Answer :
Final answer:
Supply hoses undergo annual testing at a pressure of 200 psi to ensure they can handle the extreme conditions they're exposed to in applications such as firefighting.
Explanation:
During annual testing, supply hose is tested at 200 psi (1379 kPa). This testing ensures that the hose can withstand the high pressures it may encounter during use without failing, which is particularly important for applications like firefighting. Testing at such high pressures assures that the equipment is safe and reliable under extreme conditions.
