Question 3306Deck General70% to pass
Clean air standards referred to as "Grade D" apply to compressed air for use in _______________.
AI Explanation
The correct answer is D) filling open-circuit breathing systems.
Grade D compressed air standards apply to compressed air used for filling open-circuit breathing systems, such as those used in SCUBA diving or other underwater applications. These standards ensure the air quality is safe for human respiration, with limits on contaminants and oxygen content.
The other answer choices are not directly related to the Grade D air standard, which is specifically for breathing air systems. Air used for driving pumps, accumulators, or other non-breathing applications would not need to meet this stringent respiratory air quality requirement.
Related Questions
#3304 On a MODU, a CO2 extinguisher is checked by _______________.#3305 A CO2 extinguisher which has lost 10% of its charge must be _______________.#3307 The record of tests and inspection of firefighting equipment on board a MODU must include _______________.#3308 Each fireman's outfit and its spare equipment on a MODU must be stowed _______________.#3309 Each hand portable fire extinguisher on a MODU must be marked with _______________.