AME airframe

What affects the lateral axis?. The elevators cause pitch about the lateral axis. The ailerons cause roll about the lateral axis. The rudder causes yaw about the lateral axis.

What affects the vertical axis?. The ailerons cause roll about the vertical axis. The rudder causes yaw about the vertical axis. The elevators cause pitch about the vertical axis.

After what amount of deflection are pulleys used in aircraft?. When control cable deflection exceeds 1 degree. When control cable deflection exceeds 10 degrees. When control cable deflection exceeds 3 degrees.

If a tubular undercarriage is damaged can it be repaired?. No, tubular undercarriages can never be repaired and must always be replaced. Yes, by heating and bending the tube back to shape without reinforcement. Yes, by reinforcing the damaged area with a welded sleeve or braces.

What causes stress corrosion on aluminum alloys fittings?. Static tensile stress. Alternating compressive stress during flight. High-temperature exposure alone.

What would be the reason for one de-ice boot not inflating when all the others do?. A leak in that boot or its supply line. Incorrect inflation sequence timing. Excess electrical power to that boot.

What does a Flettner (fretter) tab do?. Remains fixed to reduce aerodynamic drag. Moves in the same direction as the desired control surface movement. Moves in the opposite direction to balance the control surface.

What must control locks have?. A placard permanently painted on the control surface. A warning light in the cockpit only. A ribbon or streamer hanging for easy identification.

Where should aircraft tires be stored?. In a cool, dry place, stored vertically. In a warm, dry place, stored horizontally. In a cool, humid place, stacked flat.

Maximum charge rate of a 6-cell lead-acid battery?. 14.1 volts. 12.6 volts. 15.5 volts.

Single-servo system sensing roll and yaw is placed in what system?. Aileron and rudder system. Elevator system. Spoiler system.

Wing station zero is measured from?. Wing tip. Wing root. Aircraft center of gravity.

A crack on a brake drum surface is?. Always cause for rejection. Acceptable if less than 1 inch and not extending to the edge. Acceptable regardless of length.

Generator uses what type of commutator?. Solid ring commutator. Split-ring commutator. Slip rings.

An integrated drive generator uses what?. DC generator and gearbox. Synchronous generator only. Brushless generator and CSD.

Type of seal phosphate ester fluid (Skydrol) uses?. Neoprene rubber. Butyl rubber. Silicone rubber.

Red dot on tire gets aligned with?. Tire tread mark. Valve stem. Wheel hub center.

Diluter demand systems, what does demand selection give?. 95% oxygen. 100% oxygen. 50% oxygen.

Boundary layer forms?. On the first 1/2 of the upper wing surface. On the first 1/3 of the upper wing surface. On the first 1/4 of the upper wing surface.

The factors that affect lateral stability?. Sweepback and dihedral angle. Dihedral and wing twist. Dihedral and sweepback.

How long does an intermittent electrical load operate for?. 20 seconds. 10 seconds. 15 seconds.

Weight of air in the standard atmosphere is defined as sufficient to hold up a column of mercury 30" high at sea level. How does this pressure change with altitude?. Remains constant with altitude. Increases with an increase in altitude. Decreases with an increase in altitude.

The force acting on 1 square foot of a fuselage at 5.6 psi differential pressure would be?. 850 lbs. 800 lbs. 806 lbs.

Provision for routine electrical circuits through pressurized bulkheads?. Junction boxes. Conduits and clamps. Plugs and receptacles.

To maintain a constant pressurizing airflow while an aircraft is climbing, a turbo supercharger would be?. Increase in speed due to air being thinner. Decrease in speed to reduce pressure. Maintain same speed regardless of altitude.

If pressure surges are reported as a fault in an aircraft with a centrifugal cabin supercharger you should check?. Supercharger control. Outflow valve position. Cabin pressure gauge.

If unable to attain maximum differential, the problem would be?. Cabin leakage. Malfunctioning dump valve. Faulty supercharger bearings.

If the static line broke during pressurized flight the altitude would read?. Altitude low and airspeed low. Altitude high and airspeed low. Altitude low and airspeed high.

On a pressure system with a cabin supercharger with constant rpm, airflow can be regulated?. Operation of the flow control and dump valve. By throttling the supercharger only. By adjusting the outflow valve alone.

The safety switch on the landing gear will affect?. Dump solenoid. Gear actuator. Gear warning horn.

A micronic paper hydraulic filter element is used to filter out solid particles larger than?. 40 microns. 35 microns. 45 microns.

Sometimes high-pressure oxygen uses a device to change system to low pressure. What is used to do this?. Pressure reducer valve. Pressure regulator. Flow control valve.

