CRJ 200 Systems questions with 100% correct answers with detailed rationales 2026

How long is the aircraft?

87' 1"

How wide is the aircraft from wingtip to wingtip?

69' 8 "

How tall is the CRJ from the ground to the top of the horizontal stabilizer?

20' 8"

How wide is the track between the main wheels?

10' 4"

How large is the APU exhaust danger area?

15'

How large is the radar hazard area?

2'

How large is the intake danger area at idle thrust?

12'

How large is the intake danger area at max thrust?

25'

How large is the exhaust danger area at idle thrust?

Approximately 70'.

How large is the exhaust danger area at max thrust?

Approximately 170'.

How far is it from the ground to the top of the winglet?

9' 6"

How many external emergency lights are there?

8 ( Four per side )

How much pavement is required to make a 180 degree turn?

75'

How many degrees will the nose wheel turn when using the tiller?

70 degrees.

How many degrees will the nose wheel turn using the rudder pedals?

5 degrees.

What is the purpose of the winglets?

The winglets increase aspect ratio, decrease wingtip vorticies, and improve fuel efficiency and performance.

How are the emergency lights powered?

4 rechargeable batteries that last 15 minutes.

How long is the escape rope?

15'

How many doors does the CRJ 200 have, and where are they located?

8 - avionics bay, main cabin, galley service, crew escape hatch, RT & LT overwing emergency, aft equipment bay, & the cargo bay.

Which doors may be used in an evacuation?

The main cabin door, galley service door, escape hatch, & both overawing exits.

What is the weight restriction on the main cabin door?

1000 lbs, or 4 passengers.

Which doors are monitored by PSEU's?

All doors are monitored except for the escape hatch and the aft equipment bay.

What secures the main cabin door?

Pre- Phase four doors have three locking pins, and two cam latches. Phase four doors have 4 pins two per side and two cam locks.

Which doors are plug type doors?

The galley service door, escape hatch, cargo door, avionics bay door, & both overawing exits.

How can you verify that the main cabin door is closed?

The green alignment marks on the locking pins and cam locks. Pre-phase four doors will also indicate locked when the handle is stowed.

Can the escape hatch be opened from the outside?

Yes.

Can the overawing exits be interchanged?

No.

Can the overawing exits be opened from the outside?

Yes.

Can the aft equipment bay be opened if the aircraft is pressurized ?

Yes, the aft equipment bay is not a pressurized compartment.

How can you verify that the galley service door is closed?

There is a green indicator below the inside handle.

Can any of the doors be controlled from the flight deck?

The escape hatch can be manually controlled from the flight deck. All others may be monitored only on EICAS.

What external lights make the aircraft visible to other aircraft ?

Nav lights, anti-collision ( strobes ), rotating beacons, and logo lights.

What lights must be on for the flight data recorder to operate?

The strobes, or the beacon.

Where are the strobe lights located?

One on each wing tip and one on the tail.

How many landing lights are there?

4 ( Two in the nose, and one on each wing ).

How many taxi / recog lights are there?

2 ( One in each wing root ).

How are the sidewall and ceiling lights in the cabin controlled?

They are controlled by switches on the flight attendant's panel.

What compartments have service lights?

The avionics bay, aft equipment bay, cargo bay, and nose gear wheel well.

How do you control the floodlight at the forward entrance?

With the dome switch on the flight attendants panel.

What does the " Auto " position of the NO SMKG and SEAT BELTS switch do?

In the auto position, with the flaps extended, the seat belt sign will illuminate. When the gear is extended both lights illuminate. When the cabin altitude reaches 1000' both signs illuminate.

What system activates the NO SMKG and SEAT BELTS sign when cabin altitude reaches 10000'?

CPAM.

With the emergency switch in "Auto", when will the emergency lights come on?

When essential DC or essential AC power is lost.

What will happen if the emergency lights are in the " Off" position, with power on the aircraft?

You will get an EMER LTS OFF caution message accompanied by a single chime.

What do the emergency lights consist of?

The exit signs, ceiling emergency floodlights, floor level emergency floodlights, floor track emergency lights or illumine cent strips, floor level exit signs, and exterior emergency lights.

What is the max pressure of the flight deck oxygen bottle ?

1850 psi

Where is the flight deck oxygen bottle located ?

Under the floor on the right side of the flight deck

Where can you read the flight deck oxygen pressure ?

On EICAS, and also on the gauge in the oxygen services panel

What is the source of supplemental oxygen for the flight crew?

A pressurized oxygen cylinder provides emergency oxygen to the three masks on the flight deck.

What are the three modes of the oxygen masks?

Normal, 100%, and Emergency.

When do you get the " OXY LO PRESS " caution message?

When the oxygen pressure is at or below 1410 psi.

A white flag in view on the oxygen mask indicates what?

The oxygen shutoff valve is open.

How can you confirm oxygen flow to the mask?

A yellow cross on the oxygen blinker.

When will the passenger oxygen masks automatically deploy?

