Which of the lists forms of heat transfer, if any, is illustrated by the flow of combustion gases through a boiler?（）

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• Which of the following forms of energy is demonstrated through the process of combustion?（）

  A . Chemical energy B . Mechanical energy C . Thermal energy D . Electrical energy

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• Which of the listed effects represents the purpose of heat treating steel?（）

  A . Develop ductility B . Improve machining qualities C . Relieves stresses D . All of the above

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• Which of the following is not a form of precipitation?（）

  A . rain B . frost C . sleet D . snow

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• Which of the listed cylinder liner surface conditions indicates proper lubrication?（）

  A . Dull black appearance B . Bright appearance C . Thin layer of lacquer D . Thick oily film

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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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• Which of the listed classes of fire would most likely occur in the engine room of a vessel?（）

  A . Classes A and B B . Classes B and C C . Classes C and D D . Classes A and D

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

  A . Expansion valve B . Condenser C . Evaporator D . Compressor

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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 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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• 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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• james needs to sort a list of values in a list of values in fieldA, and when the form in saved ,he wants to sort the list before it is saved. Which one of the following formulas would accomplish this?（）

  A .  @sort  B .  @sort(@thisvalue)  C .  @sortAscending(fieldA)       D .  @sort(“ascesding”;”fieldA”)

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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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• Using the LIST command in Recovery Manager (RMAN), which two pieces of information in the RMANrepository can be listed?（）

  A . stored scripts in the recovery catalog B . backups that can be deleted from disk C . backup sets and image copies are obsolete D . backups that do not have the AVAILABLE status in the RMAN repository RMAN

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

  A . lsvg -p datavg B . lsvg -l datavg C . lsvg -L datavg D . lsvg -o 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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• About the forms of Parallelism, which of the following is NOT true?

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• Which of the followings are forms of direct marketing?

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• Which of the following combining forms means “bone”?

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• Which of the following concepts forms the basis of target marketing?

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• Which of the following is a major form. of conducting a business（).

  A．A.institution B．B.charity C．C.corporation D．D.trust

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