ASSEMBLY AND RIGGING

78問 • 1年前

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問題一覧

The purpose of the vertical fin is to provide

Directional stability

A universal propeller protractor used to measure the degrees of aileron travel should be zeroed

With the aileron in the NEUTRAL position

Other than the manufacturer maintenance manual what other document could be used to determine the primary flight control surface deflection for an imported aircraft that is reassembled after shipment?

Aircraft type certificate data sheet

If all instructions issued by the swaging tool manufacturer are followed when swaging a cable terminal, the resultant swaged terminal strength should be

The full rated strength of the cable

If control cables are adjusted properly and the control surfaces tend to vibrate, the probable cause is

Worn attachment fittings

Fairleads should never deflect the alignment of a cable more than

3°

Movement about the longitudinal axis (roll) in a helicopter is affected by movement of the

Cyclic pitch control

What physical factors are involved in the aspect ratio of airplane wings?

Span and chord

A reduction in anti-torque thrust will cause the

Tail to pivot in the direction of torque rotation around the main rotor axis

Which statement concerning the 100-hour inspection of an airplane equipped with a push-pull tube-type control system is true?

The threaded rod ends should be checked for the amount of thread engagement by means of the inspection hole provided

Main rotor blades that do not cone by the same amount during rotation are said to be out of

Track

An airplane which has good longitudinal stability should have a minimum tendency to

Pitch

Movement about the lateral axis (pitch) in a helicopter is effected by movement of the

Cyclic pitch control

The chord of a wing is measured from

Leading edge to trailing edge

The purpose of spring tabs or servo tabs is to

Assist the pilot in moving the control surfaces

Why is it generally necessary to jack an aircraft indoors for weighing?

So that air currents do not destabilize the scales

Which is an acceptable safety device for a castle nut when installed on secondary structures?

Cotter pin

As the angle of attack of an airfoil increases, the center of pressure will

Move toward the leading edge

During inspection of the flight control system of an airplane equipped with differential-type aileron control, side-to-side movement of the control stick will cause

Each aileron to have a greater up travel (from the streamlined position) than down travel

What nondestructive checking method is normally used to ensure that the correct amount of swaging has taken place when installing swaged-type terminals on aircraft control cable?

Use a terminal gauge to check the diameter of the swaged portion of the terminal

Aircraft flight control trim systems must be designed and installed so that the

Pilot can determine the relative position of the trim tab from the cockpit

Which statement is correct concerning torque effect on helicopters?

Torque direction is the opposite of rotor blade rotation

In a hovering helicopter equipped with a tail rotor, directional control is maintained by

Varying the pitch of the tail rotor blades

Movement of the cockpit control toward the nosedown position during a ground operational check of the elevator trim tab system will cause the trailing edge of the trim tab to move in which direction?

Upward regardless of elevator position

Where would you find precise information to perform a symmetry alignment check for a particular aircraft?

Aircraft service or maintenance manual

If the right wing of a monoplane is improperly rigged to a greater angle of incidence than designated in the manufacturer’s specifications, it will cause the

Airplane to be off balance both laterally and directionally

The universal propeller protractor can be used to measure

Degrees of flap travel

One purpose of the freewheeling unit required between the engine and the helicopter transmission is to

Automatically disengage the rotor from the engine in case of an engine failure

An airplane that has a tendency to gradually increase a pitching moment that has been set into motion has

Poor longitudinal stability

The primary purpose of stall strips is to

Stall the inboard portion of the wings first

The auxiliary (tail) rotor of a helicopter permits the pilot to compensate for and/or accomplish which of the following?

Torque and directional control

If the control stick of an aircraft with properly rigged flight controls is moved rearward and to the left, the right aileron will move

Down and the elevator will move up

The correct dihedral angle can be determined by

Using a dihedral board and bubble level along the front spar of each wing

Excessive wear on both of the sides of a control cable pulley groove is evidence of

Pulley misalignment

What is the purpose of the free-wheeling unit in a helicopter drive system?

It disconnects the rotor whenever the engine stops or slows below the equivalent of rotor RPM

The angle of incidence is that acute angle formed by

A line parallel to the wing chord and a line parallel to the longitudinal axis of the aircraft

Which should be accomplished before jacking an aircraft?

Install critical stress panels or plates

The acute angle formed by the chord line of a wing and the relative wind is known as the

Angle of attack

An airplane is controlled directionally about its vertical axis by the

Rudder

When the lift of an airfoil increases, the drag will

Also increase

Very often, repairs to a control surface require static rebalancing of the control surface. Generally, flight control balance condition may be determined by

The behavior of the trailing edge when the surface is suspended from its hinge points

If a single-rotor helicopter is in forward horizontal flight, the angle of attack of the advancing blade is

Less than the retreating blade

A helicopter in forward flight, cruise configuration, changes direction by

Tilting the main rotor disk in the desired direction

Differential control on an aileron system means that

The up travel is more than the down travel

The vertical flight of a helicopter is controlled by

Collective pitch changes

What is the smallest size cable that may be used in aircraft primary control systems?

