FAA A&P Airframes Oral And Practical
Test Questions And Correct Answers
What is the function of a vortex generator?
It is designed to delay or prevent separation of the boundary layer.
What are the 3 axis of an airplane?
Longitudinal, Lateral, and Vertical.
What are the 3 primary flight controls?
Ailerons, elevator, and rudder
Name several types of secondary flight controls and describe thier general purpose.
Secondary flight controls consist of various types of trim tabs such as balance tabs, anti-
servo, servo tabs, and spring tabs. Thier function is to assist the pilot in moving the
controls and trimming the aircraft to fly hands off.
Name several types of auxiliary flight controls and describe thier general purpose.
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, speed brakes, etc.
,What is a servo trim tab?
It is an auxillary control, positioned by the movement of a control in the cockpit and
designed to create aerodynamic forces to assist in moving a control surface.
What is a spring tab?
An auxillary control designed to aid the movement of a primary control at high speeds
when control forces become too high
What is a balance trim tab?
An auxillary control designed to create aerodynamic forces to assist in moving a control
surface. The tab is positioned by a control rod on the connected to a fixed surface on
the same side as the horn of the tab.
What are the four most common types of high lift devices?
Leading and trailing edge flaps, slats, and slots.
Describe some tools to used to check control surface travel.
A universal propeller protractor or special control surface protractor.
,Name three mechancial methods by which flight control systems may be actuated.
Cables, push-pull rods, and torque tubes.
What is a fairlead?
A device to prevent a cable form rubbing on the aircraft structure.
What are the most likey places for a control cable to break?
Where cables pass over pulleys or through fairleads.
What infoemation is required before a cable rigging chart can be used?
The ambient temperature and the cable size.
What is the function of a cable tension regulator?
It automatically adjust the cable tension to compensate for expansion and contraction
in the aircraft structure.
Describe the function of a rotorcraft collective pitch control.
The collective control causes each rotor blade to change its pitch by the same amount,
thus increase or decreasing the amount of lift produced by the rotor.
, Describe the function of a rotorcraft cyclic pitch control.
The cyclic control tilts the main rotor disc by 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.
What mechanism is most commonly used to compensate for the torque produced by
the main rotor of a helicopter?
The tail (or anti-torque) rotor.
How is the amont of thrust produced by the tail rotor controled?
By moving the foot pedals
Why should control surfaces be locked when an aircraft is parked?
To prevent damage from the wind.
What is the major damage to aluminum structures that is caused by exposure to the
weather?
Corrosion.
Name several methods for forming sheet metal
Test Questions And Correct Answers
What is the function of a vortex generator?
It is designed to delay or prevent separation of the boundary layer.
What are the 3 axis of an airplane?
Longitudinal, Lateral, and Vertical.
What are the 3 primary flight controls?
Ailerons, elevator, and rudder
Name several types of secondary flight controls and describe thier general purpose.
Secondary flight controls consist of various types of trim tabs such as balance tabs, anti-
servo, servo tabs, and spring tabs. Thier function is to assist the pilot in moving the
controls and trimming the aircraft to fly hands off.
Name several types of auxiliary flight controls and describe thier general purpose.
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, speed brakes, etc.
,What is a servo trim tab?
It is an auxillary control, positioned by the movement of a control in the cockpit and
designed to create aerodynamic forces to assist in moving a control surface.
What is a spring tab?
An auxillary control designed to aid the movement of a primary control at high speeds
when control forces become too high
What is a balance trim tab?
An auxillary control designed to create aerodynamic forces to assist in moving a control
surface. The tab is positioned by a control rod on the connected to a fixed surface on
the same side as the horn of the tab.
What are the four most common types of high lift devices?
Leading and trailing edge flaps, slats, and slots.
Describe some tools to used to check control surface travel.
A universal propeller protractor or special control surface protractor.
,Name three mechancial methods by which flight control systems may be actuated.
Cables, push-pull rods, and torque tubes.
What is a fairlead?
A device to prevent a cable form rubbing on the aircraft structure.
What are the most likey places for a control cable to break?
Where cables pass over pulleys or through fairleads.
What infoemation is required before a cable rigging chart can be used?
The ambient temperature and the cable size.
What is the function of a cable tension regulator?
It automatically adjust the cable tension to compensate for expansion and contraction
in the aircraft structure.
Describe the function of a rotorcraft collective pitch control.
The collective control causes each rotor blade to change its pitch by the same amount,
thus increase or decreasing the amount of lift produced by the rotor.
, Describe the function of a rotorcraft cyclic pitch control.
The cyclic control tilts the main rotor disc by 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.
What mechanism is most commonly used to compensate for the torque produced by
the main rotor of a helicopter?
The tail (or anti-torque) rotor.
How is the amont of thrust produced by the tail rotor controled?
By moving the foot pedals
Why should control surfaces be locked when an aircraft is parked?
To prevent damage from the wind.
What is the major damage to aluminum structures that is caused by exposure to the
weather?
Corrosion.
Name several methods for forming sheet metal
