Exam Questions And Answers |
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With the battery switches are OFF, what will be powered? - Answer- • Hot battery bus 1
and 2
What position should the emergency lights (EMER LT) switch be in? - Answer- • OFF
What if the EMER LT switch is in AUTO, and no lights are on? - Answer- • Emergency
light batteries are dead
In AUTO, What makes emergency lights come on? - Answer- • Loss of normal electrical
power
How long are emergency lights batteries good for? - Answer- • 10 minutes
How can you tell if external AC power is available? - Answer- • EXT POWER switch
says "AVAIL"
Should you select external power immediately after turning the batteries on? - Answer- •
NO, Wait for EICAS messages to appear
What is the minimum battery voltage? - Answer- • 22 Volts
If the battery voltage is less than 22 Volts but more than 21 Volts, where can you find
how long the batteries will take to charge? - Answer- • CFM
Below what battery voltage would maintenance have to be notified? - Answer- • 21 Volts
When should you check the battery voltage? - Answer- • Check it before AC power is
established
What should you do if you have more display units than just 2 and 3 powered? -
Answer- • Notify maintenance
Why is this an issue? - Answer- • If you lost AC power in flight and more than 2 display
units were powered, it would cause excessive battery drain.
What should you do before starting APU? - Answer- • Verify you have required battery
voltage • Check fire extinguisher system.
, Describe the fire test. - Answer- • Press and hold Test button (less than 10 seconds or
APU will shut down)• Six lights on overhead: 2 fire handles, 2 cargo, APU extinguisher,
APU red bar in emergency stop button.• Five EICAS messages: Eng 1 & 2 Fire, APU
Fire, Cargo Fwd and Aft fire• Four other lights: FIRE in ITTs, Master Warnings both
sides • Two aural alerts: Fire bell, triple chime
Describe the proper APU start sequence. - Answer- • Turn the APU start switch to ON,
wait for numbers to populate on the EICAS. This indicates the APU FADEC is on and
ready to control the APU.
During APU start what does BATT 1 supply power to? - Answer- • FADEC and EICAS
During APU start what does BATT 2 supply power to? - Answer- • APU start BUS
If the APU is on and ground power is plugged in, which has priority? - Answer- • APU.
GPU light changes back to AVAIL
Where does the APU get its fuel? - Answer- • From the right fuel tank
Where does the APU get its fuel before the right engine is running? - Answer- • AC or
DC fuel pump, depending on available electrical source
Where does the APU get its fuel after the right engine is running? - Answer- • Motive
flow fuel pump
Can you get fuel to APU from the left tank? how? - Answer- • Yes. Cross feed it to the
right tank using AC fuel pump 1.
When are we not allowed to use fuel crossfeed? - Answer- • Must be OFF during takeoff
and landing
What causes the electric P-BIT to start? - Answer- • Upon application of AC power to
the aircraft
What will interrupt the Electrical P-BIT? - Answer- • Interruption of AC power • Flight
mode control panel switches cycled • Any hydraulic electrical pump powered
What causes the hydraulic P-BIT to start? - Answer- • Pressurization in all three
hydraulic systems
What will interrupt the Hydraulic P-BIT? - Answer- • Any flight control surface movement
Which flight control is not Fly-By-Wire? - Answer- • Ailerons (cables from yoke to PCUs)
If the parking brake handle is pulled, how do you know if there is pressure in the brake
lines? - Answer- • The EMERG/PRKG BRAKE light will be illuminated "ON"