1/8 inch

The cable-operated control system of an all-metal aircraft, not incorporating a temperature compensating device, has been rigged to the correct tension in a heated hangar. If the aircraft is operated in very cold weather, the cable tension will

Decrease when the aircraft structure and cables become cold

Washing-in the left wing of a monoplane, for purposes of rigging corrections after flight test, will have what effect on the lift and drag of that wing?

Both drag and lift will increase due to increased angle of attack

A tension regulator in the flight control cable system of a large all-metal aircraft is used primarily to

Retain a set tension

Buffeting is the intermittent application of forces to a part of an airplane. It is caused by

An unsteady flow from turbulence

Wing dihedral, a rigging consideration on most airplanes of conventional design, contributes most to stability of the airplane about its

Longitudinal axis

Where is the buttock line or buttline of an aircraft

A width measurement left or right of, and parallel to, the vertical centerline

If a pilot reports that an airplane flies left wing heavy, this condition may be corrected by

Increasing the angle of incidence of the left wing, or decreasing the angle of incidence of the right wing, or both

If the vertical fin of a single-engine, propeller- driven airplane is rigged properly, it will generally be parallel to

The vertical axis but not the longitudinal axis

How are changes in direction of a control cable accomplished?

Pulleys

If the travel of an airplane’s controls is correct but the cables are rigged exceptionally tight, what probable effect will this have when flying the airplane?

The airplane will be heavy on the controls

The angle of incidence of an airplane at rest

Does not change when in flight

When a fiber or nylon insert-type, self-locking nut can be threaded on a bolt or stud through the insert with only the fingers, it should be

Rejected

In rotorcraft external-loading, the ideal location of the cargo release is where the line of action passes

Through the center of gravity at all times

Where does the breakage of control cable wires occur most frequently?

Breakage usually occurs where cables pass over pulleys and through fairleads

Stability about the axis which runs parallel to the line of flight is referred to as

Lateral stability

Movement of an airplane along its lateral axis (roll) is also movement

Around or about the longitudinal axis controlled by the ailerons

The purpose in checking main rotor blade tracking is to determine the

Relative position of the blades during rotation

Where is fuselage station No. 137 located?

137 inches aft of the zero or fixed reference line

The vast majority of aircraft control cables are terminated with swaged terminals, that must be

Checked with a go-no-go gauge before and after, to show compliance with manufacturer’s requirements after the swaging operation

When inspecting a control cable turnbuckle for proper installation, determine that

The safety wire ends are wrapped a minimum of four turns around the terminal end shanks

The elevators of a conventional airplane are used to provide rotation about the

Lateral axis

What type of flap system increase the wing area and changes the wing camber?

Fowler flaps

With which system is differential control associated?

Aileron

When used in close proximity to magnetic compasses, cotter pins are made of what material?

Corrosion resisting steel

Improper rigging of the elevator trim tab system will affect the balance of the airplane about its

Lateral axis

After repairing or re-covering a rudder, the surface should be rebalanced

To manufacturer’s specifications

The purpose of wing slats is to

Reduce stalling speed

Proper wing twist in a sheet metal constructed wing can usually be checked by utilizing

Bubble level and special fixtures described by the manufacturer

Placing a piece of cloth around a stainless steel control cable and running it back and forth over the length of the cable is generally a satisfactory method of

Inspecting for broken strands

An airplane’s center of lift is usually located aft of its center of gravity

So that the airplane will have a nose-heavy tendency

The dihedral angle of a wing may be measured by placing a straightedge and level protractor on the

Front spar

Rigging and alignment checks should not be undertaken in the open; however, if this cannot be avoided, the aircraft should be positioned

With the nose into the wind

airlaw

airlaw

pcar & afcar

pcar & afcar

new set

new set

human factor

human factor

human factor 2

human factor 2

Engine instrument system

ユーザ名非公開 · 54問 · 1年前

Engine instrument system

Propellers

Propellers

Propellers (2)

Propellers (2)

Induction and engine airflow system

ユーザ名非公開 · 42問 · 1年前

Induction and engine airflow system

42問 • 1年前

ユーザ名非公開

Ignition starting system

ユーザ名非公開 · 100問 · 1年前

Ignition starting system

100問 • 1年前

ユーザ名非公開

Ignition starting system (2)

