AES PPL

• 100 Grade AVGAS would be what color?

  a. Green

  b. Blue

  c. Clear/Straw

  d. Red

  A
• The large majority of aircraft are constructed using:

  a. mixed construction

  b. composites

  c. aluminum monocoque

  d. welded steel tubing

  C
• How are engines in most light aircraft primarily cooled?

  a. Liquid

  b. Oil

  c. Fans

  d. Air

  D
• Are the intake and exhaust valves in a four-stroke cycle engine ever open at the same time?

  a. No, unless the engine timing is off

  b. Yes, this is called valve lead

  c. Yes, this is called valve lag

  d. Yes, this is called valve overlap

  D
• An internal combustion engine produces best power by burning a fuel air mixture of approximately:

  a. Fourteen pounds of fuel to one pound of air

  b. Fourteen volumetric parts of fuel to one volumetric part of air

  c. Fourteen pounds of air to one pound of fuel

  d. Twelve pounds of air to one pound of fuel

  C
• When carburetor heat is being used for prolonged periods, it may be necessary to adjust the mixture due to the fact that warm air is less dense causing:

  a. a lean mixture

  b. a rich mixture

  c. an increase in power

  d. an increase in manifold pressure

  B
• What regulates oil pressure in the aero engine?

  a. pressure relief valve

  b. bypass filter

  c. pressure pump

  d. scavenging pump

  A
• In an aircraft with a fixed pitch propeller, one of the first symptoms of carb. icing is:

  a. Engine failure

  b. Engine roughness

  c. A loss of RPM

  d. Engine backfiring

  C
• If the ignition ground wire were to break in flight, what would be the result?

  a. Complete engine failure

  b. Slight loss of power

  c. No loss of power

  d. A slight rise in manifold pressure

  C
• An engine oil of too high a viscosity for existing climatic temperatures may cause:

  a. high oil pressure

  b. low oil pressure

  c. oil dilution

  d. a boil off process

  A
• The color of 100LL AVGAS is:

  a. Red

  b. Green

  c. Blue

  d. Clear

  C
• What quality does heptane produce in an aero fuel?

  a. minimum detonation properties

  b. maximum detonation properties

  c. cooling due to evaporation

  d. none of the above

  B
• A mixture control is provided for aircraft engines:

  a. Because they tend to run lean as altitude is gained

  b. Because they tend to run rich as altitude is gained

  c. As a means of shutting down the engine

  d. To increase the flow of air through the intake manifold as altitude is gained

  B
• What is the octane rating of blue AVGAS?

  a. 80

  b. 130

  c. 100

  d. 97

  C
• The volume of a cylinder when a piston is at bottom dead center (BDC), compared to the volume of the cylinder when the piston is at top dead center (TDC), is known as the:

  a. Power ratio

  b. Compression stroke

  c. Volumetric efficiency

  d. Compression ratio

  D
• A fuel containing too low an octane rating may cause:

  a. detonation

  b. excessive cooling due to evaporation in the cylinder

  c. contaminated spark plugs

  d. a rich mixture

  A
• Monocoque construction could best be described as:

  a. egg-shell construction

  b. stressed skin construction

  c. a mixture of aluminum and steel tubing

  d. a system of joining forgings

  B
• What is one of the advantages of using a fuel injection system over a carburetor?

  a. less moving parts

  b. reduces the risk of carburetor ice

  c. easy to maintain

  d. a mixture control is not required

  B
• The most common type of light aircraft piston engine is:

  a. the in-line configuration

  b. the radial arrangement

  c. the Vee type layout

  d. the horizontally opposed configuration

  D
• While turning base you select t/o flap, the A/C then quickly rolls to the left. What caused this?

  a. Right flap 10 degrees, left flap 0 degrees

  b. Aileron cables tangled in the flap selector handle

  c. Rudder required to control flap yaw

  d. Reason why left hand circuits are standard

  A
• Fuel is supplied to the engine on a typical low winged aircraft by:

  a. Two electric fuel pumps

  b. One engine driven fuel pump and a backup electrical fuel pump

  c. Two engine driven fuel pumps, one which is only turned on for take-off and landing

  d. Gravity, assisted by one electrical fuel pump used for emergency purposes only