What color scheme for fuel lines?. Red and white. Red and yellow. White and black.

What do you call metal which has been distorted by extreme heat?. Discoloring of metal. Warped metal. Oxidation of metal.

20-24-0 an alloy, what does O stand for?. Annealed. Hard. Tempered.

What is the color of 2S rivets?. Pink. Silver. Yellow.

What color can a blush on dope take?. Pink. Smokey white. Yellow.

What is the color of 100/130 and 115/145 fuels?. 100/130 yellow, 115/145 orange. 100/130 green, 115/145 purple. 100/130 red, 115/145 blue.

What is the purpose of a snubber in a hydraulic system?. To increase fluid pressure. To prevent pressure fluctuation from injuring the pressure gauge. To filter the hydraulic fluid.

How are annealed rivets kept annealed?. At room temperature. In refrigerator (32°F for 24 hours). Heated above 200°F.

Grain deviation in wood?. 1" in 12". 1" in 15". 1" in 18".

Two kinds of glue?. Animal glue and epoxy. Casein and synthetic resin. Casein and PVA.

What does 18-8 stand for?. 18 - nickel, 8 - chromium. 18 - chromium, 8 - nickel. 18 - steel, 8 - carbon.

What does O on the end of aluminum mean?. Hard. Tempered. Annealed.

What does rivet pitch mean?. Diameter of rivet. Distance from edge to rivet. Distance between rivets in a row.

How close can rivets be placed from the edge of aluminum?. 1 rivet diameter. Not less than 2 rivet diameters. 3 rivet diameters.

What size head must a rivet have?. 2 diameters minimum. 1 diameter minimum. Minimum 1½ diameter and through material 1½ diameter.

Where are blind rivets used?. Only on thin sheets. On visible surfaces. In inaccessible places.

What is blushing?. Too thick a coat. Too thin a coat. Too much moisture in doping.

Unsewn dope in repairs is limited to speed and length of patch?. 200 mph and 20 inches. 150 mph and maximum 16 inches in any one direction. 120 mph and 10 inches.

What is the specific gravity of a fully charged battery?. 1.350. 1.250. 1.300.

What is one dash?. Steel high tensile. Steel low carbon. Steel corrosion resistant.

What is zinc chromate?. A type of primer only. A type of paint. An organic covering to prevent corrosion.

Normalizing – heat treatment?. Anneals; cooled in water. Increases hardness; cooled in oil. Relieves stresses; cooled in air.

What is the advantage of alclad or aluminum alloy?. Higher strength due to alloying. Corrosion resistant as it is covered with pure aluminum. Lighter weight only.

What is the purpose of a reverse current relay?. Prevents battery discharge through generator; protects generator from battery voltage. Prevents generator overload only. Regulates generator voltage.

What is "Zyglo" (cold testing)?. A fluorescent penetrant for inspecting metal, plastic material etc. for cracks and defects. A paint for corrosion protection. A cleaning solvent.

How are aircraft tires and tubes stored?. Tires on end (thread), tubes in boxes flat. Tires flat, tubes on end. Tires stacked horizontally, tubes upright.

Nickel-cadmium battery SG 12.00 does this tell you?. Nothing. Battery is ½ charged. Battery is fully charged.

What is anodizing?. A process to prevent exterior corrosion. A method to harden aluminum internally. A paint coating.

With which system is differential control associated?. Rudder. Aileron. Elevator.

Color of 80/87 fuel?. Red. Green. Blue.

If figuring out the C of G minimum fuel you should use?. 0.083 gallons per horsepower. 0.08 gallons per horsepower. 0.1 gallons per horsepower.

Control cable must be cut by?. Mechanical means only. Any cutting tool. Heated wire.

The steel tubing generally used for substitution?. 4130. X4130. 4340.

2330 steel is a?. Nickel steel. Chrome steel. Stainless steel.

Why do you remove flux from a weld?. Reduce hardness. Improve appearance. Prevent corrosion.

Snubber in a hydraulic system is to?. Maintain constant flow. Prevent leakage in the system. Prevent the pressure fluctuations from injuring the indicator.

To prevent corrosion in aluminum tubing it should be flushed with?. Water and soap solution. Gasoline. Hot linseed oil, parelketone or other corrosion inhibitor.

When a wooden prop is placed in storage it is?. Hung at an angle. Placed vertically. Placed horizontally.

The final balancing of a wooden propeller is obtained by?. Sanding the blades. Adding washers on the hub. Placing lead wool in concentric holes.

