An un-loader is installed on an air compressor to （）.
1、An exhaust gas bypass is installed on
An exhaust gas bypass is installed on a waste heat boiler in order to （）.Abypass exhaust gas at high loads to prevent excessive back pressu...
2、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
3、The boom stops are installed on an off
The boom stops are installed on an offshore crane to（）.Aprevent the boom from being raised too highBprevent the boom from swingingCsupport the boom when not in useDprevent the boom from being lowered
4、An obstruction on a helodeck is any ob
An obstruction on a helodeck is any object that might present a hazard to the（）.Arotor blades and landing gearBunloading of passengersCloading of cargoDpilot's visibility
5、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
6、An inert gas system installed on a tan
An inert gas system installed on a tanker is designed to（）.Aaid in the stripping and cleaning of cargo tanksBincrease the rate of discharge ...