Question

The interval from 10% maximum initial pressure (or thrust) to web burnout, with web burnout usually taken as the aft tangent-bisector point on the pressure–time trace is called as

• A. burning rate
• B. ignition time
• C. action time
• D. burning time

Hint:

Web burnout marks the end of useful combustion, and burning time is vital for performance prediction.

Answer 1

The Correct Option is D

Burning time refers to the duration during which the propellant grain is actively combusting, measured typically from the point of significant thrust onset (around 10% pressure) to web burnout.