After activation, the M762 and M767 series fuzes have a service life of how many days?

After activation, the M762 and M767 series fuzes have a service life of how many days?

• A. 7 days
• B. 15 days
• C. 30 days
• D. 365 days

Answer: (B)

After activation, these fuzes are guaranteed to stay safe and operable for a finite period, which is fifteen days. This limited service life exists because the arming and timing components are only reliably safe for a set window once the fuze has been armed and exposed to field conditions. Beyond fifteen days, factors like corrosion, seal degradation, or drift in the timing mechanism can make operation unsafe or unpredictable, so the item is considered beyond its safe service life and should be removed or replaced. The other durations either cut the window too short for normal use or extend exposure too long, increasing safety risks without improving reliability.

After activation, these fuzes are guaranteed to stay safe and operable for a finite period, which is fifteen days. This limited service life exists because the arming and timing components are only reliably safe for a set window once the fuze has been armed and exposed to field conditions. Beyond fifteen days, factors like corrosion, seal degradation, or drift in the timing mechanism can make operation unsafe or unpredictable, so the item is considered beyond its safe service life and should be removed or replaced. The other durations either cut the window too short for normal use or extend exposure too long, increasing safety risks without improving reliability.