A thermostatic expansion valve is properly controlling evaporator superheatAdjusting this valve to lower the superheat will result in a/an （）.

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• The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the （）.

  A . quantity of fuel to be received B . flash point of the fuel as it is received C . fuel temperature as it is received D . viscosity of the fuel being received

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• Thermostatic expansion valves can be adjusted for （）.

  A . suction pressure only B . head pressure only C . superheat only D . suction pressure and box temperature

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• The expansion valve on a Freon system controls the （）.

  A . superheat of the gas leaving the compressor B . back pressure in the evaporator C . temperature of the icebox D . superheat of the gas leaving the evaporator

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• When designing an expansion within the same data center, when is a pre-sales TDA absolutely required by IBM?（）

  A . for a SAN768B Director B . for a second TS3500 Tape Library C . for a second EXP5060 Expansion Unit D . for an additional DS8300 Expansion Frame

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• A ruptured diaphragm in a thermostatic expansion valve will cause the valve to （）.

  A . open B . close C . remain in its position D . flood the evaporator with refrigerant

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• If the operating element of a thermostatic valve installed in a diesel engine cooling system malfunctions, it may result in （）

  A . a low level in the engine expansion tank B . excessively high coolant pressure C . improper temperatures D . malfunctioning of the jacket water heater

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• Which of the following drive types can be combined in a single EXP5000 expansion unit?（）

  A . SSD, SATA and FC only  B . SSD, SAS and FDE only  C . SSD, FDE, SATA and FC only  D . SSD, SAS, FDE, FC and SATA

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• A three-way thermostatic control valve regulates the diesel engine cooling water temperature by passing a portion of the water （）.

  A . around the engine B . around the cooler C . to the expansion tank D . overboard

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• Which of the following configuration is valid for expansion drawers on a Power 750 with 2 processor board sinstalled?（）

  A . 3 PCI-e I/O drawers and 1 PCI-X I/O drawer B . 4 PCI-e I/O drawers and 4 RIO-2 I/O drawers C . 2 PCI-e I/O drawers and 4 PCI-x I/O drawers D . 4 PCI-e I/O drawers and 2 PCI-X I/O drawer

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• A feeler or thermal bulb is used for the expansion valve to （）.

  A . detect the temperature B . detect the pressure C . heat the refrigerant D . accelerate the refrigerant

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• The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and （）.

  A . reduce water temperature B . reduce water turbulence C . provide an air cushion D . allow for an increase in water volume as the engine warms u

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• Which three Cisco CRS 4.0 components must be active on a Call Recording expansion server?（）

  A . Cisco CRS Repository Datastore, Cisco CRS Historical Datastore, Cisco CRS Config Datastore, CiscoCRS Agent Datastore   B . Cisco Recording   C . Cisco CRS Engine   D . Cisco Monitoring   E . Cisco CRS Node Manager   F . Historical Reporting client&e

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• If an auxiliary diesel engine temperature is higher than normal ,but the thermostat is determined not to be defective you would suspect a /an （）

  A . cavitation erosion in the water jackets B . excess corrosion inhibitor in the coolant C . dirty jacket water cooler D . defective turbocharger

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• A cracked diaphragm in a thermostatic expansion valve will cause the valve to （）.

  A . return to a neutral position B . flood the evaporator C . open D . close

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• Which of the listed statements is a characteristic of the liquid charged power element used with thermostatic expansion valves?（）

  A . At the designed operating temperature, the liquid refrigerant charge has changed to a vapor B . The liquid refrigerant tends to collect at the bellows or diaphragm and reduces the valve sensitivity C . The sensing bulb is empty of liquid refrigerant charge at the designed operating temperature D . The sensing bulb is never emptied of liquid refrigerant under normal operating conditio

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• When a refrigeration compressor is in the ‘off’ cycle, the thermal expansion valve will（）.

  A . always be wide open when the compressor restarts B . continue to operate as if the system were in operation C . remain open until evaporator pressure equalizes, then close until the compressor restarts D . always be completely closed until the compressor restart

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• Which of the following four CRS components must be active on a Historical Reporting Database (HRDB) and Call Recording expansion server?（）

  A . CRS Node Manager  B . CRS Engine  C . Cisco Recording  D . CRS Application Editor  E . Cisco Monitoring  F . CRS Repository Datastore, CRS Historical Datastore, CRS Config Datastore, CRS Agent Datastore

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• Relating to the story of K by Coetzee, Robinson Crusoe can be seen as a typical image of a colonizer in British expansion.

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• When a refrigeration compressor is in the ‘off’ cycle, the thermal expansion valve will .

  A.always be wide open when the compressor restarts B.continue to operate as if the system were in operation C.remain open until evaporator pressure equalizes, then close until the compressor restarts D.always be completely closed until the compressor restarts

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• Direct expansion and diversification are examples of a corporate retrenchment strategy

  是 否

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• When we stay at a room in a house with central air-conditioning system in summer, we should set the thermostat to a higher level in ______.

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• The four strokes of a four-stroke diesel engine according to their sequence are :suction,compression,expansion and exhaust.()

  此题为判断题(对，错)。

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• Among the four strokes of a four-stroke diesel engine,suction and expansion strokes are the upward strokes.()

  此题为判断题(对，错)。

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• After a company has successfully entered a new market, the primary rule dictating its expansion in the I new market is risk while optimizing opportunity. （)

  A、minimizing B、to minimize C、minimize

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