单选题You will load and carry a bulk cargo of sulphur at ambient temperature. Which statement is true?（）.A Wooden covers must be laid over the bilge wells to prevent the sulphur from entering the bilgesB Bulk sulphur may be carried without a special permit p

题目

单选题

You will load and carry a bulk cargo of sulphur at ambient temperature. Which statement is true?（）.

Wooden covers must be laid over the bilge wells to prevent the sulphur from entering the bilges

Bulk sulphur may be carried without a special permit providing the vessel complies with all applicable regulations

The majir charateristic of this cargo is that it forms sulfuric acid upon contact with water

Other hazardous material may not be stowed in the same hold as the sulphur bue may carried on deck above the hold

参考答案和解析

正确答案： C

解析：暂无解析

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相似问题和答案

第1题：

If you are loading fruit in reefer spaces and you notice that the fruit is beginning to mold，you should ______.

A.carry the cargo at a cooler temperature than originally planned

B.write up exceptions on the cargo

C.refuse to carry the cargo

D.discharge CO2 into the compartment after loading

正确答案：B

第2题：

This is to advise you that MV Water Way is ______ ready and fit to discharge her cargo of grain in bulk．

A.fully

B.in all respects

C.properly

D.perfectly

正确答案：B

第3题：

You are the database administrator for a financial services company. Employees enter data 24 hours a day into a SQL Server 2000 database. These employees report slower response times when new account information is gathered from branch offices and added to the database. You currently use the following BULK INSERT statement to add the account information:

BULK INSERT finance.dbo.customers

FROM ‘di\bulk\accts143_10141000.txt’

WITH DATAFILETYPE = ‘char’,

FIELD/TERMINATOR = ‘\t’,

ROWTERMINATOR = ‘\n,’

TABLOCK

You want to ensure that response times do not slow when new account information is added to the database. What should you do?

A．Drop the indexes for the customers table before the data load, and then re-create the indexes after the data load is complete.

B．Remove the TABLOCK option from the BULK INSERT statement.

C．Add the BATCHSIZE option to the BULK INSERT statement and then set the option equal to 10 percent of the number of rows to be loaded.

D．Add the ROWS_PER_BATCH option to the BULK INSERT statement and then set the option equal to 10 percent of the number of rows to be loaded.

正确答案：B
解析：Explanation: The TABLOCK hint increases the number of locks during the adding process. This is the reason why response time are slows down during this process. By removing the TABLOCK hint the default more granular row-level lock will be used. This would decrease the scope of the locks which would result in less waiting jobs and performance would improve.

Note: The BULK INSERT statement is used to copy a data file into a database table or view in a format specified by the user. The BULK INSERT statement accepts the TABLOCK hint, which allows the user to specify the locking behavior. that the BULK INSERT statement should use. TABLOCK specifies that a bulk update table-level lock is taken for the duration of the bulk copy. If TABLOCK is not specified, the default uses row-level locks.

Incorrect Answers:
A: The recommendation to perform. the bulk copy operation with the indexes in place depends on the amount of data to be copied into the table compared to the amount of existing data already in the table. The large the amount of data to be loaded into a table, relative to the amount of data already in the table, the more efficient it is to drop all indexes on the table, perform. the bulk copy operation, and then re-create the indexes after the data is loaded

C: The BATCHSIZE option of the BULK INSERT statement is used to specify that SQL Server 2000 must treat each batch of rows inserted into the table as a separate transaction. This is useful when errors occur in the bulk copy operation, which would cause the transaction to be rolled back. By specifying the BATCHSIZE option, only the current transaction will be rolled back if an error occurs and the destination table still contains the other batches of rows that were successfully inserted.

D: The ROWS_PER_BATCH option of the BULK INSERT statement SQL Server can be used to
indicate the approximate number of rows in a batch. SQL Server 2000 then optimizes the load automatically, according to the batch size value, which may result in better performance. Although accuracy in the clause is not critical, the larger the batch size is, the better the performance of the bulk copy operation.

第4题：

Your tanker is fully loaded，and you find that she is down slightly by the head．To adjust the trim，you may ______．

A.Add ballast aft

B.Load more cargo aft

C.Shift cargo aft

D.All of the above

正确答案：C

第5题：

You are to load styrene in bulk，which is subject to self-polymerization．You must ______．

A.Not carry any cargo in the tanks surrounding the tank loaded with styrene

B.Inject nitrogen to pad any ullage above the styrene to prevent contact with oxygen

C.Be furnished with a Certificate of Inhibition to be maintained on the bridge

D.Use heating coils to maintain the styrene within the temperatures specified by the shipper

正确答案：C

第6题：

A "dangerous cargo manifest" is needed for you to carry a combustible cargo. You should obtain the shipping papers to make this "manifest" from the ______.

A.manufacturer

B.ABS

C.Coast Guard

D.shipper

正确答案：D

第7题：

You are on a multiple-product tanker and scheduled to load a cargo classed as an aromatic amine．This cargo is incompatible with cargoes classed as ______．

A.organic anhydrides

B.ketones

C.phenols

D.esters

正确答案：A

第8题：

If you carry packaged hazardous cargoes on a break bulk vessel bound foreign，you must ______.

A.stow the hazardous cargoes on deck available for jettisoning if necessary

B.remove the hazardous cargo labels from a portable tank after the tank is emptied

C.have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes

D.log the receipt of hazardous cargoes in the Official Logbook

正确答案：C

第9题：

You are scheduled to load a bulk shipment of steel turnings．Which statement is TRUE ________．

A.The primary hazard of this cargo is that it is subject to spontaneous heating and ignition

B.The shipping papers should describe this cargo as Waste，Steel Borings

C.After loading，you may not sail if the temperature in each hold of steel turnings exceeds 54℃

D.This cargo may not be transported in bulk unless a special permit is issued by the competent authorities

正确答案：D

第10题：

杂货船可以用自己的吊杆装卸货物。（）

A、General cargo ships may load and discharge by her own winch.
B、Bulk carriers may handle cargo by her own derricks.
C、General cargo ships may load and discharge by her own derricks.
D、General cargo ships may load and discharge by cranes.

正确答案:C

You will load and carry a bulk cargo of sulphur at ambient t

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