CRJ900 Systems Flight Controls

Question 1

What aides the crew in directional control during a jammed rudder condition

Answer 1

Rudder system anti-jam/breakout mechanisms

Question 2

The purpose of the aileron flutter dampers are

Answer 2

Prevent control surface flutter when hydraulic power (fluid) is lost to the PCU’s

Question 3

What flap settings are used for takeoff

Answer 3

8 and 20 degrees

Question 4

The elevators, rudder and ailerons are

Answer 4

manually controlled and hydraulically actuated

Question 5

What is the purpose of the aileron bungee breakout switch

Answer 5

Provide automatic onside MFS control to operable circuit during aileron PCU runaway

Question 6

Who/what has the highest priority when trimming the horizontal stabilizer trim

Answer 6

Captain

Question 7

The horizontal stabilizer trim limits are

Answer 7

+2 degrees to -13 degrees

Question 8

A SPOILERON ROLL caution message accompanied by amber ROLL SEL lights on the glare shield indicates

Answer 8

the roll disconnect handle has been pulled, but the flying pilot has not established use of the second spoileron

Question 9

What are the selectable flap postions

Answer 9

0,1,8,20,30,45 degrees

Question 10

What message appears on EICAS if one flap motor fails

Answer 10

Flaps Halfspeed

Question 11

During landing or rejected takeoff, how does the multifunction spoilers deploy logic differ from the ground spoilers deploy logic

Answer 11

Multifunction spoilers deployment requires R and L main landing gear WOW

Question 12

In the event of total AC electrical power failure, the flight controls will remain operational because of ACMP 3B is powered by the ____ bus

Answer 12

ADG

Question 13

Each elevator is hydraulically powered by ____ PCU’s

Answer 13

3

Question 14

A clacker will activate when the horizontal stabilizer is in motion for more than

Answer 14

3 seconds