Chapter 2.0 (1-38)

chapter-2a

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Question 1 of 1

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Detonation may occur at high-power settings when

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Explanation

GFDPP-2-25, PHB Detonation occurs when the fuel/air mixture suddenly explodes in the cylinders instead of burning smoothly. Detonation is caused by excessively lean mixtures while hot spots in the cylinder describes pre-ignition.

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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

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Explanation

GFDPP 2-26, PHB Detonation can occur when the engine overheats. One action to help cool the engine is to increase airspeed thus increasing the cooling airflow around the engine.

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The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as

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Explanation

GFDPP 2-26, PHB Pre-ignition occurs when the fuel/air mixture ignites too soon.

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Which would most likely cause the cylinder head temperature and engine oil temperature gauges to exceed their normal operating ranges?

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Explanation

GFDPP 2-30, PHB Lower grade fuels will detonate under less pressure. Using a lower fuel rating than specified can cause excessive engine temperatures.

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

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Explanation

GFDPP 2-30, PHB If the manufacturer’s recommendations are followed, the next higher grade of fuel may normally be used.

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Filling the fuel tanks after the last flight of the day is considered a good operating procedure because this will

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Explanation

GFDPP 2-29, PHB As the airplane cools overnight, water condenses in the tanks from vapor in the air and enters the fuel. Filling the tanks eliminates the air space and prevents condensation.

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For internal cooling, reciprocating aircraft engines are especially dependent on

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Explanation

GFDPP 2-32, PHB Engine oil lubricates moving parts, reduces friction, and removes some of the heat from the cylinders.

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An abnormally high engine oil temperature indication may be caused by

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Explanation

GFDPP 2-33, PHB If the oil level is too low, it can cause high engine oil temperatures.

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What action can a pilot take aid in cooling an engine that is overheating during a climb?

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Explanation

GFDPP 2-35, PHB Reducing the rate of climb and increasing airspeed will increase the cooling airflow around the engine.

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What is one procedure to aid in cooling an engine that is overheating?

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Explanation

GFDPP 2-35, PHB A richer fuel mixture burns at a slightly lower temperature and helps cool the engine.

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How is engine operation controlled on an engine equipped with a constant-speed propeller?

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Explanation

GFDPP 2-38, PHB The throttle controls the power output of the engine, which is indicated on the manifold pressure gauge. The propeller control changes the pitch of the propeller blades, thus controlling engine RPM, which is indicated on the tach

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What is an advantage of a constant-speed propeller?

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Explanation

GFDPP 2-38, PHB By selecting the proper blade angle, the pilot can convert a high percentage of engine power into thrust over a wide range of RPM and airspeed combinations. This allows the most efficient performance to be gained from the engine.

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A precaution for the operation of an engine equipped with a constant-speed propeller is to

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Explanation

GFDPP 2-39, PHB For a given RPM setting, there is a maximum allowable manifold pressure. Generally, high manifold pressures with low RPM should be avoided to prevent internal stress within the engine.

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What should be the first action after starting an aircraft engine?

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Explanation

GFDPP 2-33, PHB Immediately after starting an engine, set the proper RPM and check engine gauges for proper indications.

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Should it become necessary to handprop an airplane engine, it is extremely important that a competent pilot

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Explanation

GFDPP 2-39, PHB When hand-propping an airplane, a competent pilot must be at the controls to prevent the airplane from moving and to set the engine controls properly.

Chapter 2.0 (1-38)

Question 1 of 1

Time Left

Detonation may occur at high-power settings when

Select the correct answer(s).

(0/0)

Explanation

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

Select the correct answer(s).

(0/0)

Explanation

The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as

Select the correct answer(s).

(0/0)

Explanation

Which would most likely cause the cylinder head temperature and engine oil temperature gauges to exceed their normal operating ranges?

Select the correct answer(s).

(0/0)

Explanation

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

Select the correct answer(s).

(0/0)

Explanation

Filling the fuel tanks after the last flight of the day is considered a good operating procedure because this will

Select the correct answer(s).

(0/0)

Explanation

For internal cooling, reciprocating aircraft engines are especially dependent on

Select the correct answer(s).

(0/0)

Explanation

An abnormally high engine oil temperature indication may be caused by

Select the correct answer(s).

(0/0)

Explanation

What action can a pilot take aid in cooling an engine that is overheating during a climb?

Select the correct answer(s).

(0/0)

Explanation

What is one procedure to aid in cooling an engine that is overheating?

Select the correct answer(s).

(0/0)

Explanation

How is engine operation controlled on an engine equipped with a constant-speed propeller?

Select the correct answer(s).

(0/0)

Explanation

What is an advantage of a constant-speed propeller?

Select the correct answer(s).

(0/0)

Explanation

A precaution for the operation of an engine equipped with a constant-speed propeller is to

Select the correct answer(s).

(0/0)

Explanation

What should be the first action after starting an aircraft engine?

Select the correct answer(s).

(0/0)

Explanation

Should it become necessary to handprop an airplane engine, it is extremely important that a competent pilot

Select the correct answer(s).

(0/0)

Explanation

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