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Flashcards in Systems Deck (43)
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1
Q

What doors are on overhead doors panel

A

Fwd and aft entry
Fed and aft service
Left and right fwd over wing
Fwd and aft cargo

2
Q

Length of 737-800

A

129.5

3
Q

Wingspan 737-800

A

117.5

4
Q

Which flight deck windows can be opened?

A

Number 2 windows the captains can not open from the outside

5
Q

How many emergency exits are there on 737-800

A

10

6
Q

How many slides are there

A

One single lane on each of 4 cabin doors

Opening it with the slide armed inside automatically deploys slide

7
Q

What emer equipment is in flight deck

A
One pbe
Two escape ropes 
One halon
One crash axe
One elt
3 O2 masks 
3 life vests
8
Q

Describe emergency exit system

A

28 v dc system, automatically locks the emergency over wing exits flight locks engage on takeoff and remain engaged through landing or when dc power is lost

9
Q

Emer equipment back of plane

A
Emk
Medical accessory pouch 
Aed
3 first aid kits 
2 halons 
2 waters 
2 pbe 
2 megaphones 
5 flash lights 
Life jackets 
3 life rafts 
Elt
10
Q

Where is crew O2 indication?

A

Aft overhead panel

11
Q

Pax O2 system

A

Cabin alt 14000 auto

Controls are on overhead panel normal is auto selecting on activates

12
Q

Runway turnoff switch

A

Inboard lights with the landing lights

13
Q

When will emer lights automatically illuminate

A

If switch is armed and electrical power to dc bus 1 fails or ac power is turned off

14
Q

Can the flight deck emer light switch be overridden

A

Yes by pushing on the emer exit lights switch on the aft flight attendants panel

15
Q

How many batteries does the 737 have

A

2

16
Q

When will an idg disconnect

A

When the temp of oil gets to high

17
Q

What does the drive light mean on the idg panel

A

Low oil pressure or an under frequency condition

18
Q

What is ac transfer bus one connected to

A

Main bus 1
Galley bus c and d
Ac ground service bus 1
Ac standby bus

19
Q

What is ac transfer bus 2 connected to?

A

Main bus 2
Galley bus a and b
Ground service bus 2

20
Q

What happens if a ac source supplying power to a transfer bus fails

A

It can be powered by any other ac power source through two bus tie breakers

21
Q

Are the bus tie breakers manual or automatic

A

Automatic but they can be manually operated by bus trans switch

22
Q

What does the source off light on the electrical panel indicate?

A

No source has been manually selected or the manually selected source has been disconnected

23
Q

What is the automatic on line featur of the electrical system

A

If the aircraft takes off with the apu running and the apu is supplying power to the ac transfer busses when it fails or is turned off the btbs transfer the electrical load to the engine generators

24
Q

What do the ground service busses power?

A

Power to the aircraft cabin as well as the battery chargers

25
Q

When is the ground service switch in the cabin overridden?

A

When both ac transfer buses are powered

26
Q

How many trus are there?

A

3

27
Q

When does the tr unit light illuminate in flight and on the ground

A

In flight when tr 1 has failed or when tr2 and tr3 have failed
On the ground when any of them have failed

28
Q

What are the batteries called

A

Main and auxiliary

29
Q

Where are the batteries located

A

E and e compartment

30
Q

What is the purpose of the main battery

A

Supplies electrical power to start apu or engines

31
Q

What is the purpose of the auxiliary battery

A

Operates in parallel with the main only during use or standby power at all other times it is isolated from the electrical system

32
Q

What is the normal voltage range for the batteries

A

22-30 volts

33
Q

What does bat discharge light mean

A

Excessive battery discharge is detected

34
Q

What are the three busses connected to the battery

A

Hot battery bus
Switched hot battery bus
Battery bus

35
Q

Which bus is always powered

A

Hot battery bus

36
Q

What happens when battery switch is selected on

A

All battery busses are powered and switching of standby electrical system to battery power is provided with the loss of normal power

37
Q

describe the standby power system

A
Provides power when all generators fail automatic system provides standby power for minimum of 60 mins.   
Powers hot batt bus 
Switched hot batt bus 
Dc standby bus 
Ac standby bus through an inverter
38
Q

What does the Amber elec light mean

A

On the ground only indicates a fault kin the dc power system or the stand by power system

39
Q

Standby power switch in auto

A

Automatic switching from normal to standby power of power is lost from ac transfer bus one or do bus 1

40
Q

Where are there fire detection and extinguishing systems

A

Engines apu cargo lav

41
Q

Where is the outside apu fire control panel

A

Remote control panel located in the right main wheel well

42
Q

How does engine overheat and fire detection work

A

Two gas pressure loops that vary based on temperature the detect overheat if they get warm and fire if they get warmer

43
Q

What happens when one of the overheat detection loops fails

A

The remaining one acts as single loop there will be no indications if both fail the fault light illuminates