海船船员考试
单选题A refrigerant with oil in solution has a （）.A higher boiling temperature for a given pressure than does a pure refrigerantB lower boiling temperature for a given pressure than does a pure refrigerantC boiling pressure equal to that of a pure refrigeran
题目
higher boiling temperature for a given pressure than does a pure refrigerant
lower boiling temperature for a given pressure than does a pure refrigerant
boiling pressure equal to that of a pure refrigerant at a given pressure
boiling point will not be affected by entrained oil
参考答案和解析
相似问题和答案
第1题：
Excessive circulation of the lubricating oil with the refrigerant in a refrigeration system will cause______.
A.carbon deposits on the compressor suction valves
B.the evaporator temperature to increase
C.rapid corrosion of the thermal expansion valve
D.no operating problems
第2题：
B. prevent oil companies employing people from northern Norway
C. help the oil companies solve many of their problems
D. keep the oil industry to something near its present size
第3题：
Moisture is removed from a refrigeration system by
A.bleeding refrigerant from the condenser
B.opening a drain petcock on the oil separator
C.condensing the water in the heat exchanger
D.using a dehydrator cartridge
第4题：
sudden evaporation of wax crystals in the lubricant
sudden evaporation of entrapped air in the lubricant
release of refrigerant from the oil/refrigerant mixture
release of dissolved lubricant from the refrigerant
第5题：
A solution provider has proposed a pSeries solution to a new customer. The solution is complex with a number of technologies that are new to the customer. They have a tight timeline for implementation. The solution provider has not been able to get a clear understanding as to how the customer will backup the system. What would be the most appropriate action to address the risks with this solution？（）
- A、Sell Sysback
- B、Conduct a SAR
- C、Sell Supportline
- D、Provide a project timeline
正确答案:B
第6题：
The requirement to carry an Oil Record Book does not apply to a ship that ______.
A.is not equipped to discharge overboard any oil or oily mixture
B.is on an international voyage to a country that is a party to MARPOL
C.has an International Oil Pollution Prevention Certificate
D.has an oily water separator of sufficient capacity for the oil wastes generated
第7题：
A section of the building has been having intermittent connectivity problems lately. An action plan and solution has been created. Which of the following steps would an administrator perform NEXT?（）
- A、Document the solution and process.
- B、Establish the most probable cause.
- C、Implement and test the solution.
- D、Identify additional symptoms and problems
正确答案:C
第8题：
Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of ______.
A.refrigerant bubbles in the lube oil
B.refrigerant reducing the lube oil viscosity
C.oxidation(氧化) of the lube oil from overheating
D.reducing the floc or cloud point of the oil
第9题：
contaminated with sludge
contaminated with carbon
diluted with fuel oil
diluted with water
第10题：
a shortage of refrigerant in the system
air in the system
an accumulation of liquid refrigerant in the crankcase
a shortage of oil in the crankcase