2101 - MIDTERM Flashcards
It consist of magnetic circuit consists of a permanent multi-pole rotating magnet, a soft iron core, and pole shoes
Magneto circuit
Low-voltage is generated in the magneto and flows to the primary winding of a transformer coil located near the spark plug.
Low tension magneto
The secondary coil is made up of a winding containing approximately how many turns?
13000 turns
A magnetic field consists of invisible lines called
Lines of magnetic flux
The magnetic field produced by a conductor by sprinkling iron filings on a plate that surrounds a current-carrying conductor.
Electromagnetism
if a conductor is moved through the lines of magnetic flux that pass between the poles of a magnet, a flow of electrons is induced in the conductor. This is called _______
Electro Magnetic inductor
The ends of the magnet are called
Poles
Is anelectrical generatorthat convertsmechanical energytoelectrical energyin the form ofalternating current.
Alternator
The magnetic circuit consists of a permanent multi-pole rotating magnet, a soft iron core, and ____
Pole shoe
Before a spark plug can be removed, the ignition harness lead must be_____
Disconnected
Flange-mounted magnetos are attached to the engine by a flange around the driven end of the rotating shaft of the magneto.
Magneto mounting system
The number of lines of flux that loop through a magnet is an indication of a magnet’s strength. One line of flux is called one.
Maxwell
- What is the meaning of EMF.?
Elecrtromotive force
A special type of engine-driven alternate current (AC) generator, uses a permanent magnet as a source of energy.
Magneto
A type of starter with a kinetic energy is energy possessed by a body by virtue of its state of motion, which may be movement along a line or spinning action. In the inertia starter, energy is stored slowly during an energizing process by a manual hand crank or electrically with a small motor.
inertia starter
Who is the English inventor who discover electric current flowing through a conductor creates a magnetic field around the conductor, there was considerable scientific speculation regarding whether or not a magnetic field could create current flow.
Michael faradays
The north poles magnet is labeled as___
N
The measure of ease with which lines of flux travel through a material is referred to as a material
Permeability
The ______consists of a set of breaker contact points, a condenser, and an insulated coil.
Primary electrical circuit
Spark plugs should be removed for inspection and servicing at the intervals recommended by the____
Manufacturer
One rotating magnet and a cam are common to two sets of breaker points and coils. Two separate distributor units are mounted in the magneto
Single and Dual high tension system magneto
The South poles magnet is labeled as___
S
Consists of two brushes, two brush springs, and brush holders.
Rotor
Is a method of starting aninternal combustion engine, usually on small machines, such aslawn mowers,chainsaws,ultralight aircraft, smalloutboard motorsand portableengine-generators.
pullcord starter
It can be divided, for purposes of discussion, into three distinct circuits: magnetic, primary electrical, and secondary electrical circuits
High tension magneto
Also Known as Coffman starter
Shotgun starter
An alternator rotor consists of a wire coil wound on an iron spool between two heavy iron segments with interlacing fingers.
Rotor
It is anaircraft magnetothat incorporates a single drive source powering two magnetos
Dual
It contains the ignition harness contains an insulated wire for each cylinder that the magneto serves in the engine.
Ignition Harness
The type of switch used varies with the number of engines on the aircraft and the type of magnetos used.
Ignition switch
It is any piece of equipment that converts mechanical energy into electrical energy by electromagnetic induction. Generator
Generator
It is one way to determine the direction of the induced EMF.
Left hand rule
As the rotor turns, the load current is induced into stationary stator coils
Starter
The magneto generates electrical power by the engine rotating the permanent magnet and inducing a current to flow in the ____
Coil winding
The circuit contains the secondary windings of the coil, distributor rotor, distributor cap, ignition lead, and spark plug
Secondary electrical circuit
8 TYPES OF AIRCRFAFT STARTER
Inertia
Direct hand cranking
Pullcord
Coffman
Electrical
Pneumatic
DC electric motor
Starter generator
two ways to complete the primary circuit
Through close breaker points to ground
Through close ignition switch to ground
In the inertia starter, energy is stored slowly during an energizing process by a manual hand crank or electrically with a small motor.
TRUE
The starter must turn the engine up to a speed that provides enough electricity through the engine for fuel to be ignited. Then, the starter must continue to help the engine accelerate to a self-sustaining speed. Turbine engine starters have a critical role in starting of the engine.
FALSE
Reciprocating engines need only to be turned through at a relatively slow speed until the engine starts and turns on its own
TRUE
If the starter turns the turbine engine up to a self-sustaining speed, the engine start process will not be successful.
TRUE
A starter is an electromechanical mechanism capable of developing large amounts of mechanical energy that can be applied to an engine, causing it to rotate. Reciprocating engines need only to be turned through at a relatively slow speed until the engine starts and turns on its own
TRUE