Bolting plastic?. Tighten halfway. Tighten fully. Tighten till snug, then back off one turn.

A photo of a controller shows cabin alt pointer at zero, aircraft altimeter at 10,000 feet, and aircraft flying at 5,000 feet. What is cabin altitude?. 10,000 feet. 5,000 feet. Zero feet.

Pressure air ducts made to withstand air in excess of 200 °C are made of?. Titanium. Aluminum alloy. Stainless steel.

The amount of refrigerant is checked by?. Pressure gauge. A sight gauge. Temperature probe.

Before checking the refrigerant it first must?. Be fully cooled. Be run for at least 5 minutes. Be disconnected from the system.

Aircraft cable uses?. 6x6 auxiliary, 6x19 control. 7x7 auxiliary, 7x19 control cables. 7x19 auxiliary, 7x7 control.

List two main kinds of plastic?. Thermo-elastic and thermosolid. Thermoplastic – can be softened by heat; Thermosetting – cannot be softened by heat. Thermo-soft and thermo-hard.

Color of 80/87 fuel?. Blue. Red. Green.

What does white arc on airspeed indicator mean?. Flap operating range. Maximum speed. Cruise speed.

What keeps the fuel cell from becoming over pressurized?. Fuel shutoff valve. Proper ventilation. Pressure relief spring.

What is the purpose of a white line on a flex hose?. Marks max pressure. Line indicates any twist in the flex line. Marks installation point.

What does “H” stand for on aluminum alloy or metal?. Strain hardening. Heat treated. Hardened only.

What is the purpose of a hole in a rod end?. Reduce weight. Safety check (to insert cotter pin). Lubrication.

How to check for delamination of honeycomb?. Ultrasonic only. Coin or metal ring tap test. X-ray only.

Why are some parts made of magnesium alloy?. Corrosion resistance. Low cost. High strength-to-weight ratio.

Purpose of separate bus bars?. Increase current. Reduce weight. For backup in case of failure or to protect equipment.

Cantilever has no?. Wingtip. Internal spar. External bracing.

What size is the hole drilled for rivets?. 0.005 inch. Same as rivet diameter. 0.003 inch oversized.

First thing to look for before reading a blueprint?. Revision number. Title block. Scale.

Atmospheric pressure at sea level?. 15.2 psi. 14.7 psi/29.92 inHg. 14.0 psi.

Define Pascal’s law?. Pressure decreases with depth. Pressure applied to any part of a confined liquid is transmitted with undiminished intensity to every other part. Pressure equals force × distance.

Vegetable-based hydraulic fluid?. Red in color, uses Teflon seals. Odorless and clear, uses synthetic seals. Has a pungent alcoholic odor, generally dyed blue, uses natural rubber seals.

Mineral-based (MIL-H-5606) hydraulic fluid?. Blue, natural rubber seals. Processed from petroleum, odor similar to penetrating oil, dyed red, uses synthetic rubber seals. Clear, synthetic seals.

Fuel color reference?. Red 100/130, green 115/145. Red 80/87, green 100/130, blue 91/96, purple 115/145. Blue 80/87, purple 100/130.

Wing decalogue?. Wing sweep angle. Distance from wing root to tip. Difference in angle of incidence between top and bottom of peeling.

Calendering?. Drying fabric only. Painting fabric. Process of ironing fabric by treating it wet between a pair of hot and cold rollers to get a smooth surface.

Instrument markings?. Red – flap range; Blue – general operation. Red – caution only; Blue – max; White – min. Red – max & min operations; Blue – operation under certain conditions; Yellow – caution; White – flap operating range.

De-icing gauge measures?. Difference between prevailing atmospheric pressure and pressure inside system. Temperature of wing. Airflow rate.

Viscosity is?. Density of a fluid. Internal resistance to flow (e.g., gasoline flows easily – low viscosity, tar flows slowly – high viscosity). Temperature of a fluid.

Flashpoint?. Temperature at which liquid freezes. Temperature at which liquid boils. The temperature at which a liquid gives off vapor in sufficient quantity to ignite momentarily.

Angle of flared tube?. 30 degrees. 45 degrees. 37 degrees.

Rule when installing fairleads?. Allow minor contact. Cable can be bent freely. No contact allowed between the cable and structure; cable should not be deflected beyond 3 degrees.

Effect if the piston return spring broke in a brake master cylinder?. The brake would fail to engage. The brake would lock. The brake would drag.

Why do you place the propeller in low pitch for take-off?. To increase cruising speed. To reduce fuel consumption. To obtain maximum horsepower.

