海船船员考试
单选题Distilled water from an evaporator may be discharged into a potable water tank （）.A through a detachable hose connectionB after passing through an activated charcoal filterC after chemical analysis shows it is fit for consumptionD through a solenoid op
题目
through a detachable hose connection
after passing through an activated charcoal filter
after chemical analysis shows it is fit for consumption
through a solenoid operated three-way valve
参考答案和解析
相似问题和答案
第1题：
What is the BEST conductor of electricity?
A.Carbon dioxide
B.Distilled water
C.Fresh water
D.Salt water
第2题：
poor distillate quality
reduced evaporator capacity
low brine concentration
improper vacuum regulation
第3题：
Brandy is a strong alcoholic spirit distilled from wine. Manufactured in many countries, brandy is most notable in the form. of cognac, made from white grapes in the Charente district of France. Most fine brandies are distilled in pot stills, blended and flavored, and stored in casks (preferably oak) to mellow. Brandies are also made from fruits other than the grape, such as plum or peach.Brandy is a soft drink spirit distilled from wine()
此题为判断题(对，错)。
第4题：
Fresh water may be obtained from fish
lifeboat covers or canopies should be washed with rain before drinking water is collected
Fresh water may be collected from condensation inside the life-raft
Freshwater cannot be produced from standing seawater
第5题：
restriction in refrigerant piping
air and non-condensable gases in the condenser
water in the refrigerant
flooding back of liquid refrigerant from the evaporator
第6题：
The number and position of hydrants arranged on board shall be such that _______，one of which shall be from a single length of hose，may reach any part of the ship normally accessible to the passengers or crew while the ship is being navigated．
A.at least two jets of water which shall be from the same length of hose
B.at least two jets of water emanating from the same hydrant
C.at least two jets of water not emanating from the same hydrant
D.at least two jets of water not emanating from the same hydrant，one of which shall be from a single length of hose
第7题：
a separate air ejector unit
a direct unimpeded connection between second stage and salt water feed heater
either by vacuum drag or an external line from the first stage via a fixed orifice
the fixed orifice provided in the steam supply line
第8题：
When the water produced from most evaporator is supplied for drinking purpose, it must be treated to ensure it is biologically pure and _____.
A.slightly acidic
B.slightly alkaline
C.no salty
D.slightly bitter
第9题：
to decrease scale formation
for better cooling effect
for more economical purpose
to raise vacuum
第10题：
fight an electrical fire
fight a magnesium fire
eliminate smoke from a compartment
All of the above