// LET'S STUDY AVIATION

Let's Study Aviation

Airframe Test A1 and Power Plant Test A4 — pick a subject and test yourself.

1 (1) The platinum and iridium ground electrodes used on fine wire spark plugs are extremely brittle and can be broken if they are improperly handled or adjusted. (2) When gapping massive-electrode spark plugs, a wire gauge should be inserted between the center and ground electrodes while moving the ground electrode in order to avoid setting the gap too close. Regarding the above statements,