  B
• Each time you reset a circuit breaker; it pops out again; what should you do?

  a. keep pushing it in until it stays

  b. leave the circuit breaker out, and upon landing "snag" the aircraft as "unserviceable", noting the reason

  c. nothing

  d. re-cycle the Master, then push the breaker in until it stays

  B
• What causes vapour lock in a fuel line?

  a. low atmospheric pressure, low temperatures

  b. high atmospheric pressure, low temperatures

  c. low atmospheric pressure, high temperature

  d. high atmospheric pressure, high temperature

  C
• Application of carburetor heat will cause the manifold pressure to:

  a. Rise slightly

  b. Fall slightly

  c. Stay the same, though propeller RPM will decrease

  d. Rise slightly because of a leaner mixture

  B
• If carburetor ice is present and carb. heat is applied, what will the reaction be?

  a. rough running engine

  b. smooth running engine

  c. rough running then smooth

  d. smooth running then rough

  C
• The function of a circuit breaker is to:

  a. Regulate the amount of electricity supplied by the battery

  b. Break the circuit between the magneto and the spark plugs

  c. Break the circuit between the battery and the magneto

  d. Protect the electrical circuits in the aircraft

  D
• Why is the formation of carburetor ice a threat to the pilot?

  a. It gradually closes off the fuel flow to the engine

  b. The ice mixes with the fuel and the air

  c. It makes the fuel/air mixture too cold to burn

  d. It gradually closes off the fuel flow to the injectors

  A
• What effect will a broken or disconnected magneto ground wire have on an aircraft engine during flight?

  a. there will be a slight loss of power

  b. the engine will run rough

  c. no effect

  d. power will decrease by 50%

  C
• Why should carburetor heat be kept to a minimum while taxiing?

  a. It does not matter

  b. So the engine will develop more power

  c. So foreign objects do not enter the intake

  d. To check for carburetor ice

  C
• Why should a rich mixture be used during a prolonged climb?

  a. to aid in engine cooling

  b. to provide more heat in the lower temperatures

  c. to provide a better rate of climb

  d.to provide better performance

  A
• How is the viscosity of oil identified?

  a. By how it pours from the can

  b. By the label; the higher the number, the thicker the oil

  c. By the A.M.E.

  d. By the owner's manual

  B
• What is a major disadvantage to the tail wheel aircraft:

  a. heavier undercarriage

  b. lower gross weight

  c. tendency to ground loop

  d. not well suited for rough fields

  C
• Where should you set the mixture for take-off at sea level?

  a. Full rich

  b. Full lean

  c. Idle cut off

  d. Leaned out just enough to give maximum RPM

  A
• Condensation in fuel tanks is best prevented by:

  a. using a chamois to filter fuel as it is put in the tanks

  b. draining the fuel tank sump quick drain valves before each flight

  c. filling the tanks after every flight

  d. using a lower octane fuel

  C
• When carb heat is applied during run up, there is no power drop, this would

  indicate:

  a. Carb heat not functioning

  b. No carb ice

  c. Mixture was to lean

  d. Should reduce throttle by

  A
• Piston engine power is usually rated in:

  a. Brake horsepower

  b. Equivalent net horsepower

  c. Pounds of static thrust

  d. BTU's ( British Thermal Units )

  A
• Detonation in an aircraft engine can be prevented in the short term by:

  a. opening the throttle

  b. running on one magneto only

  c. reducing power setting

  d. closing the cowl flaps

  C
• At what temperature would you expect the greatest possibility of carb icing:

  a. -18 degrees Celsius

  b. +32 degrees Celsius

  c. -6 degrees Celsius

  d. +10 degrees Celsius

  D
• Most light aircraft are equipped with an electrical system that operates on:

  a. 12 volts D.C.

  b. 400 volts A.C.

  c. 28 volts A.C.

  d. none of the above

  A
• Grade 80/87 fuel is colored:

  a. Red

  b. Blue

  c. Undyed

  d. Green

  A