Which of the following could be considered an equivalent mechanism to an inertial switch for ELT activation?

Prepare for the Communication, Navigation, Position and Warning Test with detailed questions and comprehensive explanations. Enhance your understanding and get ready to excel in your exam!

Multiple Choice

Which of the following could be considered an equivalent mechanism to an inertial switch for ELT activation?

Activation of an ELT during a crash is meant to be automatic, triggered by the event itself rather than by someone’s action. An inertial switch does exactly that: it detects a rapid deceleration or impact and closes its circuit to power the ELT without pilot input. That automatic, event-driven behavior is what makes it the equivalent mechanism among the options. A manual switch requires someone to act, so it’s not equivalent to an automatic crash-trigger. A proximity sensor responds to nearness to an object, not to a sudden deceleration event. A temperature switch activates due to heat, which isn’t related to crash dynamics. So none of these provide the same automatic activation at the moment of impact as an inertial switch does.

Activation of an ELT during a crash is meant to be automatic, triggered by the event itself rather than by someone’s action. An inertial switch does exactly that: it detects a rapid deceleration or impact and closes its circuit to power the ELT without pilot input. That automatic, event-driven behavior is what makes it the equivalent mechanism among the options.

A manual switch requires someone to act, so it’s not equivalent to an automatic crash-trigger. A proximity sensor responds to nearness to an object, not to a sudden deceleration event. A temperature switch activates due to heat, which isn’t related to crash dynamics. So none of these provide the same automatic activation at the moment of impact as an inertial switch does.

More practice questions