ユーザ名非公開 · 29問 · 1年前

Ignition starting system (2)

Auxiliary power unit

Auxiliary power unit

Reciprocating engines

ユーザ名非公開 · 100問 · 1年前

Reciprocating engines

Turbine engines

Turbine engines

Turbine engines (2)

Turbine engines (2)

Fuel metering systems

ユーザ名非公開 · 98問 · 1年前

Fuel metering systems

98問 • 1年前

ユーザ名非公開

Aircraft landing gear system

ユーザ名非公開 · 79問 · 1年前

Aircraft landing gear system

79問 • 1年前

ユーザ名非公開

Sheetmetal & Non sheetmetalic structure

ユーザ名非公開 · 100問 · 1年前

Sheetmetal & Non sheetmetalic structure

100問 • 1年前

ユーザ名非公開

Sheetmetal and non sheetmetalic structure

ユーザ名非公開 · 30問 · 1年前

Sheetmetal and non sheetmetalic structure

Aircraft fuel system

Aircraft fuel system

問題一覧

The purpose of the vertical fin is to provide

Directional stability

A universal propeller protractor used to measure the degrees of aileron travel should be zeroed

With the aileron in the NEUTRAL position

Aircraft type certificate data sheet

If all instructions issued by the swaging tool manufacturer are followed when swaging a cable terminal, the resultant swaged terminal strength should be

The full rated strength of the cable

If control cables are adjusted properly and the control surfaces tend to vibrate, the probable cause is

Worn attachment fittings

Fairleads should never deflect the alignment of a cable more than

3°

Movement about the longitudinal axis (roll) in a helicopter is affected by movement of the

Cyclic pitch control

What physical factors are involved in the aspect ratio of airplane wings?

Span and chord

A reduction in anti-torque thrust will cause the

Tail to pivot in the direction of torque rotation around the main rotor axis

Which statement concerning the 100-hour inspection of an airplane equipped with a push-pull tube-type control system is true?

The threaded rod ends should be checked for the amount of thread engagement by means of the inspection hole provided

Main rotor blades that do not cone by the same amount during rotation are said to be out of

Track

An airplane which has good longitudinal stability should have a minimum tendency to

Pitch

Movement about the lateral axis (pitch) in a helicopter is effected by movement of the

Cyclic pitch control

The chord of a wing is measured from

Leading edge to trailing edge

The purpose of spring tabs or servo tabs is to

Assist the pilot in moving the control surfaces

Why is it generally necessary to jack an aircraft indoors for weighing?

So that air currents do not destabilize the scales

Which is an acceptable safety device for a castle nut when installed on secondary structures?

Cotter pin

As the angle of attack of an airfoil increases, the center of pressure will

Move toward the leading edge

During inspection of the flight control system of an airplane equipped with differential-type aileron control, side-to-side movement of the control stick will cause

Each aileron to have a greater up travel (from the streamlined position) than down travel

What nondestructive checking method is normally used to ensure that the correct amount of swaging has taken place when installing swaged-type terminals on aircraft control cable?

Use a terminal gauge to check the diameter of the swaged portion of the terminal

Aircraft flight control trim systems must be designed and installed so that the

Pilot can determine the relative position of the trim tab from the cockpit

Which statement is correct concerning torque effect on helicopters?

Torque direction is the opposite of rotor blade rotation

In a hovering helicopter equipped with a tail rotor, directional control is maintained by

Varying the pitch of the tail rotor blades

Movement of the cockpit control toward the nosedown position during a ground operational check of the elevator trim tab system will cause the trailing edge of the trim tab to move in which direction?

Upward regardless of elevator position

Where would you find precise information to perform a symmetry alignment check for a particular aircraft?

Aircraft service or maintenance manual

If the right wing of a monoplane is improperly rigged to a greater angle of incidence than designated in the manufacturer’s specifications, it will cause the

Airplane to be off balance both laterally and directionally

The universal propeller protractor can be used to measure

Degrees of flap travel

One purpose of the freewheeling unit required between the engine and the helicopter transmission is to

Automatically disengage the rotor from the engine in case of an engine failure

An airplane that has a tendency to gradually increase a pitching moment that has been set into motion has

Poor longitudinal stability

The primary purpose of stall strips is to

Stall the inboard portion of the wings first

The auxiliary (tail) rotor of a helicopter permits the pilot to compensate for and/or accomplish which of the following?

Torque and directional control

If the control stick of an aircraft with properly rigged flight controls is moved rearward and to the left, the right aileron will move

Down and the elevator will move up

The correct dihedral angle can be determined by

Using a dihedral board and bubble level along the front spar of each wing

Excessive wear on both of the sides of a control cable pulley groove is evidence of

Pulley misalignment

What is the purpose of the free-wheeling unit in a helicopter drive system?

