0 [{"id":220836,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 16:57:01","updated_at":"2017-06-20 17:35:49","questionName":"For internal cooling, air cooled engines are especially dependent on","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":3,"explanation":"An engine accomplishes much of its cooling by the flow of oil through the lubrication system. The lubrication system aid in cooling by reducing friction and absorbing heat from internal engine parts. Many airplane engines use an oil cooler, a small radiat","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":220868,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 18:33:07","updated_at":"2017-06-14 20:04:28","questionName":"The possibility of carburetor icing exists even when the ambient air temperature is as","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":14,"explanation":"The most favorable condition for carburetor icing is when the temperature is between 20 degrees F and 70 degrees F. 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Airspeed will increase if the rate of climb is reduced.","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":220833,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 16:52:24","updated_at":"2022-07-06 03:52:25","questionName":"An abnormally high engine oil temperature indication may be caused by","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":0,"explanation":"Operating with an excessively low oil level prevents the oil from being cooled adequately; i.e., an inadequate supply of oil will not be able to transfer engine heat to the engine's oil cooler (similar to a car engine's water radiator). Insufficient oil m","question_score_id":null,"lang":"","questionAudioPath":null},{"id":220834,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 16:53:40","updated_at":"2022-07-06 03:52:48","questionName":"Excessively high engine temperatures will","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":1,"explanation":"Excessively high engine temperatures will result in loss of power, excessive oil consumption, and possible permanent internal engine damage.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":220835,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 16:55:22","updated_at":"2017-06-14 20:04:28","questionName":"Excessively high engine temperatures, either in the air or on the ground, will","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":2,"explanation":"Operating the engine at excessively high temperatures will cause loss of power and excessive oil consumption, and can permanently damage engines.","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":220866,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 18:00:08","updated_at":"2017-06-14 20:04:28","questionName":"With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":12,"explanation":"Float-type carburetor systems are generally more susceptible to icing than fuel-injected engines due to the cooling effect resulting from fuel vaporization and a decrease in air pressure at the venturi in a carburetor. When there is high humidity and the ","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":220864,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 17:55:55","updated_at":"2017-06-14 20:04:28","questionName":"One purpose of the dual ignition system on an aircraft engine is to provide for","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":10,"explanation":"Most airplane engines are equipped with dual ignition systems, which have two magnetos to supply the electrical current to two spark plugs for each combustion chamber. 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The throttle controls the power output of the engine, which is registered on the manifold pressure gauge. This is a simple barometer that measures th","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":220862,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 17:51:03","updated_at":"2017-06-14 20:04:28","questionName":"A precaution for the operation of an engine equipped with a constant-speed propeller is to","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":8,"explanation":"For any given RPM, there is a manifold pressure that should not be exceeded. Manifold pressure is excessive for a given RPM when the cylinder design pressure is exceeded, placing undue stress on them. If repeated or extended, the stress would weaken the c","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":220837,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 16:58:47","updated_at":"2022-07-06 03:54:05","questionName":"If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating rage, the pilot may have been operating with","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":4,"explanation":"If the engine oil temperature and cylinder head temperature gauges exceed their normal operating range, it is possible that the power setting is too high and the fuel\/air mixture is set excessively lean. These conditions may cause engine overheating.","question_score_id":null,"lang":"","questionAudioPath":null},{"id":220867,"quiz_id":"12936","answer_id":null,"answerType_id":"0","created_at":"2017-06-14 18:02:27","updated_at":"2022-07-06 03:56:49","questionName":"Which condition is most favorable to the development of carburetor icing?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":13,"explanation":"The most favorable condition for carburetor icing is when the temperature is between 20 degrees F and 70 degrees F. Due to the sudden cooling that takes place in the carburetor, icing can occur even with temperatures as high as 100 degrees F and humidity ","question_score_id":null,"lang":"","questionAudioPath":null}]

block

For internal cooling, air cooled engines are especially dependent on

Select the correct answer(s).  

(0/0)

Explanation

An engine accomplishes much of its cooling by the flow of oil through the lubrication system. The lubrication system aid in cooling by reducing friction and absorbing heat from internal engine parts. Many airplane engines use an oil cooler, a small radiat

---

the circulation of lubricating oil

a properly functioning thermostat.

air flowing over the exhaust manifold.

none

The possibility of carburetor icing exists even when the ambient air temperature is as

Select the correct answer(s).  

(0/0)

Explanation

The most favorable condition for carburetor icing is when the temperature is between 20 degrees F and 70 degrees F. Due to sudden cooling that takes place in the carburetor, icing can occur even with the temperatures as high as 100 degrees F and humidity

---

low as 0 degrees F an the relative humidity is high.

high as 95 degrees F and there is visible moisture.

high as 70 degrees F and the relative humidity is high.

none

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

Select the correct answer(s).  

(0/0)

Explanation

If an airplane is overheating during a climb, the engine temperature will be decrease if the airspeed is increased. Airspeed will increase if the rate of climb is reduced.

