ASA Ch 2 Flashcards by Charlotte Mays

Should it become necessary to handprop an airplane engine, it is extremely important that a competent pilot
A: call “contact” before touching the propeller
B: be at the controls in the cockpit
C: be in the cockpit and call out all commands

B: be at the controls in the cockpit

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What should be the first action after starting an aircraft engine?
A: Adjust for proper RPM and check for desired indications on the engine gauges
B: Place the magneto or ignition switch momentarily in the OFF position to check for proper grounding
C: Test each brake and the parking brake

A: Adjust for proper RPM and check for desired indications on the engine gauges

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What is one purpose for using reciprocating engines?
A: Heat is distributed better
B: To preserve cylinder head duration and maintain lower temperatures
C: They are relatively simple and inexpensive to operate

C: They are relatively simple and inexpensive to operate

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One purpose of the dual ignition system on an aircraft engine is to provide for
A: improved engine performance
B: uniform head distribution
C: balanced cylinder head pressure

A: improved engine performance

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An electrical system failure (battery and alternator) occurs during flight. In this situation, you would
A: experience avionics equipment failure
B: probably experience failure of the engine ignition system, fuel gauges, aircraft lighting system, and avionics equipment
C: probably experience engine failure due to the loss of the engine-driven fuel pump and also experience failure of the radio equipment, lights, and all instruments that require alternating current

A: experience avionics equipment failure

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If the ground wire between the magneto and the ignition switch becomes disconnected, the most noticeable result will be that the engine
A: will run very rough
B: cannot be started with the switch in the ON position
C: cannot be shut down by turning the switch to the OFF position

C: cannot be shut down by turning the switch to the OFF position

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One purpose of the dual ignition system on a two-cycle engine is to provide for
A: system redundancy in the ignition system
B: uniform heat distribution
C: balanced cylinder head pressure

A: system redundancy in the ignition system

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Concerning the advantages of an aircraft generator or alternator, select the true statement.
A: A generator always provides more electrical current than an alternator
B: An alternator provides more electrical power at lower engine RPM than a generator
C: A generator charges the battery during low engine RPM; therefore, the battery has less chance to become fully discharged, as often occurs with an alternator

B: An alternator provides more electrical power at lower engine RPM than a generator

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The operating principle of float-type carburetors is based on the
A: automatic metering of air at the venturi as the aircraft gains altitude
B: difference in air pressure at the venturi throat and the air inlet
C: increase in air velocity in the throat of a venturi causing an increase in air pressure

B: difference in air pressure at the venturi throat and the air inlet

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The basic purpose of adjusting the fuel/air mixture at altitude is to
A: decrease the amount of fuel in the mixture in order to compensate for increased air density
B: decrease the fuel flow in order to compensate for decreased air density
C: increase the amount of fuel in the mixture to compensate for the decrease in pressure and density of the air

B: decrease the fuel flow in order to compensate for decreased air density

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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?
A: The fuel/air mixture may become excessively lean
B: 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
C: The excessively rich mixture will create higher cylinder head temperatures and may cause detonation

A: The fuel/air mixture may become excessively lean

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During the run-up at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action?
A: Check the results obtained with a leaner setting of the mixture
B: Taxi back to the flight line for a maintenance check
C: Reduce manifold pressure to control detonation

A: Check the results obtained with a leaner setting of the mixture

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If an aircraft is equipped with a fixed-pitch propeller and a float-type carburetor, the first indication of carburetor ice would most likely be
A: increase of RPM
B: engine roughness
C: loss of RPM

C: loss of RPM

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The presence of carburetor ice in an aircraft equipped with a fixed-pitch propeller can be verified by applying carburetor heat and noting
A: an increase in RPM and then a gradual decrease in RPM
B: a decrease in RPM and then a constant RPM indication
C: a decrease in RPM and then a gradual increase in RPM

C: a decrease in RPM and then a gradual increase in RPM

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Which condition is most favorable to the development of carburetor icing?
A: Any temperature below freezing and a relative humidity of less than 50 percent
B: Temperature between 32 and 50 degrees F and low humidity
C: Temperature between 20 and 70 degrees F and high humidity

