海船船员考试
单选题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 oilB Slight shortage of refrigerantC Excessive condenser cool
题目
Shortage of refrigerant oil
Slight shortage of refrigerant
Excessive condenser cooling water flow
Faulty expansion valve
参考答案和解析
相似问题和答案
第1题：
cold fuel oil
low fuel oil pressure
low atomizing steam pressure
water in the fuel oil
第2题：
Dirty lube oil filter
Too much piston ring wear
High lube oil viscosity
Low lube oil temperature
第3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
解析：refrigeration：冷藏，制冷;constantly：恒定地;simultaneously：同时;de-crease：减少;refrigerate：冷藏，制冷;refrigerant：制冷剂;slight：轻微
译文：如果制冷压缩机持续运转的同时被冷却空间没有降温，其原因可能是制冷剂不足。
第4题：
Exhaust temperature
Lube oil level
Lube oil pressure
Water level in the expansion tank
第5题：
High lube oil pressure
High jacket water pressure
High jacket water temperature
Low jacket water pressure
第6题：
clogged air filter
compression stroke
burned exhaust valves
all of the above
第7题：
Closing of the solenoid valve
Closing of the expansion valve
An increase in the suction pressure
Decreasing the suction pressure
第8题：
Which of the listed conditions can be considered as the single greatest cause of accidents?
A.Speed
B.Excessive knowledge or skill
C.Human error
D.Excitement
第9题：
A shortage of liquid refrigerant
Excessive frost on the evaporator
Excessive condenser cooling water
Insufficient condenser cooling water flow
第10题：
Loss of compression for that cylinder
Misfiring or rough running
Damage to the valve
All of the above