FAA Airframe Oral Test Questions and Answers Graded A+
What is the function of a vortex generator - What is a balance trim tab - ANSWER -it is
ANSWER -it is used to delay or prevent the an auxiliary control designed to create
separation of the boundary layer aerodynamic forces to assist in moving a control
surface. The tab is positioned by a control rod
connected to a fixed surface on the same side as
What are the 3 axes of an airplane - the horn of the tab
ANSWER -longitudinal, lateral and vertical
What are the 4 most common high lift devices -
What are the 3 primary flight controls of an ANSWER -Leading and trailing edge flaps,
aircraft - ANSWER -ailerons, rudder, slats and slots
elevator
Describe some of the tools used to check control
Name several secondary flight controls and surface travel - ANSWER -a universal
describe their general purpose - propeller protractor or a special control surface
ANSWER -secondary flight controls consist protractor
of various types of trim tabs, such as balance
tabs, anti-servo tabs, servo tabs and spring tabs.
Their general purpose is to assist the pilot in Name 3 mechanical methods in which control
moving the controls and to trim the aircraft for surfaces may be actuated - ANSWER -
hands off flying cables, torque tubes and push pull rods
Name several types of auxiliary flight controls What is a fairlead - ANSWER -it is a device
and describe their general purpose - to prevent a cable from rubbing on aircraft
ANSWER -The auxiliary flight controls structure
consist of various high lift devices used during
low speed flight such as leading and trailing edge
flaps, slat, slots, speed brakes, etc. What are the most likely places for a control
cable to wear or break - ANSWER -where a
cable passes over a pulleys or through fairleads
What is a servo trim tabs - ANSWER -it is
an auxiliary control, positioned by the movement
of a cockpit control and designed to create What information is required before a cable
aerodynamic forces to assist in moving a control rigging chart can be used - ANSWER -the
surface ambient temperature and the cable size
What is a spring tab - ANSWER -it is an What is the function of a cable tension regulator -
auxiliary control designed to aid the movement of ANSWER -it automatically adjusts to
a primary control at high speeds when control compensate for expansion and retraction in the
forces become too high aircraft structure
,FAA Airframe Oral Test Questions and Answers Graded A+
Describe the function of a rotorcraft collective shank diameter in height
pitch control - ANSWER -The collective
pitch control causes each rotor blade to change
its pitch angle by the same amount, thus Describe the markings found on the heads of A,
increasing or decreasing the lift produced by the B, D, AD, and DD rivets - ANSWER -A -
rotor plain
B - cross
D - raised dot
Describe the function of a rotorcraft cyclic pitch AD - a dimple
control - ANSWER -The cyclic control tilts DD - double dash
the main rotor disk by changing the pitch angle of
each rotor blade during its cycle of rotation which
cause the helicopter to move in the direction the What happens to the stem of a self plugging
rotor disk tilts (friction lock) rivet when the rivet is installed -
ANSWER -the stem is pulled until it snaps
off and the remaining part is trimmed flush with
What mechanism is commonly used to the head
compensate for the torque produced by the main
rotor of a helicopter - ANSWER -the tail or
anti torque rotor Name at least 3 types of self plugging
mechanical lock rivets - ANSWER -
CherryMAX, CherryLOCK, Olympic-LOK,
why should control surfaces be locked when an HuckLok
aircraft is parked - ANSWER -to prevent
damage from the wind
What is the difference between the tools required
to pull a CherryLOCK rivet and a CherryMAX
How is the amount of thrust produced by the tail rivet - ANSWER -CherryLOCK rivets
rotor controlled - ANSWER -by moving the require a tool for each different size and head
foot pedals shape, while 1 pulling tool will set any size
CherryMAX rivet
What is the major type of damage to aluminum
that is caused by exposure to the weather - Which of the 5 stresses is most likely to cause
ANSWER -corrosion rivet failure - ANSWER -shear
