海船船员考试
单选题Which of the following statements concerning the water tube and fire tube boilers is not true?（）A natural circulation of the water in the water tube boiler is better than that in the fire tube boilerB for the same output the water tube boiler will carr
题目
natural circulation of the water in the water tube boiler is better than that in the fire tube boiler
for the same output the water tube boiler will carry less mass of water compared with the fire tube boiler
the water tube boiler will cost shorter time for steam raising
the water tube boiler require lower skill in operating and maintaining
相似问题和答案
第1题：
B.Many factors combine to cause changes in oceanic salinity
C.The movement of the water is related to the amount of salt
D.The temperature of the water has much to do with the oceanic salinity
第2题：
Energy can be created or destroyed
Energy may not be transformed
The total quantity of energy in the universe is always the same
None of the above
第3题：
A、It is a small sensory organ, which is located toward the front of the vulva where the folds of the labia join
B、It is a female’s external reproductive organ
C、It is a muscular, hollow tube that extends from the vaginal opening to the uterus
D、It is shaped like an upside-down pear, with a thick lining and muscular walls
第4题：
Special tools are required for lapping or grinding
It is impossible to throttle flow with a butterfly valve
To close the valve, it is only necessary to turn the handle a quarter of a turn
The butterfly valve should never be used in a freshwater system
第5题：
Baffle plates that have been bent during prior removal
Leaks in the cooler tube nest
Operating the engine while maintaining a high sea water outlet temperature
A punctured sea water strainer supplying cooling water to the heat exchanger
第6题：
Which of the following statements concerning intellectual property is wrong？（）
- A、Intellectual property is an intangible creation
- B、Intellectual property in ludes patents，trademarks，copyrights，etc.
- C、Intellectual property is a visible creation
- D、There are some agreement sconcerning intellectual property under the WTO
正确答案:C
第7题：
c=d
l and k are parallel
m and l are perpendicular
根据题目中的已知信息无法推断出各直线的关系，因此B、C均不正确；而由图示可知，c和d分别是a和b的补角，由于a=b，所以c=d，A项正确。
第8题：
Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system?
A.Baffle plates that have been bent during prior removal
B.Leaks m the cooler tube nest
C.Operating the engine while maintaining a high sea water outlet temperature
D.A punctured sea water strainer supplying cooling water to the heat exchanger
第9题：
Cargoes are any type of goods transported by any type of ships
Cargoes are goods transported in bulk
Cargoes usually include goods transported in bulk and in containers
Cargoes are usually packaged in containers
第10题：
natural circulation of the water in the water tube boiler is better than that in the fire tube boiler
for the same output the water tube boiler will carry less mass of water compared with the fire tube boiler
the water tube boiler will cost shorter time for steam raising
the water tube boiler require lower skill in operating and maintaining