Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?（）

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• Which of the listed statements is correct concerning refrigeration systems?（）

  A . Dehydrators must be used continuously in a refrigeration system B . A 25 ton refrigeration system has the same cooling effect as melting 25 tons of ice in 24 hours C . A thermostatic expansion valve is used to control refrigerated space temperature D . The liquid receiver functions to collect and remove non- condensable gase

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• In which of the following lists of APS Action Requests is the priority correctly arranged from lowest tohighest？（）

  A . Wait-to-Restore，Forced Switch，Manual Switch，Lockout of Protection B . Manual Switch，Wait-to-Restore，Lockout of Protection，Forced Switch C . Lockout of Protection，Forced Switch， Manual Switch，Wait-to-Restore D . Lockout of Protection，Manual Switch， Forced Switch，Wait-to-Restore E . Wait-to-Restore，Manual Switch，Forced Switch，Lockout of Protection F . Wait-to-Restore，Manual Switch，Lockout of Protection，Forced Switch

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• Which of the listed refrigeration system components keeps the refrigerant circulating through the system?（）

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• After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.

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• Which of the processes listed consumes the greatest amount of power while producing the greatest amount of heat?（）

  A . Overcoming sliding friction B . Overcoming rolling friction C . Overcoming fluid friction D . Overcoming oil wedge frictio

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• Which of the petroleum products listed has the lowest flash point?（）

  A . Hydraulic oil B . Lubricating oil C . Diesel oil D . Refrigeration oil

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• Which of the following are characteristics of named access lists?（）

  A . Individual statements in a named access list may be deleted. B . They require a numbered range from 1000 to 1099. C . When created, they must be specified as standard or extended. D . They are created with the ip access-list command. E . The entire access list must be deleted before editing. F . They are applied with the ip name-group command.

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• Which action will affect the trim of a vessel? （）

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• Which of the listed statements is correct concerning the starting of centrifugal pumps?（）

  A . They should always be started with the discharge valve closed B . They should always be started with the discharge valve opened C . A priming pump is always required to flood the impeller suction D . They should always be started with the sealing line valves closed

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• When the helm demands a 20°right rudder movement from an electro-hydraulic steering gear, which of the listed actions will be the FIRST action to happen when this rudder position is attained?（）

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• In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）

  A . Constant tension mooring winch system B . Hatch cover system C . Watertight door system D . Internal combustion engine hydraulic starter system

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• Which of the listed bearing types is an example of a solid bearing?（）

  A . Piston wrist pin bushing B . turbine bearing C . Spring bearing D . Diesel engine main bearing

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• In which of the listed refrigeration system components does superheating of the refrigerant take place?（）

  A . Expansion valve B . Evaporator C . Drier D . Receiver

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• Which of the actions listed and instituted on your part will have the greatest lasting effect on the crew with respect to safety?（）

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• Your wireless network is not listed in the Connect to a network window of your computer. You need to connect to your wireless network. Which two actions should you perform?（） https://assets.asklib.com/images/image2/2018073116225014474.jpg

  A . A B . B C . C D . D E . E

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• 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

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• Your wireless network is not listed in the Connect to a network window of your computer. You need to connect to your wireless network.  Which two actions should you perform？（）

  A . Right-click and click the Diagnose option in the Connect to a network window. B . Set the security type value to No authentication in the wireless network properties dialog box. C . Click the Manually connect to a wireless network option in the Set up a connection or network window. D . In the Wireless Network properties dialog box， click the Connect even if the network is not broadcasting option. E . Configure the correct IP address， subnet mask， and default gateway for the target network in the wireless network connection properties dialog box.

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• Which of the following is the correct command to list the filesystems in datavg?（）

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• Which of the devices listed is common to all types of pumps?（）

  A . A power end and fluid end B . A propeller and educator C . A volute and impeller D . A turbine and pisto

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• Which of the following answer choices are correct characteristics of named access list?（）

  A . You can delete individual statements in a named access list B . Named access lists require a numbered range from 1000 to 1099. C . Named access lists must be specified as standard or extended. D . You can use the ip access-list command to create named access lists. E . You cannot delete individual statements in a named access list. F . You can use the ip name-group command to apply named access lists.

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• Your wireless network is not listed in the Connect to a network window of your computer. You need to connect to your wireless network.Which two actions should you perform？（）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/89516ba86f46455345fbbdb75d510af3.jpg' /> A．A B．B C．C D．D E．E

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