How do you remove a dent from the edge of a steel propeller?. Sand only. Hammer it back into shape. File to smooth curve and polish (use ruff file and crocus cloth).

How do you track a wooden propeller blade if out of track?. Remove the hub and re-balance. Adjust blade pitch only. Place shims to the rear of hub, between hub plate and shaft boss.

How is a wooden propeller balanced?. By sanding the blade. Adding washers at the hub. By applying solder to the tipping.

If figuring the most forward and rearward CG limits using minimum fuel, you should use?. 0.05 gallons per horsepower. 0.1 gallons per horsepower. 0.083 gallons per horsepower.

Aluminum alloy bolts less than ¼" in diameter?. Can be used if annealed. Cannot be used in the primary structure of an airplane. Can be used with fiber nuts.

When hand sewing using the baseball stitch, the stitching should be?. 6 stitches per inch. 2 stitches per inch. 4 stitches per inch minimum.

Safety belts in certificated aircraft must withstand max stress of?. 1,500 lbs. 500 lbs. 1,000 lbs.

Threads selected for hand sewing should have tensile strength per strand of at least?. 10 lbs. 14 lbs. 20 lbs.

Procedure for badly corroded alclad?. Sand only. Treat with chromic acid. Use water rinse.

Rivets made from 17S material are identified by?. Colored dot. Raised nipple on the head. Flat head.

Junction boxes should be mounted with the open side facing downward. This arrangement permits?. Faster cooling of components. Loose metallic objects such as washers, bolts, etc., to fall out and prevent possible short circuits. Easier wiring access.

The final balancing of a metal propeller is obtained by?. Adding washers to the hub. Inserting lead wool in the concentric holes. Sanding the blades.

What physical factors are involved in the aspect ratio of airplane wings?. Span and chord. Thickness and sweep. Weight and load.

The proper inflation of a strut is determined by?. Pressure gauge only. The mark on the inner strut sleeve. Length of the tire.

You are given a problem utilizing the formula "E = I × R". The problem would involve the application of?. Power law. Ohm’s law. Kirchhoff’s law.

What is a gascolator?. Fuel pump filter. Main fuel screen for small aircraft made from glass. Carburetor inlet filter.

How do you detect fouled spark plugs?. Fuel will be black and sooty; oil wet; dark carbon deposits on firing end. Spark plug will glow red. Engine RPM increases.

Maximum number of repairs to a wooden spar?. Not more than 2 splices in any one spar. 1 splice. 3 splices.

Calculate the most forward movement of C of P when the wing chord is 100 inches?. 30 inches. 20 inches. 40 inches.

What do you call the width measurement either left or right of a vertical line through the aircraft?. Centerline. Buttock line. Waterline.

Airfoils perpendicular to a surface of a wing are called what?. Vortex generators. Flaps. Spoilers.

What is an adiabatic rate?. Increase or decrease in temperature of air for a given change in pressure without heat exchange. Temperature drop of fuel during compression. Rate of heat transfer across wing.

Why would you remove paint/anodizing when fitting bonding?. To reduce weight. To increase corrosion. To assure a low-resistance connection.

What do the white lines on an ASI indicate?. Stall warning. Maximum structural speed. Range of permissible limits of flap operation (flap extension speed).

What is the angle of incidence?. Angle between fuselage and horizon. Angle of propeller blade. Angle between wing chord and longitudinal axis of aircraft.

What is the angle of attack?. Angle between tailplane and wing. Angle between fuselage and airflow. Angle between wing chord and relative airflow.

What is the camber of a wing?. Wing twist. Wing thickness. Curvature of the mean line of an airfoil.

What is dihedral and where is it measured?. Angle between tip and root. Angle formed by lateral and horizontal planes, measured at front spar. Wing twist angle.

Positive stagger is what?. Opposite. When upper wing of a biplane is ahead of lower wing. Wing twist.

What do snubbers do?. Reduce wing vibration. Hydraulically check or cushion control surface movement on ground. Damp engine torque.

What is flutter and how is it corrected?. Engine vibration. Wing oscillation, corrected by trim. Control surface vibration, corrected by balancing or stiffening.

Identify a Warren truss fuselage. Wooden frame. Aluminum monocoque. Welded tubular steel structure carrying tension and compression.

In an aircraft heater, what does the thermostat control?. Cabin pressure. Fuel valve for combustion air temperature. Electrical fan speed.

What is datum?. Reference for vertical measurements. Imaginary plane from which all horizontal measurements are taken. Wingtip measurement.

What is an arm?. Horizontal distance from datum to equipment. Distance to wing tip. Vertical distance from fuselage.

