海船船员考试

单选题Which of the following actions should be taken if during a routine maintenance inspection of a centrifugal pump, localized scoring on a pump shaft sleeve is detected?()A Correct the cause of the scoring and repair the sleeve or replace with a new oneB

题目
单选题
Which of the following actions should be taken if during a routine maintenance inspection of a centrifugal pump, localized scoring on a pump shaft sleeve is detected?()
A

Correct the cause of the scoring and repair the sleeve or replace with a new one

B

Reassemble the unit and provide more water leak off for proper lubrication

C

Check for parallel alignment of the sleeve radial faces to the sleeve bores

D

Reassemble the unit and adjust the governor to obtain a slower speed

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相似问题和答案

第1题:

Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem?()

  • A、 istat
  • B、 topas
  • C、 vmstat
  • D、 filemon

正确答案:B

第2题:

A customer has security concerns about classified local data being compromised if the laptop isstolen. The customers laptop has Windows 2000 utilizing the FAT16 file system. Which of the following actions should be taken?()

  • A、Upgrade the operating system to Windows XP Home.
  • B、Have the customer convert to NTFS and enable data encryption.
  • C、Tell the customer that a laptop should not be used for classified data.
  • D、Configure the wireless adapter to only connect to secure networks.

正确答案:B

第3题:

VLAN maps have been configured on switch R1.  Which of the following actions are taken in a  VLAN map that does not contain a match clause?  ()

  • A、 Implicit deny feature at end of list.
  • B、 Implicit deny feature at start of list.
  • C、 Implicit forward feature at end of list
  • D、 Implicit forward feature at start of list.

正确答案:A

第4题:

A technician is installing a memory upgrade for a remote user. The technician notes that the machine is not reporting the correct amount of memory that was installed during the POST step. Which of the following actions should the technician perform FIRST?()

  • A、Replace the newly installed memory modules with another known-working unit.
  • B、Remove and reseat the memory, and recheck the memory reported.
  • C、Leave the configuration intact, and check cabling to ensure nothing was loose during the installation.
  • D、Perform a BIOS upgrade on the machine.

正确答案:B

第5题:

During boot up, a laptop screen displays vertical colored lines and then the LCD screen goes blank. There are no display problems when connected to an external monitor. Which of the following actions should be taken to resolve the problem? ()

  • A、Replace the laptop.
  • B、Replace the LCD screen.
  • C、Replace the LCD pixels.
  • D、Re-select the LCD in Device Manager.

正确答案:B

第6题:

A user is reporting that access to a file server is much slower than it has been. The system administrator completes a test of the server using a system monitoring tool and compares it to the previously taken baseline. The comparison shows that there are no significant changes in the use ofsystem resources.  Which of the following actions should be taken to resolve this users problem?()

  • A、 Add additional RAM to the users PC
  • B、 Troubleshoot the users PC
  • C、 Add additional RAM to the server
  • D、 Add additional hard drive space to the server

正确答案:B

第7题:

A server administrator implements a solution that should fix an issue. Which of the following should the administrator do NEXT in the troubleshooting process?()

  • A、Notify users impacted by the problem
  • B、Verify full system functionality
  • C、Document the actions and outcomes
  • D、Identify the scope of the problem

正确答案:B

第8题:

A System p administrator found a process on the server that should be stopped.  Which of the following commands can be used to list all the signal actions defined for this process()

  • A、ps
  • B、pstat
  • C、lssig
  • D、procsig

正确答案:D

第9题:

When installing a new scanner, Windows XP does not automatically recognize the scanner. Which of the following actions should be taken?()

  • A、Use the Scanners and Cameras Wizard to add the device.
  • B、Enable the scanner in the BIOS.
  • C、Add new printer Wizard.
  • D、Ensure the scanner is not locked.

正确答案:A

第10题:

A client reports that the laptop is not performing a complete charge of the battery. Which of the following actions should be taken FIRST? ()

  • A、Update the BIOS.
  • B、Run the battery calibrator.
  • C、Reinstall the ACPI drivers.
  • D、Replace the power adapter.

正确答案:B

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