Which of the fluids listed is NOT suitable...

Question 1 of 31048hcpXuVcC8k4A3QnnrXob

Which of the fluids listed is NOT suitable for use as a secondary refrigerant?

Question 1 of 31048

Which of the fluids listed is NOT suitable for use as a secondary refrigerant?

🔍 Key Concepts

• Properties of secondary refrigerants (thermal capacity, corrosion, toxicity, flammability) • Difference between refrigerant (in the machine) and secondary refrigerant (circulating fluid that carries cold) • Suitability of fluids for pumped circulation in piping systems aboard ships (materials compatibility and safety)

💭 Think About

• Think about which of these substances is commonly used as the actual refrigerant in systems, rather than as the liquid that is pumped around coils or fan units. • Consider which option might cause serious corrosion or material-compatibility problems in standard shipboard piping and coils. • Ask yourself which fluid characteristics are important for a secondary refrigerant: low freezing point, good heat transfer, reasonable viscosity, and safe handling in case of leaks.

✅ Before You Answer

• Verify which listed fluids are actually used in practice as secondary refrigerants in marine or industrial refrigeration (e.g., brines and certain alcohols). • Check whether any option is primarily known as a corrosive chemical salt rather than a typical refrigeration fluid. • Confirm whether each fluid would be safe to pump in large quantities through occupied spaces if a leak occurred (toxicity, corrosiveness, flammability).