6310 Quiz 1

AC Generation systems offer many advantages but which answer is correct?

• Easy to INVERT

• Good power to weight ratio

• Good for Load sharing

• Increased Servicing Requirements

The International standard for aircraft DC System voltages is?

• 24 Amps

• 32 Volts dc

• 28 Volts dc

• 24 Volts dc

5th & 6th Generation aircraft have what type of power generation system alongside the standard 200/115Vac, 400 hz power generation system

• 270Vac

• 27Vdc

• 270dc

• 27Vac

With reference to DC Generators, which one of the following statements is correct ?

• Easier to maintain than AC generators

• produce output levels up to 20 to 30 Amps at 24V

• Normally rated between 6kW to 9kW

• Are normally Brushless

A Transformer Rectifier Unit (TRU) performs what function

• Converts 270 Vdc into 28Vac

• Converts dc to ac

• Converts 115Vac to 28Vdc

• Steps down dc voltages

The Generator is isolated from the busbar by?

• Removing the supply voltage

• Removing the control unit

• Removing the generator

• removing the excitation field

A Circuit Breaker protects against?

• Over voltage

• Over Current

• Under Current

• Over Frequency

Busbars are made from

• A Thick Gold Strip

• A Thick Titanium strip

• A Thick Platinum Strip

• A Thick Copper Strip

How are Busbars are normally categorised (Select one or more answers)

• Important

• Essential

• Service

• Emergency

Bonding and Earthing ensures?

• The airframe is at Zero Volts potential

• Structures and components are Joined together

• All cables are joined together

• Static electricity can be generated.