Test on Aircraft Engine Ignition Systems
Aircraft Engine Ignition Systems: A Comprehensive Guide
Test: Aircraft Ignition Systems
20 questions
Question 1: There is a danger of cracking the insulation if spark plugs in an aircraft engine are put in too tight.
A. Ano
B. Ne
Explanation: If spark plugs are put in too tight, there is a danger of cracking the insulation.
Question 2: Are three igniters typically used in most turbine engines?
A. Ano
B. Ne
Explanation: Most turbine engines use two igniters.
Question 3: Pressurized magnetos are used on most reciprocating-engine-powered aircraft that fly at high altitudes because less dense air is a more effective insulator for high voltage.
A. Ano
B. Ne
Explanation: Pressurized magnetos are used because pressurized air is a better insulator than less dense air, preventing high voltage from arcing across to the wrong electrode.
Question 4: Only one igniter is used in most turbine engines.
A. Ano
B. Ne
Explanation: Most turbine engines use two igniters.
Question 5: Pressurizing the distributors in magnetos helps prevent high voltage from arcing across to the wrong electrode.
A. Ano
B. Ne
Explanation: Pressurized magnetos are used on most reciprocating-engine-powered aircraft that fly at high altitudes. By pressurizing the distributors, the high voltage is kept from arcing across to the wrong electrode, which would otherwise cause vibration and loss of engine power. Pressurized air acts as a better insulator than less dense air.