name several methods for forming sheet metal - If a 2024 rivet must be replaced with a 2117 rivet
ANSWER -bending or folding, stretching, how do you determine the size to be used -
shrinking, bumping, crimping ANSWER -for 5/32 inch or smaller diameter
use the next larger size 2117 rivet, assuming the
edge distance and spacing meet the minimum
what are the dimensions of a properly formed requirements
rivet head - ANSWER -The head should be
1.5 times the shank diameter in width and .5 the
Describe the process for determining the total
, FAA Airframe Oral Test Questions and Answers Graded A+
length of a solid rived for a particular installation - remove a solid shank rivet - ANSWER -
ANSWER -add the grip length (thickness of center punch the rivet, drill to the base of the
the materials being joined) plus 1.5 times the head with the same size or 1 size smaller drill bit,
rivet diameter use a pin punch to remove rivet head and drive
the shank out of the hole while supporting the
surrounding metal
What minimum edge distance and spacing
should be used for a single row of protruding
head rivets - ANSWER -not less than 2 What are the 2 special calculations that must be
rivet diameters from the edge and not less than 3 made when bending sheet metal -
rivet diameters apart ANSWER -bend allowance and setback
How can a mechanic determine whether the What factors must be considered in order to
countersink for a flush rivet should be dimpled or determine setback - ANSWER -the
drilled - ANSWER -by the thickness of the thickness of the metal and the bend radius
top sheet; thin sheets are dimpled, thick sheets
may be drilled
what is done to a corner where 2 bends intersect
to prevent cracking - ANSWER -relief holes
What action is taken to prevent cracks from are drilled at the corner
forming while dimpling magnesium or some hard
metals - ANSWER -hot dimpling equipment
is used to preheat and soften the metal before What are to reasons for installing a lightening
the metal before the dimple is formed hole in a sheet metal wing rib - ANSWER -
reduce weight and increase stiffness
What type of damage can occur when using a
rivet set that does not properly fit the rivet - Describe a joggle and explain its function -
ANSWER -If the radius of the set is too ANSWER -a joggle is an offset formed at an
small, damage to the rivet head may occur; if the intersection of 2 or more sheets of metal to allow
set is too big, it may cause damage to the sheet the multiple sheets to be stacked flat against
metal each other
Why is it important to use the proper size and When repairing an all metal aircraft, how do you
weight bucking bar when performing sheet metal determine what metals should be used -
riveting - ANSWER -if the bucking bar is ANSWER -always use metal of the same
too large or heavy it may be difficult to control type and thickness as the original structure
and may cause damage to surrounding structure,
whereas is the bucking bar is too light, it will not
properly upset the rivet before work hardening What are the 3 forms of wood commonly used in
occurs aircraft construction - ANSWER -solid
,laminated and plywood
What procedures should be followed to properly
What is the function of a vortex generator - What is a balance trim tab - ANSWER -it is
ANSWER -it is used to delay or prevent the an auxiliary control designed to create
separation of the boundary layer aerodynamic forces to assist in moving a control
surface. The tab is positioned by a control rod
connected to a fixed surface on the same side as
What are the 3 axes of an airplane - the horn of the tab
ANSWER -longitudinal, lateral and vertical
What are the 4 most common high lift devices -
What are the 3 primary flight controls of an ANSWER -Leading and trailing edge flaps,
aircraft - ANSWER -ailerons, rudder, slats and slots
elevator
Describe some of the tools used to check control
Name several secondary flight controls and surface travel - ANSWER -a universal
describe their general purpose - propeller protractor or a special control surface
ANSWER -secondary flight controls consist protractor
of various types of trim tabs, such as balance
tabs, anti-servo tabs, servo tabs and spring tabs.
