Commercial Pilot – Stage 3 Exam

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Name

The spark plugs in a piston engine are provided with a high energy (or high tension) electrical supply from

the battery at start-up, and then the magnetos.

the battery at all times.

the magnetos.

None

While cruising at 9,500 feet MSL, the fuel/air mixture is properly adjusted. What will occur if a descent to 4,500 feet MSL is made without readjusting the mixture?

The excessively rich mixture will create higher cylinder head temperatures and may cause detonation.

The fuel/air mixture may become excessively lean.

There will be more fuel in the cylinders than is needed for normal combustion, and the excess fuel will absorb heat and cool the engine.

None

Which condition is most favorable to the development of carburetor icing?

Any temperature below freezing and a relative humidity of less than 50 percent.

Between 32°F and 50°F and low humidity.

Between 20°F and 70°F and high humidity.

None

In an airplane with a constant-speed propeller, which of the following procedures should be used?

When power is increased or decreased, adjust manifold pressure before rpm.

When power is decreased, reduce rpm before manifold pressure.

When power is increased, increase rpm before manifold pressure.

None

When operating a constant-speed propeller

always use a rich mixture with high rpm settings.

avoid low rpm setting with high manifold pressures.

avoid high rpm setting with high manifold pressures.

None

If the oil temperature gauge and the cylinder head temperature gauge are both reading higher than the normal operating range, a possible cause is

an over-rich mixture and too much power.

a too-lean mixture and too much power.

fuel with a higher-than-specified fuel rating.

None

What type of fuel can be substituted in an aircraft if the recommended octane is not available?

The next higher octane aviation gas.

Unleaded automotive gas of the same octane rating.

The next lower octane aviation gas.

None

If you allow a fuel tank to run dry in flight before changing tanks, you run the risk of

overheating the fuel pump, leading to failure.

pumping foreign matter into the fuel lines.

air being drawn into the fuel lines and causing a vapor lock.

None

The battery master switch should be turned to OFF after the engine is stopped to avoid the battery discharging through

the magnetos.

the electrical services connected to it.

the alternator or generator.

None

If the operational category of an airplane is listed as “utility” it would mean that this airplane could be operated in which of the following maneuvers?

Any maneuver except acrobatics or spins.

Limited acrobatics, including spins (if approved).

All types of acrobatics.

None

Which V-speed represents maximum landing gear extended speed?

VFE

VLO

VLE

None

Which combination of atmospheric conditions will reduce airplane takeoff and climb performance?

Low temperature, low relative humidity, and low density altitude.

High temperature, high relative humidity, and high density altitude.

High temperature, low relative humidity, and low density altitude.

None

Which procedure should you follow to avoid wake turbulence if a large jet crosses your course from left to right approximately 1 mile ahead and at your altitude?

Make sure you are slightly above the path of the jet.

Make sure you are slightly below the path of the jet and perpendicular to the course.

Slow your airspeed to VA and maintain altitude and course.

None

What is ground effect?

The result of the disruption of the airflow patterns about the wings of an airplane to the point where the wings will no longer support the airplane in flight.

The result of an alteration in airflow patterns increasing induced drag about the wings of an airplane.

The result of the interference of the surface of the earth with the airflow patterns about an airplane.

None

GIVEN

Temperature.............................................30°F

Pressure altitude......................................6,000 feet

Weight.......................................................3,300 pounds

Headwind.................................................20 knots

What is the total takeoff distance over a 50-foot obstacle?

1,300 feet.

1,500 feet.

1,100 feet.

None

Which maximum range factor decreases as weight decreases?

Maximum range angle-of-attack.

Maximum range airspeed.

Maximum range altitude.

None

What flight time is available, allowing for VFR day fuel reserve, under the following conditions if the mixture is leaned correctly?

Pressure altitude............................ 18,000 ft

Temperature................................... -21°C

Power.............................................. 2,400 rpm, 28" MP

Usable fuel...................................... 425 lb

5 hours 28 minutes.

3 hours 14 minutes.

4 hours 01 minutes.

None

A military air station can be identified by a rotating beacon that emits

green, yellow, and white flashes.

two, quick, white flashes between green flashes.

white and green alternating flashes.

None

A flashing white light signal from the control tower to a taxiing aircraft is an indication to

taxi only on taxiways and not cross runways.

return to the starting point on the airport.

taxi at a faster speed.

None

After landing at a tower-controlled airport, when should the pilot contact ground control?

After reaching a taxiway that leads directly to the parking area.

Prior to turning off the runway.

When advised to do so by the tower.

None

Leaving the carburetor heat on while taking off

will decrease the takeoff distance.

leans the mixture for more power on takeoff.

will increase the ground roll.

None

For internal cooling, reciprocating aircraft engines are especially dependent on

the circulation of lubricating oil.

a properly functioning cowl flap augmenter.

the proper freon/compressor output ratio.

None

To develop maximum power and thrust, a constant-speed propeller should be set to a blade angle that will produce a

small angle of attack and high RPM.

large angle of attack and low RPM.

large angle of attack and high RPM.

None

During preflight in cold weather, crankcase breather lines should receive special attention because they are susceptible to being clogged by

ice from crankcase vapors that have condensed and subsequently frozen.

moisture from the outside air which has frozen.

congealed oil from the crankcase.

None

Propeller efficiency is the

actual distance a propeller advances in one revolution.

ratio of geometric pitch to effective pitch.

ratio of thrust horsepower to brake horsepower.

None

Baggage weighing 90 pounds is placed in a normal category airplane’s baggage compartment which is placarded at 100 pounds. If this airplane is subjected to a positive load factor of 3.5 Gs, the total load of the baggage would be

315 pounds and would be excessive.

315 pounds and would not be excessive.

350 pounds and would not be excessive.

None

GIVEN:

Total weight.................................................4,137 lb

CG location.................................................Station 67.8

Fuel consumption.......................................13.7 GPH

Fuel CG........................................................Station 68.0

After 1 hour 30 minutes of flight time, the CG would be located at station

67.79.

70.78.

68.79.

None

Rwy 30 is being used for landing. Which surface wind would exceed the airplane’s crosswind capability of 0.2 VSO, if VSO is 60 knots?

275° at 25 knots.

315° at 35 knots.

260° at 20 knots.

None

Which type of approach and landing is recommended during gusty wind conditions?

A power-on approach and power-on landing.

A power-on approach and power-off landing.

A power-off approach and power-on landing.

None

Using a maximum rate of climb, how much fuel would be used from engine start to 6,000 feet pressure altitude?

Aircraft weight.................................................. 3,200 lb

Airport pressure altitude................................. 2,000 ft

Temperature...................................................... 27°C

24 pounds.

14 pounds.

10 pounds.

None

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Commercial Pilot – Stage 3 Exam

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