Aircraft Systems Flashcards
3357- Should it. became necessary to hand prop an airplane engine, it is extremely important that a competent pilot
Be at the controls of the airplane
3356- What should be the first action after starting an airplane engine
Adjust for proper RPM and check desired indications on engine gauges
3651-1- What is one purpose for using reciprocating engines
The are relatively simple and easy to operate
3223- One purpose of the duel ignition system on an aircraft engine is to provide for
Improved engine performance
3223-1- An electrical system failure occurs during flight. In this situation, you would
Experience avionics equipment failure
3223-2- If the. ground wire between the magneto and the ignition system gets disconnected, the most noticeable result would be that the engine
Cannot be shut down by turning the. switch into the off position
2242- One purpose of the duel ignition system on a two cycle engine is to provide for
System redundancy in the ignition system
2238- An electrical system failure occurs in a magneto equipped aircraft during flight. In this situation you would
Experience avionics equipment failure
2364- Concerning the advantages of an aircraft generator or alternator, select the true statement
An alternator provides more electrical power at lower RPM than a generator
3225- The operating principal of float type carburetors is based on the
difference in air pressure between the Venturi throat and the air inlet
3226- The basic purpose of adjusting the fuel/air mixture at altitude is to
decrease fuel flow to compensate for decreased air density
3228- While cruising at 9,500MSL, the fuel air mixture properly adjusted. What will occur if a decent to 4,500MSL is made without readjusting the mixture
The fuel/air mixture may become excessively lean
3227- During the run up at high elevation airport, a pilot notices a slight 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
Check the results obtained with a leaner setting of the mixture
3231- If an airplane is equipped with a fixed pitch propellor and a float type carburetor, the first indication of carb ice would be
loss of RPM
3229- Which condition is most favorable to carburetor icing
temp between 20-70F with high humidity
3230- Carburetor icing can occur with an OAT as high as
20C and high relative humidity
3232- Applying carburetor heat will
enrich the fuel/air mixture
3233- What change occurs in the fuel/air mixture when carburetor heat is applied
The fuel/air mixture is enriched
3234- Generally speaking, the use of carburetor heat tends to
decrease engine performance
3236- With regard to carburetor ice, float type carburetors in comparison to fuel injection systems are generally considered to be
more susceptible to icing
3241- Which condition is most favorable to carb ice
Temp between 20-70F
3224- On aircraft equipped with fuel pumps, when is the aux fuel pump used
In the even the engine driven fuel pump fails
3237- If the ride of fuel used in an aircraft engine is lower then specified for the engine, it will mostly likely cause
detonation
3238- Detonation may soccer at high power setting when
the fuel air mixture ignites instantaneously
3238-1- Detonation occurs in a reciprocating aircraft engine when
The unburned charge in the cylinders explodes instead of burning instantly
3240- The uncontrolled firing of the fuel/air charge in advance if normal spark ignition is known as
pre-ignition
3242- What type of fuel can be substituted for an aircraft if the recommended octane is not available
The next highest octane aviation gas
3243- Filling the fuel tanks after the last flight of the day is considered good operating procedure because this will
Prevent moisture condensation by eliminating airspace in the tanks
3243-1- To properly purge water from the fuel system of an aircraft equipped with tank sumps and a fuel strainer quick drain, it is necessary to drain the fuel from
fuel strainer drain and the fuel tank sumps
2353- 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
3239- If the pilot suspects that the engine (with a fixed pitched propeller) is detonating during climb out after takeoff, the initial corrective action would be to
Lower nose slightly to increase airspeed
3221- Excessively high engine temperatures will
Cause loss of power, excessive oil consumption, and possible permanent internal engine damage
3221-1- Excessively high engine temperatures, either in the air or on the ground, will
Cause loss of power, excessive oil consumption, and possible permanent internal engine damage
3222- If the engine oil temperature and cylinder head temperature gauges have exceeded their normal operating range, the pilot may have been operating with
too much power and with the mixture set too lean
3241- Which would most likely cause the cylinder head temperature and engine oil temperature gauges to exceed their normal operating ranges
Using fuel that has a lower than specified fuel rating
3244- For internal cooling, reciprocating engines are especially dependent on
The circulation of lubricating oil
2354- Which is true regarding preheating an aircraft during cold weather operations
The cabin area as well as the engine should be preheated
3245- An abnormally high engine oil temperature indication may be caused by
The oil level being too low
3651- What action can a pilot take to aid in cooling an engine that is overheating during a climb
Reduce climb and increase airspeed
3652- What is one procedure to aid in an engine that is overheating
Enrichen fuel mixture
3711- The most important rule to remember in the event of a power failure after becoming airborne is
immediately establish proper gliding attitude and airspeed
3653- How is engine operation controlled on an engine equipped with a constant speed propeller
The throttle controls power output as registered on the manifold pressure gauge and the propeller regulates RPM
3654- What is an advantage of a constant speed propeller
Permits the pilot to select the blade angle for the most efficient performance
3655- A precaution for the operation of an engine equipped with a constant-speed propeller is to
Avoid high manifold pressure settings with low RPM
3207- In what flight condition is torque effect the greatest in a single engine airplane
low airspeed, high power, high angle of attack
3208- The let turning tendency of an airplane caused by P-factor is the result of the
Propeller blade descending to the right, producing more thrust than the ascending blade on the left
When does P-factor cause the airplane to turn to the left
When at high angles of attack.
