End of Chapter Electrical Quiz

Question 1

List three functions of the GCU:

Answer 1

• Starter Cutoff
• Voltage Regulation
• Feeder Fault / Ground Fault Protection

Question 2

To charge the aircraft battery with a ground power unit, the battery master switch must be in the BATT position: True/False

Answer 2

False

Question 3

What is the minimum battery voltage required for a battery start?

Answer 3

24 volts minimum

Question 4

What are the starter-generator start limitations:

Answer 4

Three starts in 30 minutes, with a 60 second rest between each start

Question 5

List the items on the emergency busses for the CJ1:

Answer 5

• Nav / RMI 2
• Comm 1
• DG 2 (Compass) (internal invert)
• Cockpit Floodlights

Question 6

What is the maximum amperage limitation for the starter-generators?

Answer 6

300 Amps

Question 7

The crossfeed bus allows for logical grouping of items on the right and left main circuit breaker panels: True/False

Answer 7

Allow logical grouping of all CBs for a certain system together on one panel
(example: all engine instrument CBs on the right CB panel)

Question 8

The battery disconnect switch located inside of the cockpit on the captain’s side oxygen panel can be utilize to disconnect the battery from the hot battery bus after shutdown: True/False

Answer 8

False

Question 9

The BATT O’TEMP annunciator light will illuminate at what temperature?

Answer 9

145-160F on steady. +160, Flashing.

Question 10

At what % N2 will the SG disconnect the start and begin generation?

Answer 10

At 45% N2, an integral tach-generator speed sensor circuitry will
discontinue starting and begin power generation.