Their general purpose is to assist the pilot in Name 3 mechanical methods in which control
moving the controls and to trim the aircraft for surfaces may be actuated - ANSWER -
hands off flying cables, torque tubes and push pull rods
Name several types of auxiliary flight controls What is a fairlead - ANSWER -it is a device
and describe their general purpose - to prevent a cable from rubbing on aircraft
ANSWER -The auxiliary flight controls structure
consist of various high lift devices used during
low speed flight such as leading and trailing edge
flaps, slat, slots, speed brakes, etc. What are the most likely places for a control
cable to wear or break - ANSWER -where a
cable passes over a pulleys or through fairleads
What is a servo trim tabs - ANSWER -it is
an auxiliary control, positioned by the movement
of a cockpit control and designed to create What information is required before a cable
aerodynamic forces to assist in moving a control rigging chart can be used - ANSWER -the
surface ambient temperature and the cable size
What is a spring tab - ANSWER -it is an What is the function of a cable tension regulator -
auxiliary control designed to aid the movement of ANSWER -it automatically adjusts to
a primary control at high speeds when control compensate for expansion and retraction in the
forces become too high aircraft structure
,FAA Airframe Oral Test Questions and Answers Graded A+
Describe the function of a rotorcraft collective shank diameter in height
pitch control - ANSWER -The collective
pitch control causes each rotor blade to change
its pitch angle by the same amount, thus Describe the markings found on the heads of A,
increasing or decreasing the lift produced by the B, D, AD, and DD rivets - ANSWER -A -
rotor plain
B - cross
D - raised dot
Describe the function of a rotorcraft cyclic pitch AD - a dimple
control - ANSWER -The cyclic control tilts DD - double dash
the main rotor disk by changing the pitch angle of
each rotor blade during its cycle of rotation which
cause the helicopter to move in the direction the What happens to the stem of a self plugging
rotor disk tilts (friction lock) rivet when the rivet is installed -
ANSWER -the stem is pulled until it snaps
off and the remaining part is trimmed flush with
What mechanism is commonly used to the head
compensate for the torque produced by the main
rotor of a helicopter - ANSWER -the tail or
anti torque rotor Name at least 3 types of self plugging
mechanical lock rivets - ANSWER -
CherryMAX, CherryLOCK, Olympic-LOK,
why should control surfaces be locked when an HuckLok
aircraft is parked - ANSWER -to prevent
damage from the wind
What is the difference between the tools required
to pull a CherryLOCK rivet and a CherryMAX
How is the amount of thrust produced by the tail rivet - ANSWER -CherryLOCK rivets
rotor controlled - ANSWER -by moving the require a tool for each different size and head
foot pedals shape, while 1 pulling tool will set any size
CherryMAX rivet
What is the major type of damage to aluminum
that is caused by exposure to the weather - Which of the 5 stresses is most likely to cause
ANSWER -corrosion rivet failure - ANSWER -shear
name several methods for forming sheet metal - If a 2024 rivet must be replaced with a 2117 rivet
ANSWER -bending or folding, stretching, how do you determine the size to be used -
shrinking, bumping, crimping ANSWER -for 5/32 inch or smaller diameter
use the next larger size 2117 rivet, assuming the
edge distance and spacing meet the minimum
what are the dimensions of a properly formed requirements
rivet head - ANSWER -The head should be
1.5 times the shank diameter in width and .5 the
Describe the process for determining the total
, FAA Airframe Oral Test Questions and Answers Graded A+
length of a solid rived for a particular installation - remove a solid shank rivet - ANSWER -
ANSWER -add the grip length (thickness of center punch the rivet, drill to the base of the
the materials being joined) plus 1.5 times the head with the same size or 1 size smaller drill bit,
rivet diameter use a pin punch to remove rivet head and drive
the shank out of the hole while supporting the
surrounding metal
What minimum edge distance and spacing
should be used for a single row of protruding
head rivets - ANSWER -not less than 2 What are the 2 special calculations that must be
rivet diameters from the edge and not less than 3 made when bending sheet metal -
rivet diameters apart ANSWER -bend allowance and setback
How can a mechanic determine whether the What factors must be considered in order to
countersink for a flush rivet should be dimpled or determine setback - ANSWER -the
drilled - ANSWER -by the thickness of the thickness of the metal and the bend radius
top sheet; thin sheets are dimpled, thick sheets
may be drilled
what is done to a corner where 2 bends intersect
to prevent cracking - ANSWER -relief holes
What action is taken to prevent cracks from are drilled at the corner
forming while dimpling magnesium or some hard
metals - ANSWER -hot dimpling equipment
is used to preheat and soften the metal before What are to reasons for installing a lightening
the metal before the dimple is formed hole in a sheet metal wing rib - ANSWER -
reduce weight and increase stiffness
What type of damage can occur when using a
rivet set that does not properly fit the rivet - Describe a joggle and explain its function -
ANSWER -If the radius of the set is too ANSWER -a joggle is an offset formed at an
small, damage to the rivet head may occur; if the intersection of 2 or more sheets of metal to allow
set is too big, it may cause damage to the sheet the multiple sheets to be stacked flat against
metal each other
Why is it important to use the proper size and When repairing an all metal aircraft, how do you
weight bucking bar when performing sheet metal determine what metals should be used -
riveting - ANSWER -if the bucking bar is ANSWER -always use metal of the same
too large or heavy it may be difficult to control type and thickness as the original structure
and may cause damage to surrounding structure,
whereas is the bucking bar is too light, it will not
properly upset the rivet before work hardening What are the 3 forms of wood commonly used in
occurs aircraft construction - ANSWER -solid
,laminated and plywood
What procedures should be followed to properly
