Midterm 1

Question 1

What does Electrical System provide powers?

Answer 1

• lighting
• navigation
• communication
• engine

Question 2

What is the importance of aircraft electrical systems?

Answer 2

-ensures safe operation
-enables navigation
-support passenger comfort
-critical for ENGINE AND FUEL CONTROL

Question 3

3 types of aircraft electrical systems

Answer 3

1. DC SYSTEM
2. AC SYSTEM
3. HYBRID SYSTEM

Question 4

A type of AES. Common in smaller/ older aircraft and powered by batteries and generators

Answer 4

DC SYSTEM

Question 5

A type of aircraft electrical system used in modern modern and larger aircraft

Answer 5

AC SYSTEM

Question 6

A combined AC and DC system for optimal performance

Answer 6

HYBRID SYSTEMS

Question 7

5 major components of aircraft electrical system

Answer 7

Generator and alternators,
Batteries
Transformer
Wiring and Bus bars
Circuit breaker and relays

Question 8

Any piece of equipment that converts, mechanical energy into electrical energy by electromagnetic induction

Answer 8

Generators

Question 9

Auxiliary Power Unit generate power on ground

Engine-driven generators/ alternators produce power

Answer 9

Power Generation

Question 10

Busbar distribute electrical power to critical and non-critical systems

Answer 10

Power distribution

Question 11

Emergency power during generator failure/ start up

Answer 11

Batteries

Question 12

3 types of aircraft battery

Answer 12

LEAD-ACID (older systems)
NICKEL-CADMIUM (modern aircraft)
Lithium-ion (new generation aircraft)

Question 13

4 maintenance

Answer 13

ROUTINE CHECKS
SYSTEM SAFETY
REDUNDANCY
GROUNDING AND SHIELDING