lack of refrigerant
refrigerant with much water
set defectively low pressure relay
no cooling water
第1题：
Which of the conditions listed will cause a refrigeration compressor to run constantly without simultaneously decreasing the temperature in the refrigerated space?( )
A.Shortage of refrigerant oil
B.Slight shortage of refrigerant
C.Excessive condenser cooling water flow
D.Faulty expansion valve
第2题：
A. Find out what has recently changed on the network
B. Create an action plan and solution identifying potential effects.
C. Continue to gather information and see what other problems may exist.
D. Determine the most probable cause.
第3题：
Herzberg identified factors which, if present, will lead to increased motivation. A typical factor would be:
A Good supervision
B Job security
C Regular promotions
D Good salary
E A dental plan
第4题：
An engineer is preparing an implementation plan in which the configuration needs to influence BGP's choice of best path. Which of the following is least likely to be used by the configuration in this imple mentation plan?（）
第5题：
An engineer is preparing an implementation plan in which the configuration needs to influence BGP‘s choice of best path.Which of the following is least likely to be used by the configuration in this imple mentation plan?（）
A. Weight
B. Origin code
C. AS_Path
D. Local_Pref
第6题：
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?
A.A shortage of liquid refrigerant.
B.Excessive frost on the evaporator.
C.Excessive condenser cooling water.
D.Insufficient condenser cooling water flow.
第7题：
A.DROP
B.ALTER
C.DELETE
D.ROLLBACK
第8题：
Which of the following is defined as static information?___________.
A.Navigational status
B.Safety related message
C.MMSI
D.Route plan
第9题：
Which of the following actions may cause a trigger to be fired?（）
第10题：
Which of the following can cause a ribbon on an impact printer to tear?（）