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Which statement about Airworthiness Directives (AD's) is true?
Compliance with an apllicable AD is mandatory and must be recorded in the maintenance manual.
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When overhauling electrical equipment, all necessary information should be obtained from
Maintenance instructions published by the aircraft and/or equipment manufacturer
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Which statement is correct regarding an aircraft that is found to be unairworthy after an annual inspection, due to an item requiring a major repair (assuming approved data is used to accomplish the repair)?
An appropriatly rated mechanic may accomplish the repair, and an IA may approve the aircraft for return to service.
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Radio equipment installations made in accordance with Supplemental Type Certificate data require approval for return to service
By the holder of an Inspection Authorization
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An aircraft that is required by Section 91.409, to have a 100-hour inspection may be flown beyond the inspection requirement
if necessary to reach a place at which the inspection can be accomplished, but not to exceed 10 hours.
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Where would you find the recommended statement for recording the approval or disapproval for return to service of an aircraft after a 100-hour or annual inspection?
14 CFR Part 43
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The maximum time a 100-hour inspection may be extended is
10 Hours
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Which statement is correct when an aircraft has not been approved for return to service after an annual inspection because of several items requiring minor repair?
An approriatly rated mechanic may repair the defects and approve the aircraft for return to service.
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An aircraft that is due an annual inspection may be flown
If a special permit has been issued for the aircraft.
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For an individual (not a repair station) to conduct a complete 100-hour inspection on an aircraft and approve it for return to service requires a mechanic certificate with an
Airframe and powerplant ratings
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Where would you find the operating conditions that make a 100-hour inspection mandatory?
14 CFR Part 91
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Large airplanes and turbine-powered multiengine airplanes operated under Federal Aviation Regulation Part 91, General Operating and Flight Rules, must be inspected
In accordance with an inspection program authorized under Federal Aviation Regulation Part 91, Subpart E.
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Exposure to and/or storage near which of the following is considered harmful to aircraft tires?
2. Fuel.
3. Oil.
4. Ozone.
6. Electrical equipment.
7. Hydraulic fluid.
8. Solvents.
2, 3, 4, 6, 7, 8
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What would be the effect if the piston return spring broke in a brake master cylinder?
The brakes would drag
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In brake service work, the term 'bleeding brakes' is the process of
withdrawing fluid from the system for the purpose of removing air that has entered the system
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To prevent a very rapid extension of an oleo shock strut after initial compression resulting from landing impact,
various types of valves or orifices are used which restrict the reverse fluid flow.
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A pilot reports the right brake on an aircraft is spongy when the brake pedal is depressed in a normal manner. The probable cause is
Air in the brake hydraulic system
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Aside from an external leak in the line, what will cause parking brakes to creep continually to the OFF position?
An internal leak in the master cylinder
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Why do most aircraft tire manufacturers recommend that the tubes in newly installed tires be first inflated, fully deflated, and then reinflated to the correct pressure?
To allow the tube to position itself correctly inside the tire.
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The metering pins in oleo shock struts serve to
Retard the flow of oil as the struts are compressed.
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After performing maintenance on an aircraft's landing gear system which may have affected the system's operation, it is usually necessary to
make an operational check with the aircraft on jacks
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Why do tire and wheel manufacturers often recommend that the tires on split rim wheels be deflated before removing the wheel from the axle?
As a safety precaution in case the bolts that hold the wheel halves together have been damaged or weakened
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The braking action of a Cleveland disk brake is accomplished by compressing a rotating brake disk between two opposite brake linings. How is equal pressure on both sides of the rotating disk assured?
By allowing the caliper to float to automatically equalize as pressure is applied to the rotor.
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If it is determined that spongy brake action is not caused by air in the brake system, what is the next most likely cause?
Deteriorated Flexible Hoses
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Many brake types can be adapted to operate mechanically or hydraulically. Which type is not adaptable to mechanical operation?
