Quiz on Aircraft Electrical Systems

What are the two types of electrical sources in aircraft?

• AC and DC

• AC and Solar

• DC and Battery

• AC and Wind

What is the function of the CSD in aircraft generators?

• To generate static electricity

• To convert AC to DC

• To store electrical energy

• To maintain constant speed

What voltage does the AC generated by aircraft generators typically have?

• 28 VDC

• 12 VDC

• 115 VAC 400 Hz

• 220 VAC 60 Hz

What is the role of a static inverter in an aircraft?

• To charge the battery

• To generate electricity

• To convert DC to AC

• To convert AC to DC

How many transformers are installed in a B737-800?

• 4

• 1

• 2

• 3

What is the primary function of the aircraft electrical system?

• To provide navigation

• To generate and distribute electrical power

• To control flight surfaces

• To monitor fuel levels

What type of battery is commonly used in aircraft?

• Lithium Ion

• Alkaline

• Nickel Cadmium

• Lead Acid

What does the AC Main bus connect to in an aircraft?

• To the DC power source

• To various AC loads

• Only to the static inverter

• Only to the battery

What happens to the transfer bus in case of a generator failure?

• It switches to battery power only

• It disconnects from all sources

• It automatically shuts down

• It connects to the APU or another generator

What is the purpose of the starter circuit in an aircraft?

• To charge the battery

• To activate all electrical circuits

• To monitor fuel levels

• To control cabin pressure