What is aft datum?. At wing tip. Forward of datum. Point located behind the datum reference.

What is tare?. Maximum load. Weight of equipment needed to weigh the aircraft. Empty fuel weight.

Stitches per inch for sewing machine. 12–14 stitches per inch. 8–10 stitches per inch. 4–6 stitches per inch.

Hand-sewn seam stitches per inch. 4 stitches per inch. 2 stitches per inch. 6 stitches per inch.

Deferred location for knots in rib lacing. Leading edge. Upper surface. Lower surface.

Tape over sewn repair minimum overlap. 2 inches. 1 inch. 1½ inches.

How should warp threads of fabric be installed?. Parallel to line of flight. Perpendicular to line of flight. Diagonal.

Best time to apply dope. 90°F, low humidity. 50°F, high humidity. 70°F, <65% humidity.

What causes pinholes in dope finish?. Too many coats. Overheating. Insufficient drying time between coats.

What is bias?. Widthwise cut. Lengthwise cut. Cut, fold, or seam made diagonally across the warp.

What causes orange peel when spraying?. Wrong brush. Overheating. Dope too thick, too far, or air too dry.

What causes stress corrosion on aluminum alloy fittings?. Vibration. High temperature. Static tensile stress.

How can resistance be checked?. Ammeter. Voltmeter. Using an ohmmeter.

What does a freighter tab do?. Opposite direction. Moves in the same direction as the desired movement. Neutral.

What must control locks have?. Lock without indicator. Heavy chain. Ribbon for easy identification.

Can dihedral be adjusted on an aircraft?. No. Yes. Only with wingtip modification.

Can you remove scratches from plexiglass?. Only small scratches. Yes. No.

Welding flux on aluminum is used to: Increase tensile strength. Improve surface hardness. Get rid of oxides.

Identification of rivets 2017S, 2117, & 2024 are: Small depression, cross pattern, angled marking. Flat head, angled marking, small dot. Raised nipple, small depression, broken marking across head.

To prevent corrosion in aluminum tubing it should be flushed with: Mineral oil only. Water only. Hot linseed oil, parelketone, or other corrosion inhibitor.

Soldered electrical splices should not be used because: They are too flexible. They expand too much. They are very brittle.

Zyglo is used to: Coat surfaces for paint adhesion. Lubricate metal surfaces. Inspect non-ferrous metal for surface cracks.

Stress corrosion of aluminum alloy fittings is caused by: Moisture only. Heat alone. Cyclic stress.

Split bus relay: Only powers lights. Only operates during battery charging. May be energized by either the battery or external power.

Purpose of the thermostat in a combustion heater system: Limit exhaust temperature. Adjust cabin airflow. Cycle the fuel solenoid.

Three types of wood used in aircraft: Maple, mahogany, cedar. Pine, bamboo, oak. Spruce, laminated, plywood.

Rivet pitch is: Thickness of the rivet. Head diameter. Distance between rivets in a row.

Two types of glue: Rubber cement, epoxy. Epoxy, hot glue. Casein, synthetic resin.

Color of 2S rivets: Green. Blue. Pink.

Number of protective coating on end grain plywood: 4. 1 only. Minimum 2, usually 3.

Grain deviation in wood: ½ inch in 10. 2 inches in 12. 1 inch in 15.

Bend radius of a wiring bundle should be: Equal to the diameter of the largest wire. Not less than 10 times the outer diameter of the bundle. Twice the diameter of the bundle.

Where can’t fiber lock nuts be used?. On aluminum fittings. In areas where temperature exceeds 250°F. On hydraulic lines.

Gauge to measure volts and frequency: Multimete. KVA. Ohmmeter.

Normalizing heat treatment: Heated rapidly and quenched in water. Cooled in air to relieve stresses. Heated in vacuum only.

Cabin warning horn on pressurized aircraft indicates: Cabin is descending. Cabin has climbed beyond predetermined point. Cabin oxygen low.

To increase heat from combustion heater: Increase airflow only. Fuel valve energized for longer period. Turn off fan.

Constant speed supercharger normally has: Only pressure relief valve. Pressurizing and dump valve. Only surge valve.

Dump solenoid in pressure-regulating valve is controlled by: Fuel valve. Touchdown switch. Cabin altitude sensor.

As cabin altitude climbs, turbo compressor RPM would normally: Decrease. Increase. Remain constant.

Constant speed supercharger airflow is controlled by: Pressure relief valve. Surge and dump valve. Manual lever.

Electrical wires through pressurized bulkhead are routed by: Direct wiring. Connector plugs. Conduit only.