Learning

What does an ignition system use to retard the spark for starting?

Impulse Coupling

Starter Vibrator

Starter Relay

Both 2 and 3

Please select an option. Incorrect One uses as external box connected to battery power and the other uses flyweights.

What is the main reason the ignition harness employs shielded wires?

To keep the spark from arcing

To prevent the wires from the heat coming off of the engine

To reduce radio noise

To prevent the wires chafing

Please select an option. Incorrect The electronic signal produced by magnetos can be picked up by other avionics

What are the scheduled maintenance intervals for magnetos produced after June 2015?

100 hours / Annual Inspection

500 hours

TBO / 12 year overhaul or replacement

All of the above

Please select an option. Incorrect Magnetos are required to be inspected at multiple intervals throughout its time in service.

What is one function of the P-Lead?

To provide the magneto power

To provide a means of grounding the magneto

To intensify the spark

To prevent arcing

Please select an option. Incorrect With the P-Lead disconnected a magneto will produce a spark when rotated

What is the max allowable RPM drop when operationally checking magnetos?

200 RPM

150 RPM

75 RPM

50 RPM

Please select an option. Incorrect The RPM drop must be LESS than 200

What is a function of the capacitor?

Retard the spark

Reduce/ prevent p-lead noise

Intensify the spark

Prevent arcing

Please select an option. Incorrect A capacitor can act as a filter in a power supply circuit

What is tolerance magneto timing?

Plus or minus 4 degrees

Plus or minus 3 degrees

Plus or minus 1 degree

There is no tolerance

Please select an option. Incorrect There is a very small tolerance for magneto timing.

What does the starter vibrator use as a power supply?

The magneto

It does not have one

Independent battery inside of the unit

Aircraft battery power

Please select an option. Incorrect The starter vibrator pulsates battery voltage to boost ignition energy

What is a possible result of improper magneto timing?

Kickback

Hard starting

Rough idle

All of the above

Please select an option. Incorrect Improper magneto timing can lead to multiple engine issues

What is the reason for pressurizing some magnetos?

To prevent arcing at high altitudes

To increase internal component longevity

Prevent radio interference

To help cool the magneto

Please select an option. Incorrect Turbo chargers employ pressurized magnetos since those engines often operate in much thinner air.

Test