Answer :
When pressurizing a system with nitrogen, it's crucial to charge with nitrogen vapor only, hence the correct answer is A) charge with liquid nitrogen only.
When pressurizing a system with nitrogen, it is crucial to ensure the correct procedures are followed to maintain safety and optimal performance.
Nitrogen gas is commonly used for pressurization due to its inert nature, which reduces the risk of combustion or reaction with other substances.
The process of pressurizing with nitrogen involves several key considerations to ensure effectiveness and safety.
Firstly, it's important to use nitrogen vapor rather than liquid nitrogen for pressurization. Liquid nitrogen can be extremely cold and may cause damage to equipment or create safety hazards if not handled properly.
Nitrogen vapor, on the other hand, is at a suitable temperature and pressure for pressurizing systems without posing significant risks.
Additionally, it's crucial to avoid charging the system with mixtures of nitrogen and other gases such as oxygen or carbon dioxide.
