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Question 1

What is the purpose of magneto?

Answer 1

Produces high voltage to force a spark to arc across a spark, plug gap

Question 2

What are the three major circuits of a high tension magneto system?

Answer 2

Magnetic, primary and secondary

Question 3

What are the components of a high tension magnetic circuit

Answer 3

rotating magnet, soft, iron core and pole shoes

Question 4

in terms of an engine crankshaft position when does the ignition event occur

Answer 4

A specified number before top dead center on the compression stroke

Question 5

Where is the gap position in a magneto?

Answer 5

Few degrees beyond neutral

Question 6

what is the purpose of the capacitor in a magneto?

Answer 6

Prevent arcing at the points aids in collapsing the magnetic field

Question 7

what happens when a magnetic rotor is in the ego position and the primary breaker points open?

Answer 7

flow to the primary circuit stops a high rate of flux change, occurs, inducing a high voltage in the secondary or the spark plug fires

Question 8

When ignition switches, often, a magnetic system was the condition of the ground circuit

Answer 8

Circuit to ground is complete

Question 9

what is the purpose of using two magnetos in an engine ignition system?

Answer 9

Safety factor and improve combustion efficiency

Question 10

Which moses grounded when the magneto switch is selected to the right magneto

Answer 10

Left magneto circuit

Question 11

what are the three events required to fire a spark plug in a cylinder when its piston is in the prescribed position

Answer 11

magneto and E gap position, breaker, points opening and distributor aligned with the cylinder

Question 12

What is the main concern when preparing a magneto for installation?

Answer 12

Internal timing

Question 13

are turban, engine, spark igniter, generally susceptible to carbon fouling, explain

Answer 13

No, because high energy Sparks, they produce clean off deposits form on the firing end

Question 14

The remaining service life of the brushes typically used in mini starter generators can be determined by visual inspections of what

Answer 14

The amount of wear groove remaining on the brushes

Question 15

What is the function of a duty cycle in a relation to a turban engine ignition system

Answer 15

allows for operation of the ignition system for a given amount of time to be followed by minimum specify, cool down period

Question 16

what are typically the three main components of Turban engine ignition systems

Answer 16

Igniter, exciters, high tension leads

Question 17

need three sources of high volume, low pressure compressed, air, commonly use for starting jet, transport aircraft, equipped with air turban starters

Answer 17

APU, GPU, compressor bleed air

Question 18

Between field and armature, windings and starter generators, which ordinarily receive current from operation in the start mode

Answer 18

Both the field, and the armature received current in the start mode

Question 19

name two parts of a starter generator that commonly require periodic inspections to ensure that they do not wear beyond operational limits

Answer 19

Commutator and brushes