AT202 EXAM 1 UPDATED ACTUAL Exam Questions and
CORRECT Answers
What is polarity? - the relative orientation of poles; the direction of a magnetic or electric field.
(Which way its flowing)
What kind of generator and electrical bus are used on the A380? -
What kind of generator and electrical bus are used on the B747? - Split/Parallel System on B747-
400
Parallel on normal B747
What kind of generator and electrical bus are used on the B727? - Parallel Bus System
How many KVA is 2,562 volt amps? - 25.62 KVA (divided by 1,000)
Why do we use flux when soldering? - It prevents oxidation
Wire gauges? - Bigger number = smaller wire
Smaller number = larger wire
What are the three ways we can manipulate the strength of an electromagnet? - 1. The strength of
the magnetic field
2. The speed of the rotation
3. The number oif coils
, What are the three common methods for starting the engine on a turbine aircraft? - 1. Huffer Cart
2. APU bleed air
3. Starter Generators
Isulator - No room for free electrons (won't allow current)
Plastic, air, glass, teflon
Conductor - Room for free electrons (will allow current)
Gold, silver, copper
Semi-conductor - Somewhere in the middle (exactly half-full), can conduct and can insulate
(depends on circumstances)
Germanium, Silicon, Gallium, Arsenic
Nuclear power plants, Coal Power plants, Aircraft Generators, and Airarcft alternators all
generate what? - AC
What device controls the output (voltage) of an AC generator? How does it work? - Voltage
Regulator: relays and transistors
Transistors are cheaper, lighter, better, MTBF better, more reliable.
CORRECT Answers
What is polarity? - the relative orientation of poles; the direction of a magnetic or electric field.
(Which way its flowing)
What kind of generator and electrical bus are used on the A380? -
What kind of generator and electrical bus are used on the B747? - Split/Parallel System on B747-
400
Parallel on normal B747
What kind of generator and electrical bus are used on the B727? - Parallel Bus System
How many KVA is 2,562 volt amps? - 25.62 KVA (divided by 1,000)
Why do we use flux when soldering? - It prevents oxidation
Wire gauges? - Bigger number = smaller wire
Smaller number = larger wire
What are the three ways we can manipulate the strength of an electromagnet? - 1. The strength of
the magnetic field
2. The speed of the rotation
3. The number oif coils
, What are the three common methods for starting the engine on a turbine aircraft? - 1. Huffer Cart
2. APU bleed air
3. Starter Generators
Isulator - No room for free electrons (won't allow current)
Plastic, air, glass, teflon
Conductor - Room for free electrons (will allow current)
Gold, silver, copper
Semi-conductor - Somewhere in the middle (exactly half-full), can conduct and can insulate
(depends on circumstances)
Germanium, Silicon, Gallium, Arsenic
Nuclear power plants, Coal Power plants, Aircraft Generators, and Airarcft alternators all
generate what? - AC
What device controls the output (voltage) of an AC generator? How does it work? - Voltage
Regulator: relays and transistors
Transistors are cheaper, lighter, better, MTBF better, more reliable.
