Electrical Flashcards
An external power unit should be able to provide _______ amps momentarily and ______ amps continuously.
1000 amps
300 amps
An external power unit should be set to a voltage of _____ to _____.
28.0 to 28.4
The BATT position of the voltmeter should indicate at least _______ volts before external power is connected to the aircraft.
20 volts
On the voltmeter, the BATT and CTR selections should indicate at least ______ volts before beginning the Engine Start (battery) checklist.
23 volts
Before starting the left engine while performing the Engine Starting (Battery) checklist, the right loadmeter should indicate a load of ________ % or _______.
50% or less
After the left engine start, with the right engine operating and generator online, the proper indication when the VOLTMETER BUS SELECT switch is selected to the LEFT generator bus is ______ volts.
28 volts
During normal operations with both generators online, the TPL FED position of the bus voltmeter will indicate approximately ______ volt less than the generator voltage.
One volt
Generator loads should be paralleled within _____% during normal operations.
10%
A white ring around the control switch indicates the pilot-controlled equipment that is operational with generators ________ but aircraft battery power ______. This equipment is powered by the center or triple-fed bus.
Offline
ON
The maximum sustained generator load in flight is _____%, provided a minimum of _____% N1 is maintained.
100%
85%
A generator load up to _______% is acceptable when the aircraft is on the ground at a normal low idle speed of _______% N1.
50%
58-59%
During ground operations, observe the following generator limitations:
GENERATOR LOAD: 80% to 85%
MINIMUM N1: _______%
70%
During ground operations, observe the following generator limitations:
GENERATOR LOAD: 50% to 80%
MINIMUM N1: _______%
61%
A voltage indication between ______ and ______ volts AC and a frequency indication between _______ and ______ Hz should be observed during a test of the inverter.
Normal inverter parameters: _______ volts AC and ________ Hz
105 and 120 volts AC
380 and 420 Hz
115 volts AC and 400 Hz