---

Increase climb speed and increase RPM.

Reduce climb speed and increase RPM.

Reduce rate of climb and increase airspeed.

none

An abnormally high engine oil temperature indication may be caused by

Select the correct answer(s).  

(0/0)

Explanation

Operating with an excessively low oil level prevents the oil from being cooled adequately; i.e., an inadequate supply of oil will not be able to transfer engine heat to the engine's oil cooler (similar to a car engine's water radiator). Insufficient oil m

---

operating with a too high viscosity oil

operating with an excessively rich mixture.

the oil level being too low.

none

Excessively high engine temperatures will

Select the correct answer(s).  

(0/0)

Explanation

Excessively high engine temperatures will result in loss of power, excessive oil consumption, and possible permanent internal engine damage.

---

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

not appreciably affect an aircraft engine.

cause damage to heat-conducting hoses and warping of the cylinder cooling fins.

none

Excessively high engine temperatures, either in the air or on the ground, will

Select the correct answer(s).  

(0/0)

Explanation

Operating the engine at excessively high temperatures will cause loss of power and excessive oil consumption, and can permanently damage engines.

---

increase fuel consumption and may increase power due to the increase heat.

result in damage to heat-conducting hoses and warping of cylinder cooling fans.

cause loss of power, excessive oil consumption, and permanent internal engine damage.

none

With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be

Select the correct answer(s).  

(0/0)

Explanation

Float-type carburetor systems are generally more susceptible to icing than fuel-injected engines due to the cooling effect resulting from fuel vaporization and a decrease in air pressure at the venturi in a carburetor. When there is high humidity and the

---

less susceptible to icing.

more susceptible to icing.

equally susceptible to icing.

none

One purpose of the dual ignition system on an aircraft engine is to provide for

Select the correct answer(s).  

(0/0)

Explanation

Most airplane engines are equipped with dual ignition systems, which have two magnetos to supply the electrical current to two spark plugs for each combustion chamber. The main advantages of the dual system are increased safety and improved burning and co

---

uniform heat distribution.

improve engine performance.

balanced cylinder head pressure.

none

If the ignition switch ground wire becomes disconnected, the magneto

Select the correct answer(s).  

(0/0)

Explanation

Loose or broken wires in the ignition system can cause problems. For example, if the ignition switch is OFF, the magneto may continue to fire if the ignition switch ground wire is disconnected. If this occurs, the only way to stop the engine is to move

---

will not operate because the battery is disconnected from the circuit

may continue to fire.

will not operate.

none

What is an advantage of a constant-speed propeller?

Select the correct answer(s).  

(0/0)

Explanation

A controllable-pitch propeller (constant-speed) permits the pilot to select the blade angle that will result in the most efficient performance given the flight conditions. A low blade angle and a decreased pitch reduces the propeller drag and allows more

---

Permits the pilot to select the blade angle for the most efficient performance.

Permits the pilot to select and maintain a desired cruising speed.

provides a smoother operation with stable RPM and eliminates vibrations.

none

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

Select the correct answer(s).  

(0/0)

Explanation

Enriched fuel mixtures have a cooling effect on an engine.

---

Increase the RPM

Reduce the airspeed.

Enrich the fuel mixture.

none

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

Select the correct answer(s).  

(0/0)

Explanation

Airplanes equipped with controllable-pitch propellers have both a throttle control and propeller control. The throttle controls the power output of the engine, which is registered on the manifold pressure gauge. This is a simple barometer that measures th

---

The throttle controls power output as registered on the manifold pressure gauge and the propeller control regulates a constant blade angle.

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

The throttle controls engine RPM as registered on the tachometer and the mixture control regulates the power output.

none

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

Select the correct answer(s).  

(0/0)

Explanation

For any given RPM, there is a manifold pressure that should not be exceeded. Manifold pressure is excessive for a given RPM when the cylinder design pressure is exceeded, placing undue stress on them. If repeated or extended, the stress would weaken the c

---

always use a rich mixture with high RPM settings.

avoid high RPM settings with high manifold pressure.

avoid high manifold pressure settings with low RPM.

none

If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating rage, the pilot may have been operating with

Select the correct answer(s).  

(0/0)

Explanation

If the engine oil temperature and cylinder head temperature gauges exceed their normal operating range, it is possible that the power setting is too high and the fuel/air mixture is set excessively lean. These conditions may cause engine overheating.

---

the mixture set too rich.

higher-than-normal oil pressure

too much power and with the mixture set too lean.

none

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

Select the correct answer(s).  

(0/0)

Explanation

The most favorable condition for carburetor icing is when the temperature is between 20 degrees F and 70 degrees F. Due to the sudden cooling that takes place in the carburetor, icing can occur even with temperatures as high as 100 degrees F and humidity

---

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

Temperature between 32 degrees F and 50 degrees F and low humidity

Temperature between 20 degrees F and 70 degrees F and high humidity.