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A&P Airframe Oral Practice Questions > Assembly & Rigging > Flashcards

Flashcards in Assembly & Rigging Deck (26)
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1
Q
  1. What are three types of commonly used flight control systems.
A

Cable
Push pull tubes
Torque tube systems

2
Q
  1. What is used in large metal aircraft to keep control cable tension within acceptable limits?
A

Cable tension regulator

3
Q
  1. What is a fair lead?
A

Cable guide deflects straight run cables around structures

4
Q
  1. How much cable deflection is acceptable due to fairlead?
A

3 degrees

5
Q
  1. Where does failure of control cable occur most frequently?
A

Pulleys and fairleads

6
Q
  1. Which flight control surfaces are considered to primary group?
A

Elevators
Ailerons
Rudder

7
Q
  1. Which flight controls are considered the secondary group?
A

Trim tabs
Spring tabs
Wing flaps
Servo tabs
Anti servo tabs

8
Q
  1. Which flight controls are in the auxiliary group?
A

Trailing Edge Flaps
Slats
Slots
Speed Brakes etc.

9
Q
  1. What is a balance tab?
A

Aux control with fixed linkage. When control surface is moved one way the balance tab moves opposite

10
Q
  1. What is a trim tab?
A

Aux control attached to trailing edge of primary control reduces workload on pilot

11
Q
  1. Why is it important for the blades of a helicopter rotor system to be tracked?
A

Reduce vertical vibration

12
Q
  1. What unit on a helicopter is used to compensate for torque created by the main rotor?
A

Tail rotor

13
Q
  1. How do wing flap affect landing speed and approach angle of an aircraft?
A

Decrease speed increases lift = steeper slower landing

14
Q
  1. What is the purpose of the collective pitch control in a helicopter?
A

Changed pitch of Main rotor blades collectively increasing or decreasing lift

15
Q
  1. What is the most efficient way to check a helicopter rotor for dynamic balance?
A

Balance//analyzer computer

16
Q
  1. What control operates the helicopter tail rotor?
A

Anti-torque pedal

17
Q
  1. What are the three axes of an aircraft, and which control surfaces cause the aircraft to move about each axis?
A

Longitudinal - nose to tail - ailerons for roll
Lateral - wingtip to wingtip - elevators for pitch
Vertical - top to bottom center - rudder for yaw

18
Q
  1. When installing an aircraft bolt, what precaution would you take regarding the position of the bolt?
A

Direction of flight
Bolt head top down - vertical
Bolt forward- horizontal

19
Q
  1. How is the propeller torque corrected for during assembly and rigging in some single engine aircraft?
A

The leading edge of stabilizer is offset from centerline

20
Q
  1. What reference publications should be used to rig aircraft, including the control system?
A

Refer to TCDS or Aircraft Specifications

21
Q
  1. What are vortex generators?
A

Reduce airflow separation of airstream that causes stalls

22
Q
  1. What is a servo tab?
A

Cockpit control adjustable tab attached to trailering edge of primary control. Moves opposite direction of control surface aid in moving primary

23
Q
  1. What factors are used to determine the proper cable tension?
A

Size of cable & outside temperature

24
Q
  1. Why do control surfaces need to be statically balanced?
A

Put of balance control can cause sever flutter

25
Q
  1. What is a spring tab?
A

Flight control using spring assist at high speed

26
Q
  1. What tool can be used to measure control surface travel?
A

Protractor