Expander-Tube Type
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A brake debooster valve is installed in systems where the high pressure of the hydraulic system (3000 psi) is used to operate brakes
That are designed to work with lower pressure
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A stripe or mark applied to a wheel rim and extending onto the sidewall of a tube-type tire is a
Slippage mark
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When bleeding aircraft brakes, one of the indications that the air has been purged from the system is
Firm Brake Pedals
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Overinflated aircraft tires may cause damage to the
Wheel Flange
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Debooster valves are used in brake systems primarily to
Reduce the pressure and release the brakes rapidly
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The repair for an out-of-tolerance toe-in condition of main landing gear wheels determined not to be the result of bent or twisted components consists of
inserting, removing, or changing the location of washers or spacers at the center pivotal point of scissor torque links
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An embossed letter 'H' on an air valve core stem
Indicates High-pressure Type
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The primary purpose for balancing aircraft wheel assemblies is to
Prevents heavy spots and reduce vibration
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Power boost systems are used on aircraft that have
High landing speeds
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On all aircraft equipped with retractable landing gear, some means must be provided to
Extend the landing gear if the normal operating mechanism fails
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An automatic damping action occurs at the steer damper if for any reason the flow of high-pressure fluid is removed from the
Inlet of the steer damper
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What is the purpose of the torque links attached to the cylinder and piston of a landing gear oleo strut?
Maintain Correct Wheel Alignment
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The removal, installation, and repair of landing gear tires by the holder of a private pilot certificate on an aircraft owned or operated is considered to be
Preventative maintenance
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Aircraft brakes requiring a large volume of fluid to operate the brakes generally
Use power brake control valves
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What is one effect a restricted compensator port of a master cylinder will have on a brake system?
The restriction will cause slow release of the brakes
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When an air/oil type of landing gear shock strut is used, the initial shock of landing is cushioned by
the fluid being forced through a metered opening.
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Internal leakage in a brake master cylinder unit can cause
the pedal to slowly creep down while pedal pressure is applied
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A sleeve, spacer, or bumper ring is incorporated in a landing gear oleo shock strut to
limit the extension stroke
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The purpose of a sequence valve in a hydraulic retractable landing gear system is to
Ensure operation of the landing gear and gear doors in the proper order
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The pressure source for power brakes is
the main hydraulic system
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Which statement is true with respect to an aircraft equipped with hydraulically operated multiple-disk type brake assemblies?
Do not set parking brakes when brakes are hot.
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What type of valve is used in the brake actuating line to isolate the emergency brake system from the normal power brake control valve system?
A shuttle valve
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When servicing an air/oil shock strut with MIL-5606 the strut should be
collapse and fluid added to the filler opening
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Instructions concerning the type of fluid and amount of air pressure to be put in a shock strut are found
In the aircrafts manufacturers service manual.
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The purpose of a relief valve in a brake system is to
compensate for thermal expansion
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Aircraft tire pressure should be checked
At least once a week or more often
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If the extended longitudinal axis of the main landing gear wheel assemblies intersects aft of the aircraft, the wheels can be termed as having
toe-out
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What is the purpose of a compensating port or valve in a brake master cylinder of an independent brake system?
Permits the fluid to flow toward or away from the reservoir as temperature changes.
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If an aircraft shock strut (air/oil type) bottoms upon initial landing contact, but functions correctly during taxi, the most probable cause is
Low Fluid
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What is the function of a cam incorporated in a nose gear shock strut?
Straightens the Nose Wheel
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Extension of an oleo shock strut is measured to determine the
proper operating position of the strut
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Debooster cylinders are used in brake systems primarily to
Reduce the pressure to the brake and increase the volume of fluid flow.
