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ERJ > LANDING GEAR AND BRAKES CBT > Flashcards

LANDING GEAR AND BRAKES CBT Flashcards

1
Q

What provides an overview of the Landing gear and Brakes?

A

Hydraulic Synoptic Page

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2
Q

What powers the landing gear and brakes?

A

Hydraulically actuated.

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3
Q

What powers the outboard brakes?

A

Hydraulic System 1.

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4
Q

What powers landing gear?

A

Hydraulic system 2

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5
Q

How do we operate the gear if Hydraulic system 2 fails?

A

With the assistance of the PTU.

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6
Q

What powers the inboard brakes?

A

Hydraulic system 2

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7
Q

What powers nosewheel steering?

A

Hydraulic system 2

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8
Q

What is the Emergency/Parking brake accumulator?

A

A dedicated accumulator that stores hydraulic pressure from system 1 and 2.
Gives us 6 application of Emergency/Parking brake.

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9
Q

Prior to pushback what must the Captain verify?

A

Steering OFF
Brakes released
Nose gear towing light is green

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10
Q

When will the STEER OFF message show on EICAS?

A

Hydraulic System 2 is depressurized.
Steering disconnect switch is pressed.
External Steering disengage is set to DISENGAGE

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11
Q

What are the Landing Gear Position Indications?

A

Green - Down and locked
White - Up and locked
Amber (cross-hatched) - In transit
Red- Disagreement with lever

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12
Q

What does it mean is the Autobrake status is blank?

A

The autobrake is disarmed.

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13
Q

If EMER ACCU pressure is amber, what can be done?

A

Turn on Hydraulic ACMP for system 1 or 2

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14
Q

What is the RTO setting on the autobrake knob?

A

Rejected Takeoff, it is MAXIMUM braking.

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15
Q

How does the Autobrake detect a rejected takeoff?

A

Wheel speed above 60kts and Thrust reversers in IDLE or REV.

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16
Q

When do the autobrakes release the brakes in RTO?

A

at least 20% brake pressure applied
System faults below 60kts
Thrust levers greater than IDLE

17
Q

If attempting to set RTO, and brake pedals are pressed, what will happen.

A

Knob will snap back to OFF

18
Q

After takeoff does the Autobrake knob need to be set to OFF?

A

NO, when weight OFF wheels is sensed, it will automatically snap to OFF.

19
Q

In any autobrake setting, when will it release the brakes?

A

At least 20% brake pressure applied
System faults
Thrust levers greater than IDLE

20
Q

Upon landing when do the autobrakes activate?

A

2 seconds after weight on wheels.

21
Q

What is the slowing rate of each brake setting?

A

LO 2kts/second
MED 4kts/second
HI- 8 kts/second

22
Q

What happens if you accidentally bump the gear lever to up position on the ground?

A

Nothing. the WOW (weight on wheels) sensors mechanically lock the gear lever down.

23
Q

What is the DN LOCK REL button?

A

Down Lock Release, it overrides the down lock protections.

24
Q

When would we use the Landing Gear Warning Inhibit Button?

A

As directed by the QRH

25
Q

What happens when the Alternate Gear Extension Lever is pulled?

A

It releases the hydraulic pressure in the landing gear lines and mechanically releases all landing gear up locks.

26
Q

What is the Alternate gear extension Electrical override switch for?

A

Electronically bypasses the sensors and evaluation computers and extends the landing gear.

27
Q

When setting the parking brake, what indication must we see?

A

EMERG/PRKG BRAKE light illuminates.

28
Q

How many wear pins do the gear have? How do we check them?

A

4 pins per main gear, must be check with the parking brake set.

29
Q

What is the BCM?

A

Brake Control Modules.

30
Q

What protection do the BCMs provide?

A

Antiskid protection - active 10kts or more
Automatic Wheel braking - Stops main gear during retraction
Touchdown protection - Prevents braking with wheel speed above 50kts or 3 seconds after touchdown.
Locked wheel protection - active above 30 kts.

31
Q

What is the steering authority of the rudder pedals?

A

7° left/right with steering engaged.

32
Q

How do we steer if the steering is disengaged?

A

Differential thrust and braking.

33
Q

How is the tiller operated? What is the steering authority?

A

Pressed and held down

Up to 76° at slow speeds

ERJ (24 decks)

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