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Avionics > Alternator vs Generator > Flashcards

Alternator vs Generator Flashcards

1
Q

a mechanical device which converts mechanical energy to either AC or DC electrical energy.​

A

Generator​

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2
Q

​Output Current​
A - always induces an alternating current.​
B - can generate either alternating or direct current.​

A

A - Alternator
B - Generator

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3
Q

Energy Efficiency​
A - very efficient
B - considered less efficient.​

A

A - Alternator
B - Generator

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4
Q

Output
A - have a lower output
B - have a higher output

A

A - Alternator
B - Generator

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5
Q

Energy Conservation​
A - use all the energy that is produced, so they conserve less energy.​
B - use only the required amount of energy and thus, it conserves more energy.

A

A - Generator
B - Alternator

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6
Q

Polarization After Installation​
A - Polarization is not required
B - need to be polarized after installation

A

A - Alternator
B - Generator

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7
Q

Magnetic Field​
A - the magnetic field is stationary or fixed where the armature winding spins.
B - The magnetic field is rotating inside the stator

A

A - Generator
B - Alternator

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8
Q

Input Supply​
A - takes input supply from the stator.​
B - takes input supply from the rotor.​

A

A - Alternator
B - Generator

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9
Q

RPM (Rotation Per Minute) Range​
A - have a low range of RPM
B - have a wide range of RPM

A

A - Generator
B - Alternator

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10
Q

Voltage Generation​
A - produce voltage at all times
B - produce voltage only when needed.

A

A - Generator
B - Alternator

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11
Q

Size
A - smaller
B - larger

A

A - Alternator
B - Generator

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12
Q

Brush Efficiency​
A - last lesser
B - last longer

A

A - Generator
B - Alternator

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13
Q

Charging of a Dead Battery​
A - will never charge
B - can be used to charge

A

A - Alternator
B - Generator

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14
Q

Uses​
A - widely used to produce large-scale electricity.​
B - mainly used in the automobile industry as a charging system for the battery.​

A

A - Generator
B - Alternator

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15
Q

allows an aircraft to operate autonomously without reliance on ground support equipment such as a ground power unit, an external air-conditioning unit or a high pressure air start cart.​

A

APU- Auxiliary Power Unit​

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16
Q

The APU is a small jet engine which is normally located in the _______ of the aircraft but, in some cases, is located in an __________

A

tail cone, engine nacelle or in the wheel well.

17
Q

It can also be used as a source of ________ for starter assist for an inflight engine relight or to power the air-conditioning packs in the event conditions or company policy dictate that the takeoff be conducted with the engine bleed turned off.​

A

Bleed Air

Avionics (6 decks)

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