An amplitude of the Sun in high latitudes（）.
1、Failure of the burner flame in an auxi
Failure of the burner flame in an auxiliary boiler would probably be a result of（）Awater in the fuel oilBbroken high tension leadsCincorrect electrode settingDfull fuel pressure at the nozzle
2、The purpose of the deck seal in an ine
The purpose of the deck seal in an inert gas system is to prevent（）.Aflammable vapors from entering machinery spaceBflue gas escaping to atmosphereCinert gas escaping to atmosphereDair entering inert gas system
3、Sludge may form in the crankcase of an
Sludge may form in the crankcase of an air conditioning compressor as a result of （）.Abubbling refrigerantBoverheating and oxidationClowered operating temperaturesDreducing the cloud or flash point
4、In the event of failure of an auxiliar
In the event of failure of an auxiliary such as a lubricating pump, the standby pump is started and put on the line automatically“the line”...
5、The air spaces in the floor of an infl
The air spaces in the floor of an inflatable liferaft will provide protection against（）.Aasphyxiation from CO2Bloss of air in the sides of the raftCrough seasDcold water temperature
6、When an azimuth of the Sun has been ta
When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the res...