rocket tester

smoke rocket

A device which gives off dense smoke; used in a smoke test of sections of piping.
References in periodicals archive ?
Never much of a hobbyist, he'd worked for years as an auto and airplane mechanic, a rocket tester at Rocketdyne, and later as an oil company worker.
The war machine that whipped the Axis shifted gears to become the defense industry, giving birth to aircraft makers, rocket testers and nuclear physicists.