General 1 Air frame 1 Powerplant General 2 Airframe 2

100

What is A) Inductive Reactance
What is the opposition to the flow of AC produced by a magnetic field with generated back voltage (EMF) called? A) Inductive reactance. B) Capacitive reactance. C) Mutual inductance.

100

What is: C) Decay is not acceptable in any form or amount. When inspecting a wooden aircraft structure, examine all stains and discolorations carefully to determine whether or not they are harmless or in a stage of preliminary or advanced decay. All pieces must be free from rot, dote, red heart, purple heart, and all other forms of decay.
Which statement about wood decay is correct? A) Decay that occurs before the wood is seasoned does not affect the strength of the finished piece. B) A limited amount of certain kinds of decay is acceptable in aircraft woods since decay affects the binding between the fibers and not the fibers themselves. C) Decay is not acceptable in any form or amount.

100

What is: C) Low oil temperatures. All of the alternatives except low oil temperature would likely be caused by failed or failing engine bearings in a reciprocating engine.Low oil temperature would be the least likely of these alternatives.
Which condition would be the least likely to be caused by failed or failing engine bearings? A) Excessive oil consumption. B) High oil temperatures. C) Low oil temperatures.

100

What is: A) Distance The arm used in weight and balance computation is the distance, in inches, between the center of gravity of an object and the aircraft datum.
What type of measurement is used to designate the arm in weight and balance computation? A) Distance. B) Weight. C) Weight x distance.

100

What is: B)a pulling tool. Cherrymax and Olympic-Loc rivets are types of blind rivets that are installed by inserting them into the hole and pulling the stem with a special pulling tool. When the stem is pulled, a taper swells the end of the shank and upsets it. Continued pulling breaks the stem off and leaves part of it in the hollow shank to reinforce it.
The installation of Cherrymax and Olympic-Lok rivets is accomplished by utilizing A)rivet gun, special rivet set, and bucking bar. B)a pulling tool. C)ordinary hand tools.

200

What is: C) Two lights requiring 3 amperes each in a 24-volt parallel system.
Which requires the most electrical power during operation? (Note: 1 horsepower = 746 watts) A) A 12-volt motor requiring 8 amperes. B) Four 30-watt lamps in a 12-volt parallel circuit. C) Two lights requiring 3 amperes each in a 24-volt parallel system.

200

What is: B) cotton and linen. Since cotton and linen are both natural fibers they are susceptible to mildew and fungal growth. To prevent the fabric from being weakened or destroyed, a fungicide must be mixed with the first coat of fabric dope. This mixture must completely saturate the fabric so all the fibers are completely encapsulated.
ungicide and mildewicide additives are important for fabric covered aircraft, such as A) cotton and dacron. B) cotton and linen. C) glass and linen.

200

What is:C) preignition and burned valves. If a valve is ground with a feather edge (a thin edge) the heat in the cylinder will cause the thin area to glow red hot and this will ignite the fuel-air mixture before the correct time for ignition. This will result in preignition and burned valves.
Grinding the valves of a reciprocating engine to a feather edge is likely to result in A)normal operation and long life. B) excessive valve clearance. C) preignition and burned valves.

200

What is: C) Weight and balance procedures for airplanes generally also apply to helicopters. When computing the weight and balance of an aircraft, it makes no difference whether the aircraft has a fixed wing or a rotary wing. The procedures are the same, but the actual effect of weight and balance is more critical for a helicopter than for a fixed-wing aircraft
Which statement is true regarding helicopter weight and balance? A) Regardless of internal or external loading, lateral axis cg control is ordinarily not a factor in maintaining helicopter weight and balance. B) The moment of tail-mounted components is subject to constant change. C) Weight and balance procedures for airplanes generally also apply to helicopters.

200

What is: B) must be constructed of material such as titanium or corrosion resistant steel. One of the problems with carbon/graphite as a structural material is the fact that aluminum alloys in contact with it will corrode. For this reason fasteners used with carbon/graphite must be made of a corrosion-resistant material such as titanium or corrosion-resistant steel.
etal fasteners used with carbon/graphite composite structures A)may be constructed of any of the metals commonly used in aircraft fasteners. B)must be constructed of material such as titanium or corrosion resistant steel. C)must be constructed of high strength aluminum-lithium alloy.

300

What is: B) 6 amps The total resistance of this circuit is 2 ohms. The total current flowing in this circuit is 6 amps.
In a parallel circuit with three 6-ohms resistors across a 12-volt battery, what is the total current (It) value in the circuit? A)2 amps. B)6 amps. C)12 amps.

300

What is: B) remove grease from fabric. Acetone is a fast-evaporating dope solvent that is suitable for removing grease from fabric prior to doping. It is also used for cleaning paint spray guns and as an ingredient in paint and varnish removers.
A correct use for acetone is to A) thin zinc chromate primer. B) remove grease from fabric. C) thin dope.

300

What is: B) eliminate valve spring surge. Every mechanical device has a resonant frequency. If the valve is operating at the resonant frequency of the valve spring, the spring will lose its effectiveness and will surge, allowing the valve to float.By using two or more valve springs wound with a different pitch and a different size wire, the resonant frequency of the springs will be different and there will be no engine RPM at which point, the valves will float.
The purpose of two or more valve springs in aircraft engines is to A)equalize side pressure on the valve stems. B)eliminate valve spring surge. C)equalize valve face loading.

