Electrical Power Supply 1-30

Question 1

The generator is how many volts/amps?

Answer 1

28 VDC, 300 amp

Question 2

The battery is how many volts/amps?

Answer 2

24 VDC, 42 amp

Question 3

The aux battery is how many volts/amps?

Answer 3

24 VDC, 5 amp

Question 4

The generator needs to supply a minimum of

_______ to charge the battery.

Answer 4

25 volts

Question 5

The generator control switches, located in each cockpit, are _______ held on and ________interlocked,

Answer 5

magnetically ; electrically

Question 6

Moving the generator switch to ON in either cockpit turns generator power on.

Answer 6

True

Question 7

While control of the generator switches is being transferred, power remains momentarily stops.

Answer 7

False.

Question 8

If the generator malfunctions in flight, what can you do?

Answer 8

the generator may be reset with the generator reset button,

Question 9

Besides pressing the generator reset button, located in either cockpit, how can you reset the generator?

Answer 9

By cycling the GEN switch off and back on.

Question 10

If the red GEN annunciator illuminates, what is automatically shed?

Answer 10

the air conditioning is the only equipment automatically shed.

Question 11

The battery provides power for engine starts and is capable of powering all electrical systems except?

Answer 11

air conditioning.

Question 12

The battery control switches, located in each cockpit, are _______ held on and ________interlocked,

Answer 12

magnetically ; electrically

Question 13

Is there an aux battery switch in both cockpits?

Answer 13

No, only in the front

Question 14

The auxiliary battery power
level may be tested by holding the AUX BAT switch,
located on the front cockpit left console system test panel,
for a minimum of _________

Answer 14

5 seconds

Question 15

In an emergency situation, the auxiliary battery will power the standby instruments, UHF transceiver and backup UHF control,
standby instrument lighting, and FIRE 1 fire warning system for approximately__________

Answer 15

30 minutes.

Question 16

If the AUX BAT test switch does not illuminate, what is indicated?

Answer 16

That the AUX BAT is less than 50% charged

Question 17

External power is distributed on the battery bus and is controlled by the ___________

Answer 17

battery switch

Question 18

How is the aircraft protected from external power over/under voltage.

Answer 18

internally through a voltage sensor

Question 19

Do not connect external power if battery voltage is below ________.

Answer 19

22.0 volts
Connecting external power could cause damage to the
aircraft battery.

Question 20

The BUS TIE switch is in both cockpits?

Answer 20

False. Only in the front cockpit

Question 21

With the BUS TIE switch engaged (NORM position), the generator feeds what?

Answer 21

both generator and battery bus

items.

Question 22

If the bus tie fails, or is set to OPEN, what will illuminate?

Answer 22

the amber BUS TIE annunciator

Question 23

Expect a minimum of ________ of battery power to the battery bus items (with BUS TIE OPEN)

Answer 23

30 minutes

Question 24

If the GEN (BUS) fails but the BUS TIE is normal, what then?

Answer 24

failed, the items on the generator bus will not be powered, but the generator will continue to power the
battery bus and charge the battery.