The heated feed-water entering any flash chamber of a flash-type evaporator will（）

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• The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.

  A . remain constant along the tubes length B . be greatest in a single pass counter flow heat exchanger C . remain constant throughout the heat exchanger D . vary from section to section through out the heat exchanger

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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 commands is used to display detailed ethernet statistics for ent0？（）

  A .  ifconfig ent0 B .  entstat -d ent0 C .  netstat -i D .  lscfg -vl ent0

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• How should TCP/IP be configured on the ent0 network adapter?（）

  A . ifconfig en0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254 B . ifconfig ent0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254 C . mktcpip test61 -a 192.168.10.1 -i en0 255.255.255.0 192.168.10.254 -smktcpip ? test61 -a 192.168.10.1 -i en0 ? 255.255.255.0 ? 192.168.10.254 -s D . mktcpip test61 -a 192.168.10.1 -i ent0 255.255.255.0 192.168.10.254 -smktcpip ? test61 -a 192.168.10.1 -i ent0 ? 255.255.255.0 ? 192.168.10.254 -

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• In a refrigeration system, the refrigerant absorbs the latent heat of vaporization in the（）.

  A . compressor B . condenser C . receiver D . evaporator

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• The treatment of the fuel oils involves storage, heating, filtering and（）

  A . centrifuging B . pressurizing C . atomization D . igniting

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• The refrigerant flows through the evaporator, where it （） heat from the refrigerated space.

  A . extracts B . releases C . gives no D . absorbs no

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• The latent heat of water vapor in air is dependent upon the （）

  A . dry bulb temperature B . wet bulb temperature C . dew point D . dry point

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• The sensible heat of air is dependent upon the （）.

  A . dry bulb temperature B . wet bulb temperature C . saturation temperature D . water vapor superheat

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• （） the cylinder walls, the heat passes through them by conduction.

  A . When receiving by B . When received by C . In order to receiving D . In order to receive

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• The rate of expansion of heated fuel oil varies with the （）.

  A . conductivity B . viscosity C . volume D . specific gravity

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• The heat required to change a substance from a solid to a liquid while at its freezing temperature, is known as the latent heat of （）.

  A . fusion B . vaporization C . condensation D . sublimatio

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• Why did the man wait in the heat for two hours?

  A . The coach had to be replaced． B . The coach driver felt sick． C . The hotel rooms were full． D . The hotel had to be cleaned．

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• Heat causes the（）of gas.

  A . growth B . increase C . expansion D . extensio

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• How should TCP/IP be configured on the ent0 network adapter？（）

  A . ifconfig en0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254 B . ifconfig ent0 192.168.10.1 netmask 255.255.255.0 gateway 192.168.10.254 C . mktcpip h test61 -a 192.168.10.1 -i en0 m 255.255.255.0 g 192.168.10.254 -s D . mktcpip h test61 -a 192.168.10.1 -i ent0 m 255.255.255.0 g 192.168.10.254 -

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• A technical specialist defined a virtual Ethernet ent2 on the VIO server that has a physical  adapter， ent0. Which of the following commands should be used to configure the Shared Ethernet  Adapter？（）

  A . mkvdev -sea ent2 -vadapter ent0 -default ent0 -defaultid 1 B . mkdev -virtual ent0 -adapter ent3 -default en2 -defaultid 1 C . mkvdev -sea ent0 -vadapter ent2 -default ent2 -defaultid 1 D . mkvdev ent0 -sea -vadapter ent2 -default ent2 -defaultid 1

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• Too much excess air is （）because the heat generated is being lost through the exhaust trunking instead of being made used of in heating the water to produce steam.

  A . not good B . good C . better D . the best

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• The Earth’s irregular heating is caused by （）.

  A . the time of day B . the seasons C . geography D . All of the above

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• “ENT” in the passage stands for________.

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• “ENT” in the phrase “ENT Department” stands for________.

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• The energy released by the chemical reaction is ( ) heat.

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• The ENT Department is _____ the corridor.

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• The earth ___the necessary amount of heat and light from the sun（）

  A．supplies B．receives C．provides D．requires

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• In a diesel engine, offers the heat energy directly; works as working medium and changes the heat energy to mechanical energy.

  A.the burning of the fuel; medium shaft B.fuel spray; fresh air C.fuel; fuel spray D.the burning of the fuel; the burned gas mixture

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