300

What is: B) unusable fuel. The amount of fuel to be in the aircraft when it is weighed for purposes of finding its empty weight is only the unusable fuel. If the aircraft is weighed with full fuel tanks, the weight of the fuel must be subtracted from the weight found by the scales. The weight of the unusable fuel and its CG can be found in the Type Certificate Data Sheet for the aircraft.
The amount of fuel used for computing empty weight and corresponding CG is A) empty fuel tanks. B) unusable fuel. C) the amount of fuel necessary for 1/2 hour of operation.

300

What is: A) Bleeder. The bleeder is the absorbent material which is used to absorb the excess resin that is squeezed from the plies that are being cured by the vacuum bag process.
What is the material layer used within the vacuum bag pressure system to absorb excess resin during curing called? A) Bleeder. B) Breather. C) Release.

400

What is: A) base is negative with respect to the emitter. A P-N-P transistor conducts between the emitter and collector (is turned on) when a small amount of current flows into the base. This current flows when the emitter-base junction is forward biased. It is forward biased when the base is negative with respect to the emitter.
In a P-N-P transistor application, the solid state device is turned on when the A) base is negative with respect to the emitter. B) base is positive with respect to the emitter. C) emitter is negative with respect to the base.

400

What is: B) Static electricity buildup. When dry-sanding a fabric-covered surface, be sure to electrically ground it to a cold water pipe or some other good electrical ground. Rubbing the sandpaper over the surface will generate enough static electricity that a spark could be caused to jump and ignite the highly flammable fumes inside the structure.
Which of the following is a hazard associated with sanding on fabric covered surfaces during the finishing process? A) Overheating of the fabric/finish, especially with the use of power tools. B) Static electricity buildup. C) Embedding of particles in the finish

400

What is: C)cylinder volume with piston at bottom dead center and at top dead center. he compression ratio of a reciprocating engine is the ratio of the volume of the cylinder with the piston at the bottom of its stroke to the volume of the cylinder with the piston at the top of its stroke
Compression ratio is the ratio between the A)piston travel on the compression stroke and on the intake stroke. B)combustion chamber pressure on the combustion stroke and on the exhaust stroke. C)cylinder volume with piston at bottom dead center and at top dead center.

400

What is: C)providing bends in the tubing. Never select a path for a rigid fluid line that does not require bends in the tubing. Bends are necessary to permit the tubing to expand and contract under temperature changes and to absorb vibration.
Excessive stress on fluid or pneumatic metal tubing caused by expansion and contraction due to temperature changes can best be avoided by A)using short, straight sections of tubing between fixed parts of the aircraft. B)using tubing of the same material as the majority of the adjoining structure. C)providing bends in the tubing.

400

What is:B)1 and 4 Preimpregnated materials, or prepregs, are fabrics that are uniformly impregnated with the matrix resins. They are rolled up and stored in a refrigerator to prevent their curing until they are to be used. One side of the material is covered with a plastic backing to prevent its sticking together while it is stored.To make a prepreg composite lay-up, cut the plies to size, remove the plastic backing, lay the plies up observing the correct ply orientation, and apply pressure and external heat.
roper pre-preg composite lay-up curing is generally accomplished by1. applying external heat.2. room temperature exposure.3. adding a catalyst or curing agent to the resin.4. applying pressure. A)2 and 3. B)1 and 4. C)1, 3, and 4.

500

What is: B) direction of fluid flow through the system. A schematic drawing of a hydraulic system would not show the specific location of any of the parts in the aircraft, nor the amount of pressure in the pressure and return lines, and in system components. A schematic drawing shows the way all of the components are connected together to form the complete system. It also shows the direction the fluid flows through the system.
A hydraulic system schematic drawing typically indicates the: A) specific location of the individual components within the aircraft. B) direction of fluid flow through the system. C) amount of pressure in the pressure and return lines, and in system components.

500

What is: B)shear loads. A properly designed rivet joint has the major part of the load in the rivets as a shear load.
A well-designed rivet joint will subject the rivets to A)compressive loads. B)shear loads. C)tension loads.

500

What is: C) By placing the rings in the cylinder and measuring the end-gap with a feeler gauge. The end gap in piston rings is measured by placing the piston ring inside the cylinder and pushing it up with the top of the piston so that it is square in the cylinder bore and in line with the cylinder flange.With the ring in this position, measure the distance between the two ends of the ring with a feeler gauge.
How is proper end-gap clearance on new piston rings assured during the overhaul of an engine? A) By accurately measuring and matching the outside diameter of the rings with the inside diameter of the cylinders. B) By using rings specified by the engine manufacturer. C) By placing the rings in the cylinder and measuring the end-gap with a feeler gauge.

500

What is: B The pressure of a fluid decreases at points where the velocity of the fluid increases. Bernoulli's principle is one of the most useful principles we have to explain the behavior of fluid (either liquid or gas) in motion. Bernoulli's principle tells us that if we neither add energy nor take any energy from fluid in motion, an increase in the velocity of the fluid (its kinetic energy) will result in a corresponding decrease in its pressure (its potential energy).
Which statement concerning Bernoulli's principle is true? A) The pressure of a fluid increases at points where the velocity of the fluid increases. B)The pressure of a fluid decreases at points where the velocity of the fluid increases. C)it applies only to gases and vaporized liquids.

500

What is: B) use short strips of fiberglass in the bonded repair Using a long strip of glass fiber and resin to attach a hinge to a large flat surface will cause the surface to warp, but if short strips of fiberglass are used to bond the fasteners to the panel, the warpage will be minimized
When repairing large, flat surfaces with polyester resins, warping of the surface is likely to occur. One method of reducing the amount of warpage is to A)add an extra amount of catalyst to the resin. B)use short strips of fiberglass in the bonded repair. C)use less catalyst than normal so the repair will be more flexible.

Test practice 1

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