单选题What is the period of validity of the SOLAS required Cargo Ship Safety Construction Certificate? （）A 12 monthsB 24 monthsC 48 monthsD 60 months

After an IOPP Certificate is issued to an inspected vessel，how many other surveys of the vessel's pollution prevention equipment are conducted during the period of validity of the certificate?

A.None

B.One

C.Two

D.Three

The Master to sign or if required by Charterers to authorise Charterers or their Agents to sign__________ for cargo as presented in conformity with Mate's or Tally Clerks' receipts.

A.Charter Party

B.Mate’s Receipts

C.Document relating to freight

D.Bills of Lading

What is the minimum period of time that the air supply for a self-contained breathing apparatus is required to last?________.

A.10 minutes

B.20 minutes

C.30 minutes

D.90 minutes

Which statement about the dangerous cargo manifest，carried on a ship，is TRUE ________．

A.The manifest must be made up by the Master or other designated ship's officer

B.Shipments of hazardous and non-hazardous cargo may be listed on the manifest if they are destined for the same consignee

C.The manifest must be kept in a designated holder on or near the bridge

D.The type of label（s）required for each cargo must be indicated

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

______ is just to put it ______ and notify me as to where and how the cargo was damaged．

A.What you ought to do with the damaged cargo／aside

B.What you should do with the damaged cargo／beside

C.What will you do with the damaged cargo／besides

D.What have you to do with the damaged cargo／side by side

Why is gas-freeing rarely required for LPG cargo tanks?

A.LPG is compatible with all cargos

B.LPG's high oxygen content makes it nonvolatile

C.Cargo tanks are inspected less frequently than on oil tankers

D.The cargo tanks are used for one type of cargo only

According to the regulations，what type of gauging is required for a cargo of butadiene?

A.Open

B.Restricted

C.Closed

D.None

What is the period of validity of the SOLAS required Cargo Ship Safety Construction Certificate?

A.12 months

B.24 months

C.48 months

D.60 months

What characterizes a Ro-Ro vessel ________．

A.May carry up to 24 passengers

B.High freeboard and sail area

C.Long port stays required for cargo securing

D.Lightweight securing equipment trailers