“Dial back” systems use passwords.

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  A .  Compatibility with third-party Fibre Channel switches B .  Faster throughput C .  Reduce domain IDs in a Fibre Channel environment D .  Support for increased number of VSANs E .  Support for SAN port channel

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• An inert gas system on a tanker should be used to（）.

  A . prevent the generation of flammable or combustible gas in tanks B . blow out cargo lines to prevent the build up of gas concentrations C . dilute tank atmospheres to keep gas concentrations below the lower explosive limit D . prevent fires in the pumproom by continually displacing flammable vapor

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• Which of the following can be used in hydraulic transmission system?（）

  A . Hydraulic oil B . Animal oil C . Light oil D . Fuel oil

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• The Consol navigation system，used in Russian and Northern European waters，can be used（）.

  A . for precise navigation in coastal waters B . by measuring the phase difference of the dots and dashes C . as an aid to ocean navigation D . if the vessel is fitted with a special Consol receiver

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• Using an inert gas system on a tanker has which advantage(s)? （）

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• The receiver used in a refrigeration system（）

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  A、the suction and discharge valves B、tools and equipment served by compressed air C、air line reducing valves D、all of the above

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• Which procedure should be used to configure the system to prevent all users from using the ’at’ command（）？  

  A . Create a /var/adm/cron/at.allow file with no entries B . Create a /var/adm/cron/at.deny file with ’*’ as the only entry C . Create a /var/adm/at/at.deny file with ’ALL’ as the only entry D . Create a /var/adm/at/at.allow file with ’NONE’ as the only entry

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• Which of the following commands should be used to report statistics on network protocols used by the system？（）

  A .  lsattr B .  pstat C .  netstat D .  ifconfig

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• A permanent chain chasing system is used to（）.

  A . clean anchor chain as it's hauled in B . recover anchors which have lost their buoys C . run and retrieve anchors D . prepare anchor chain for inspectio

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• Individual wires，used in systems greater than 50 volts,（）.

  A . should be supported at 24 inch intervals with plastic tie wraps B . should never be located in a tank C . must be installed in conduit D . All of the above

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• Hydraulic pumps most commonly used in steering systems are of the （）.

  A . lobe type B . screw type C . axial piston type D . volute type

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• Overload protection on hydraulic system is provided by the use of （）.

  A、stop valves B、pressure relief valves C、balance valves D、regulating speed valves

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• （）is a space system using one or more artificial earth satellites.

  A . satellite network B . Satellite Link C . INMARSAT D . Satellite System

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• Most Computer operating systems in use today, including all consumer-targeted systems, include a TCP/IP（）.

  A . plan B . requirement C . implementation D . design

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• （） is not usually used in liquid cargo systems.

  A . Hydraulic drive systems B . Electric drive systems C . Steam drive systems D . Man-powered drive system

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• The two most common gases used in pneumatic system are （）

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• A solenoid valve used in a refrigeration system should be installed （）.

  A . with the axis of the solenoid horizontal, sensing temperature of the box, and upstream of the thermal expansion valve B . upright, sensing temperature of the box, and upstream of the thermal expansion valve C . upright, sensing temperature of the box, and downstream of the thermal expansion valve D . upright, sensing heat of the tail coil, and upstream of the thermal expansion valve

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• While monitoring a system using vmstat， which of the following options most likely indicates that the system is CPU bound？（）

  A .  r is greater than 40 B .  id is greater than 50 C .  sum of id and wa equals 50 D .  sum of us and sy equals 100

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• Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.

  A . controller B . governor C . instrument D . apparatu

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• What is the IBM tool used to configure the IBM System Storage DS5000 system？（）

  A . DS Storage Manager B . Tivoli Storage Manager C . Remote Support Manager D . Tivoli Provisioning Manager

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• Which procedure should be used to configure the system to prevent all users from using the ‘at’ command?（）

  A . Create a /var/adm/cron/at.allow file with no entries B . Create a /var/adm/cron/at.deny file with '*' as the only entry C . Create a /var/adm/at/at.deny file with 'ALL' as the only entry D . Create a /var/adm/at/at.allow file with 'NONE' as the only entry

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• 52. ____ is not usually used in liquid cargo systems.

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