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If a shock strut bottoms after it has been properly serviced, the
strut should be removed, disassembled, and inspected
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A high-speed aircraft tire with a sound cord body and bead may be recapped
an indefinate number of times
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If an airplane equipped with master cylinders and single-disk brakes has excessive brake pedal travel, but the brakes are hard and effective, the probable cause is
Worn brake linings
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The correct inflation pressure for an aircraft tire can be obtained from
the aircraft service manual
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What should be checked when a shock strut bottoms during a landing?
Fluid Level
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How can it be determined that all air has been purged from a master cylinder brake system?
By noting wether the brake is firm or spongy
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The left brake is dragging excessively on an airplane on which no recent brake service work has been performed. The most probable cause is
Foreign particles stuck in the master cylinder compensating port.
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If a brake debooster is used in a hydraulic brake system, its position in the system will be
between the brake control valve and the brake actuating cylinder.
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The hydraulic packing seals used in a landing gear shock strut are
Used only with a specific type of fluid.
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Lockout deboosters are primarily pressure reducing valves that
Allow full debooster piston travel without fluid from the high pressure side entering the low pressure chamber.
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When a properly operating fusible plug has allowed a tire to deflate, the tire should be
Replaced
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Chines are used on some aircraft nose wheel tires to
Help deflect water away from the fuselage
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The best safeguards against heat buildup in aircraft tires are
short ground rolls, slow taxi speeds, minmum braking, and proper tire inflation.
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The fusible plugs installed in some aircraft wheels will
Melt at a specified elevated temperature
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What action, if any, should be taken when there is a difference of more than 5 pounds of air pressure in tires mounted as duals?
Correct the discrepency and enter in the log book.
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How long should you wait after a flight before checking tire pressure?
At least 2 hours ( 3 hours in hot weather)
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Excessive wear in the shoulder area of an aircraft tire is an indication of
Underinflation
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Excessive wear in the center of the tread of an aircraft tire is an indication of
overinflation
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When an empty shock strut is filled with fluid, care should be taken to extend and compress the strut completely at least two times to
Ensure proper packing ring seating and removal of air bubbles.
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In shock struts, chevron seals are used to
Prevent oil from escaping
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On most aircraft, the oil level of an air and oil shock strut is checked by
Releasing the air and seeing that the oil is to the level of the filler plug.
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A pilot reports that the brake pedals have excessive travel. A probable cause is
Brake rotors have worn
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A landing gear position and warning system will provide a warning in the cockpit when the throttle is
retarded and gear is not down and locked
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An electric motor used to raise and lower a landing gear would most likely be a
split field series-wound motor
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When installing a chevron-type seal in an aircraft hydraulic cylinder, the open side of the seal should face
the direction of fluid pressure
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Nose gear centering cams are used in many retractable landing gear systems. The primary purpose of the centering device is to
center the nosewheel before it enters the wheel well
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What device in a hydraulic system with a constant-delivery pump allows circulation of the fluid when no demands are on the system?
Pressure Regulator
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A fully-charged hydraulic accumulator provides
A source for additional hydraulic power when heavy demands are placed on the system
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A hydraulic system referred to as a 'power pack' system will
have all hydraulic components located in one unit
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A hydraulic hose identified as MIL-H-8794 will have a yellow stripe running the length of the hose. This stripe
is used to ensure that the hose is installed without excessive twisting
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An O-ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with
A blue stripe or dot
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What condition would most likely cause excessive fluctuation of the pressure gauge when the hydraulic pump is operating?
Inadaquate supply of fluid
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A filter incorporating specially treated cellulose paper is identified as a
micronic filter
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The purpose of an orifice check valve is to
Restrict flow in one direction and allow free flow in the other
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(Refer to Figure 10.) The trunnion nut on an aircraft landing gear requires a torque of 320 inch-pounds. To reach the nut, a 2-inch straight adapter must be used on an 18-inch torque wrench. How many foot-pounds will be indicated on the torque wrench when the required torque of the nut is reached?
24
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A special bolt in a landing gear attachment requires a torque value of 440 inch-pounds. How many foot-pounds are required?
36.6
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