If an air compressor is used to supply compressed air to outlets throughout the engine room and on deck of a vessel, the system is known as the （）.
1、If an air compressor is used to supply
If an air compressor is used to supply air primarily to the combustion control system and other pneumatic controllers, the entire system is known as the （）.Acontrol air systemBforced draft air systemCsupply air systemDships service air system
2、Oil is supplied to the crosshead using
Oil is supplied to the crosshead using a swinging arm or a （） and is sometimes boosted in pressure to and efficient lubrication.Atelescopic pipeBlarge bore pipeCgenerating pipeDcentral pipe
3、Which method is used to supply inert g
Which method is used to supply inert gas from a flue gas system to the cargo tanks?（）AExhaust gas pressure from the stackBHigh capacity fanCInert gas compressorDNatural aspiratio
4、An air mass is termed warm if（）.
An air mass is termed warm if（）.Ait is above 70°FBthe ground over which it moves is cooler than the airCit originated in a high pressure areaDit originated in a low pressure area
5、Before starting an air compressor, It
Before starting an air compressor, It should be （）.AturnedBoil level checkedCfilled with waterDA and B
6、If an emergency pump control is used a
If an emergency pump control is used as the emergency shutdown on a tanker，it must（）.Astop the flow of oil at the main deck manifoldBprevent the oil from leaving the shore facilityCprevent the oil from siphoning through the pumpDNone of the above