow barges that provide services (cargo lighters，fuel barges，etc.) to foreign flag vessels in port. What will be accepted as proper credentials for you and your crew?

A.No credentials are required since you operate on inland waters only

B.Social Security card

C.State driver's license with photo ID

D.Merchant Mariner's Document

When you compare the differences between half-duplex and full-duplex Ethernet, which of the following characteristics are exclusive to half-duplex? (Select two answer choices)

A．Half-duplex Ethernet operates in a shared collision domain.

B．Half-duplex Ethernet operates in an exclusive broadcast domain.

C．Half-duplex Ethernet has efficient throughput.

D．Half-duplex Ethernet has lower effective throughput.

E．Half-duplex Ethernet operates in an exclusive collision domain.

A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of ______．

A.A vessel towing by pushing ahead

B.A power-driven vessel，not towing

C.A barge being pushed ahead

D.Either answer A or answer B

The final inspection responsibility for seeing that a tank barge is provided with the required equipment and fittings in good and serviceable condition prior to loading cargo rests with the ______.

A.terminal operator

B.owner of the barge

C.tankerman or person in charge of loading

D.charterer through the Master of the towing vessel

A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit ______.

A.the masthead lights for a towing vessel

B.the lights for a vessel restricted in its ability to maneuver

C.sidelights，stern light and towing light

D.All of the above

The radiotelephone required by the Vessel Bridge-to-Bridge Radiotelephone Act is for the exclusive use of ______.

A.the Master or person in charge of the vessel

B.a person designated by the Master

C.a person on board to pilot the vessel

D.All of the above

If practical, when shall a manned vessel being towed sound her fog signal?______.

A.Immediately before the towing vessel sounds hers

B.Immediately after the towing vessel sounds hers.

C.As close to the mid-cycle of the towing vessel’s signals as possible

D.At any time as long as the interval is correct