C: Temperature between 20 and 70 degrees F and high humidity

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The possibility of carburetor icing exists even when the ambient air temperature is as
A: high as 70F and relative humidity is high
B: high as 95F and there is visible moisture
C: low as 0F and the relative humidity is high

A: high as 70F and relative humidity is high

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Carburetor icing can occur with an OAT as high as
A: 100 F and visible moisture
B: 20 C and high relative humidity
C: 75 F and low relative humidity

B: 20 C and high relative humidity

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Applying carburetor heat will
A: result in more air going through the carburetor
B: enrich the fuel/air mixture
C: not affect the fuel/air mixture

B: enrich the fuel/air mixture

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What change occurs in the fuel/air mixture when carburetor heat is applied?
A: A decrease in RPM results from the lean mixture
B: The fuel/air mixture becomes richer
C: The fuel/air mixture becomes leaner

B: The fuel/air mixture becomes richer

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Generally speaking, the use of carburetor heat tends to
A: decrease engine performance
B: increase engine performance
C: have no effect on engine performance

A: decrease engine performance

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With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be
A: more susceptible to icing
B: equally susceptible to icing
C: less susceptible to icing

A: more susceptible to icing

C: Temperature between 20 and 70 degrees F and high humidity

On aircraft equipped with fuel pumps, when is the auxiliary electric driven fuel pump used?
A: All the time to aid the engine-driven fuel pump
B: In the event the engine-driven fuel pump fails
C: Constantly except in starting the engine

B: In the event the engine-driven fuel pump fails

If the grade of fuel used in an aircraft engine is lower than specified for the engine, it will most likely cause
A: a mixture of fuel and air that is not uniform in all cylinders
B: lower cylinder head temperatures
C: detonation

C: detonation

Detonation may occur at high-power settings when A: the fuel mixture ignites instantaneously instead of burning progressively and evenly B: an excessively rich fuel mixture causes an explosive gain in power C: the fuel mixture is ignited too early by hot carbon deposits in the cylinder

A: the fuel mixture ignites instantaneously instead of burning progressively and evenly

Detonation occurs in a reciprocating aircraft engine when A: the spark plugs are fouled or shorted out or the wiring is defective B: hot spots in the combustion chamber ignite the fuel/air mixture in advance of normal ignition C: the unburned charge in the cylinders explodes instead of burning normally

C: the unburned charge in the cylinders explodes instead of burning normally

The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as A: combustion B: pre-ignition C: detonation

B: pre-ignition

What type fuel can be substituted for an aircraft if the recommended octane is not available? A: The next higher octane aviation gas B: The next lower octane aviation gas C: Unleaded automotive gas of the same octane rating

A: The next higher octane aviation gas

Filling the fuel tanks after the last flight of the day is considered a good operating procedure because this will A: force any existing water to the top of the tank away from the fuel lines to the engine B: prevent expansion of the fuel by eliminating airspace in the tanks C: prevent moisture condensation by eliminating airspace in the tanks

C: prevent moisture condensation by eliminating airspace in the tanks

To properly purge water from the fuel system of an aircraft equipped with fuel tank sumps and a fuel strainer quick drain, it is necessary to drain fuel from the A: fuel strainer drain B: lowest point in the fuel system C: fuel strainer drain and the fuel tank sumps

C: fuel strainer drain and the fuel tank sumps

During preflight in cold weather, crankcase breather lines should receive special attention because they are susceptible to being clogged by A: congealed oil from the crankcase B: moisture from the outside air which has frozen C: ice from crankcase vapors that have condensed and subsequently frozen

C: ice from crankcase vapors that have condensed and subsequently frozen

If a pilot suspects that the engine (with a fixed-pitch propeller) is detonating during climb-out after takeoff, the initial corrective action to take would be to A: lean the mixture B: lower the nose slightly to increase airspeed C: apply carburetor heat

B: lower the nose slightly to increase airspeed

Excessively high engine temperatures will A: cause damage to heat-conducting hoses and warping of the cylinder cooling fins B: cause loss of power, excessive oil consumption, and possible permanent internal engine damage C: not appreciably affect an aircraft engine

B: cause loss of power, excessive oil consumption, and possible permanent internal engine damage