It disconnects the rotor whenever the engine stops or slows below the equivalent of rotor RPM

The angle of incidence is that acute angle formed by

A line parallel to the wing chord and a line parallel to the longitudinal axis of the aircraft

Which should be accomplished before jacking an aircraft?

Install critical stress panels or plates

The acute angle formed by the chord line of a wing and the relative wind is known as the

Angle of attack

An airplane is controlled directionally about its vertical axis by the

Rudder

When the lift of an airfoil increases, the drag will

Also increase

Very often, repairs to a control surface require static rebalancing of the control surface. Generally, flight control balance condition may be determined by

The behavior of the trailing edge when the surface is suspended from its hinge points

If a single-rotor helicopter is in forward horizontal flight, the angle of attack of the advancing blade is

Less than the retreating blade

A helicopter in forward flight, cruise configuration, changes direction by

Tilting the main rotor disk in the desired direction

Differential control on an aileron system means that

The up travel is more than the down travel

The vertical flight of a helicopter is controlled by

Collective pitch changes

What is the smallest size cable that may be used in aircraft primary control systems?

1/8 inch

Decrease when the aircraft structure and cables become cold

Washing-in the left wing of a monoplane, for purposes of rigging corrections after flight test, will have what effect on the lift and drag of that wing?

Both drag and lift will increase due to increased angle of attack

A tension regulator in the flight control cable system of a large all-metal aircraft is used primarily to

Retain a set tension

Buffeting is the intermittent application of forces to a part of an airplane. It is caused by

An unsteady flow from turbulence

Wing dihedral, a rigging consideration on most airplanes of conventional design, contributes most to stability of the airplane about its

Longitudinal axis

Where is the buttock line or buttline of an aircraft

A width measurement left or right of, and parallel to, the vertical centerline

If a pilot reports that an airplane flies left wing heavy, this condition may be corrected by

Increasing the angle of incidence of the left wing, or decreasing the angle of incidence of the right wing, or both

If the vertical fin of a single-engine, propeller- driven airplane is rigged properly, it will generally be parallel to

The vertical axis but not the longitudinal axis

How are changes in direction of a control cable accomplished?

Pulleys

If the travel of an airplane’s controls is correct but the cables are rigged exceptionally tight, what probable effect will this have when flying the airplane?

The airplane will be heavy on the controls

The angle of incidence of an airplane at rest

Does not change when in flight

When a fiber or nylon insert-type, self-locking nut can be threaded on a bolt or stud through the insert with only the fingers, it should be

Rejected

In rotorcraft external-loading, the ideal location of the cargo release is where the line of action passes

Through the center of gravity at all times

Where does the breakage of control cable wires occur most frequently?

Breakage usually occurs where cables pass over pulleys and through fairleads

Stability about the axis which runs parallel to the line of flight is referred to as

Lateral stability

Movement of an airplane along its lateral axis (roll) is also movement

Around or about the longitudinal axis controlled by the ailerons

The purpose in checking main rotor blade tracking is to determine the

Relative position of the blades during rotation

Where is fuselage station No. 137 located?

137 inches aft of the zero or fixed reference line

The vast majority of aircraft control cables are terminated with swaged terminals, that must be

Checked with a go-no-go gauge before and after, to show compliance with manufacturer’s requirements after the swaging operation

When inspecting a control cable turnbuckle for proper installation, determine that

The safety wire ends are wrapped a minimum of four turns around the terminal end shanks

The elevators of a conventional airplane are used to provide rotation about the

Lateral axis

What type of flap system increase the wing area and changes the wing camber?

Fowler flaps

With which system is differential control associated?

Aileron

When used in close proximity to magnetic compasses, cotter pins are made of what material?

Corrosion resisting steel

Improper rigging of the elevator trim tab system will affect the balance of the airplane about its

Lateral axis

After repairing or re-covering a rudder, the surface should be rebalanced

To manufacturer’s specifications

The purpose of wing slats is to

Reduce stalling speed

Proper wing twist in a sheet metal constructed wing can usually be checked by utilizing

Bubble level and special fixtures described by the manufacturer

Placing a piece of cloth around a stainless steel control cable and running it back and forth over the length of the cable is generally a satisfactory method of

Inspecting for broken strands

An airplane’s center of lift is usually located aft of its center of gravity

So that the airplane will have a nose-heavy tendency

The dihedral angle of a wing may be measured by placing a straightedge and level protractor on the

Front spar

Rigging and alignment checks should not be undertaken in the open; however, if this cannot be avoided, the aircraft should be positioned

With the nose into the wind