When CPAM detects a cabin altitude of 14,000 ' or greater.

At what altitude will the crew oxygen masks automatically provide 100% oxygen?

30,000 '.

How long does the passenger oxygen last?

13 minutes.

How many medical oxygen bottles are on board?

2 ( Each bottle is charged to 1500-1800 psi ).

Where is the oxygen services panel?

The right side of the forward fuselage.

How can you identify an oxygen overpressure?

The green oxygen blow out plug on the fuselage will be missing. EICAS pressure will read 0 psi, and you will have an " OXY LO PRESS" caution message.

How can you manually deploy the passenger oxygen masks?

By pressing the PASS OXY switch light.

How do you purge the oxygen mask of smoke?

By pressing the emergency control knob on the mask.

What controls the automatic dropping of the passenger masks?

CPAM ( cabin pressure acquisition module ).

What provides oxygen to the passenger masks?

Chemical oxygen generators that provide 13 minutes of oxygen once the rubber tubing on the mask has been pulled.

Why is it dangerous to touch an oxygen generator when in use?

They become very hot.

How many potable water tanks are on the aircraft?

2 ( One forward and one aft ).

Where are the controls for the potable water systems?

In the galley.

Is potable water heated?

Yes. Both tanks have heaters. The drain masts, drain lines and hoses to the galley are also heated.

Where are the fill ports for the water systems?

On the right side of the fuselage. One forward, and one aft.

Where is the access panel for the waste system located?

On the right rear of the fuselage.

How many volts are required to start the APU?

22

What are the APU start cycle limits using ground power?

2 X 15 seconds ON - 20 minutes OFF. 2 X 15 seconds ON - 40 minutes OFF.

What are the APU start cycle limits using the APU battery?

2 X 30 seconds ON - 20 minutes OFF. 2 X 30 seconds ON - 40 minutes OFF

When does the white APU starter message go out?

At 50 % rpm.

At what speed will the AVAIL light illuminate?

At 99 % rpm.

What conditions will cause the APU to automatically shut down in flight?

Fire, Over speed, RPM signal loss, Loss of DC power, ECU loss, or a slow start ( less than 50% for 60 seconds ).

What conditions will cause the APU to automatically shut down on the ground?

Fire, Over speed, RPM signal loss, Loss of DC power, ECU loss, Slow start, Over temp, Over current, Low oil pressure, High oil temp,EGT signal loss, or loss of door signal.

What four things happen when you press the APU power fuel switch?

The APU SOV opens, the APU Door opens, APU gauges appear, and the APU in BITE status message appears.

Starting the APU requires which battery?

Both ( The APU ECU gets power from main battery, and APU starter gets power from APU battery ).

What is the maximum time you can leave an aircraft with the APU running?

5 minutes.

What does the APU GEN OFF message indicate?

The APU has been at 100 % rpm for 30 seconds or more and the generator switch is OFF.

What is the APU's primary function?

To drive the 30 KVA electric generator.

When will the APU starter auto cut off?

At 50% rpm on a normal start, or with a start cycle greater than 60 seconds with the rpm below 50%.

The APU ECU protects the APU compressor against surge by opening and closing what?

The APU variable diffusers.

The APU requires which busses to start?

The APU battery direct bus ( Apu door, and starter ) The Main battery direct buss ( ECU interface ) and the battery buss ( PSEU's and APU ECU ).

The APU modulates APU bleed air through what valve?

The APU LCV ( load control valve ).

The APU ECU ensures priority is given to what APU function?

Electrical loads.

What will happen if you have an APU fire on the ground?

The APU will shut down, the APU Firex bottle discharges, and an external horn will sound.

Where does the APU get its fuel?

It is fed fuel directly from both main tanks via the APU/XFLOW pump.

Will the APU shut down in flight for an over temp?

NO.

APU provides pneumatic air for what two things?

Engine starts and air conditioning.

What is the max altitude for using APU bleeds?

15,000'.

When do the igniters energize during the APU start cycle?

They energize at 4% rpm, and remain on until 95% rpm.

To get APU bleed air to the right pack what do you need to do ?

Open the 10th stage ISOL valve and the LCV

Why do you not wait between pushing the APU PWR/FUEL switchlight and the start switchlight, when starting the APU in flight ?

Air entering the door will spin the turbine if it reaches 8% before the start switch is pushed the ECU will not allow the APU to start

What is the max altitude for using APU bleed air to start the engine ?

13,000 '

What does the APU LCV valve modulate ?

variable geometry diffusers

What is the max rpm for the APU ?

107% above that shutdown occurs

What is the max ITT for the APU ?

743 degrees C is the beginning of the red arc, temp may rise as high as 974 degrees during start with less than 50% rpm

What is the purpose of the APU ECU ?

It controlls all functions of the APU

What powers the APU ECU ?

The APU PWR/FUEL switchlight

What maintains a constant 12000 APU rpm for the generator ?

APU gear box