Excessively high engine temperatures, either in the air or on the ground, will A: increase fuel consumption and may increase power due to the increased heat B: result in damage to heat-conducting hoses and warping of cylinder cooling fans C: cause loss of power, excessive oil consumption, and possible permanent internal engine damage

C: cause loss of power, excessive oil consumption, and possible permanent internal engine damage

If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating range, the pilot may have been operating with A: the mixture set too rich B: higher-than-normal oil pressure C: too much power and with the mixture set too lean

C: too much power and with the mixture set too lean

Which would most likely cause the cylinder head temperature gauges to exceed their normal operating ranges? A: Using fuel that has a lower-than-specified fuel rating B: Using fuel that has a higher-than-specified fuel rating C: Operating with higher-than-normal oil pressure

A: Using fuel that has a lower-than-specified fuel rating

For internal cooling, reciprocating aircraft engines are especially dependent on A: a properly functioning thermostat B: air flowing over the exhaust manifold C: the circulation of lubricating oil

C: the circulation of lubricating oil

Which is true regarding preheating an aircraft during cold weather operations? A: The cabin area as well as the engine should be preheated B: The cabin area should not be preheated with portable heaters C: Hot air should be blown directly at the engine through the air intakes

A: The cabin area as well as the engine should be preheated

An abnormally high engine oil temperature indication may be caused by A: the oil level being too low B: operating with a too high viscosity oil C: operating with an excessively rich mixture

A: the oil level being too low

What action can a pilot take to aid in cooling an engine that is overheating during a climb? A: Reduce rate of climb and increase airspeed B: Reduce climb speed and increase RPM C: Increase climb speed and increase RPM

A: Reduce rate of climb and increase airspeed

What is one procedure to aid in cooling an engine that is overheating? A: Enrich the fuel mixture B: Increase the RPM C: Reduce the airspeed

A: Enrich the fuel mixture

The most important rule to remember in the event of a power failure after becoming airborne is to A: immediately establish the proper gliding attitude and airspeed B: quickly check the fuel supply for possible fuel exhaustion C: determine the wind direction to plan for the forced landing

A: immediately establish the proper gliding attitude and airspeed

How is engine operation controlled on an engine equipped with a constant-speed propeller? A: The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates engine RPM B: The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates a constant blade angle C: The throttle controls engine RPM as registered on the tachometer and the mixture control regulates the power output

A: The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates engine RPM

What is an advantage of a constant-speed propeller? A: Permits the pilot to select and maintain a desired cruising speed B: Permits the pilot to select the blade angle for the most efficient performance C: Provides a smoother operation with stable RPM and eliminates vibrations

B: Permits the pilot to select the blade angle for the most efficient performance

A precaution for the operation of an engine equipped with a constant-speed propeller is to A: avoid high RPM settings with high manifold pressure B: avoid high manifold pressure settings with low RPM C: always use a rich mixture with high RPM settings

B: avoid high manifold pressure settings with low RPM

In what flight condition is torque effect the greatest in a single-engine airplane? A: Low airspeed, high power, high angle of attack B: Low airspeed, low power, low angle of attack C: High airspeed, high power, high angle of attack

A: Low airspeed, high power, high angle of attack

The left turning tendency of an airplane caused by P-factor is the result of the A: clockwise rotation of the engine and the propeller turning the airplane counter-clockwise B: propeller blade descending on the right, producing more thrust than the ascending blade on the left C: gyroscopic forces applied to the rotating propeller blades acting 90 degrees in advance of the point the force was applied

B: propeller blade descending on the right, producing more thrust than the ascending blade on the left

When does P-factor cause the airplane to yaw to the left? A: When at low angles of attack B: When at high angles of attack C: When at high airspeeds

B: When at high angles of attack

During the preflight inspection who is responsible for determining the aircraft is safe for flight? A: The pilot in command B: The owner or operator C: The certified mechanic who performed the annual inspection

A: The pilot in command

How should an aircraft preflight inspection be accomplished for the first flight of the day? A: Quick walk around with a check of gas and oil B: Thorough and systematic means recommended by the manufacturer C: Any sequence as determined by the pilot-in-command

B: Thorough and systematic means recommended by the manufacturer

Who is primarily responsible for maintaining an aircraft in airworthy condition? A: Pilot-in-command B: Owner or operator C: Mechanic

B: Owner or operator