Assembaly And Rigging

Question 1

What are the three axes of an airplane

Answer 1

Longitudinal ( roll ) extends through the fuselage from nose to tail , lateral ( pitch ) extends crosswise from wingtip to wingtip, and vertical ( yaw ) passes through the center from top to bottom

Question 2

What are the primary flight controls of an aircraft

Answer 2

Ailerons is roll axis ,elevator is pitch axis , and rudder is yaw

Question 3

Name several secondary flight controls

Answer 3

Trim tab, balance tabs, anti-servo, servo tabs, wing flaps and spring tabs. They help the pilot in moving the controls with flying hands free

Question 4

Name several types of auxiliary flight controls and describe their general purpose

Answer 4

The auxiliary flight controls consist of the various high-lift devices used during low-speed flight such as leading and trailing edge flaps, slats, slots, spoilers, and speed brakes

Question 5

What is a servo tab

Answer 5

A cockpit controlled adjustable tab attached to the trailing edge of a primary control surface. The tab moves opposite the direction of the control surface producing an aerodynamic force that moves the primary

Question 6

What is a spring tab

Answer 6

It is an auxiliary control designed to help move the primary control at high speeds when forces become too high

Question 7

What is a balance trim tab

Answer 7

It is an auxiliary control designed to create aerodynamic forces to assist in moving a control surface.

Question 8

What are for most common types of high lift devices

Answer 8

Leading and trailing edge flaps, slats and slots

Question 9

Describe some of the tools used to check control surface travel

Answer 9

A universal propeller protractor or special control surface protractor

Question 10

Name three mechanical methods by which flight control systems may be actuated

Answer 10

Cables, push-pull rods, and torque tools

Question 11

What is a fairlead

Answer 11

It is a device to prevent a cable from rubbing on the aircraft structure

Question 12

What are the most likely places for a control cable to wear or break

Answer 12

Where the cables pass over pulleys or through fairleads

Question 13

What information is required before a cable rigging chart can be used

Answer 13

The ambient temperature and the cable size

Question 14

What is the function of a cable tension regulator

Answer 14

It automatically adjusts the cable tension to compensate for expansion and contraction in the aircraft structure

Question 15

Describe the function of a rotorcraft collective pitch control

Answer 15

Used to change the pitch of the main rotor blades therefore increases or decreases lift

Question 16

Describe the function of a rotorcraft cyclic pitch control

Answer 16

The cyclic control tilts the main rotor disc by changing the pitch angle of each rotor blade during its cycle of rotation which causes the helicopter to move in the direction the rotor tilts

Question 17

What mechanism is most commonly used to compensate for the torque produced by the main rotor of a helicopter

Answer 17

The tail rotor

Question 18

How is the amount of thrust produced by the tail rotor controlled

Answer 18

By moving the foot pedal

Question 19

Why should control surfaces be locked when an aircraft is parked

Answer 19

To prevent damage from the wind

Question 20

What is the function of a vortex generator

Answer 20

Prevents separation from the surface of the wing

Question 21

What is the function of the ailerons on an airplane

Answer 21

Ailerons rotate the airplane about its longitudinal axis

Question 22

What is the function of a rudder

Answer 22

Rotates the airplane about its vertical axis

Question 23

How much is a fairlead allowed to deflect a control cable

Answer 23

3 degrees

Question 24

What are vortex generators

Answer 24

Small airfoils mounted on the upper surface of the wings. Designed to prevent airflow from separating from the upper surface of the wing

Question 25

What factor are used to determine the proper tension cable

Answer 25

Size of cable and outside temperature

Question 26

What reference publication should be used to rig aircraft included the control system

Answer 26

Refer to aircraft specifications, TCDS issued by FAA, and also the maintenance manual issued by manufacture