Ch 2 - Airplane, Instruments, Engines & Systems - Questions 101 - 146 Flashcards
What steps must be taken when flying with glass cockpits to ensure safe flight?
Regularly scan both inside and outside, use all appropriate checklists and cross-check with other forms of information.
An aircraft which is equipped with an Electronic Flight Display (EFD) can
Offer new capabilities and simply the basic flying task.
You are flying an aircraft equipped with an electronic flight display and the air data computer fails. What instrument is affected?
Airspeed Indicator.
An abnormally high engine oil temperature indication may be caused by
The oil level being too low.
Excessively high engine temperature will
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
Cause loss of power, excessive oil consumption, and possible permanent internal engine damage.
For internal cooling, air cooled engines are especially dependent on
The circulation of lubricating oil.
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.
What action can a pilot take to aid in cooling an engine that is overheating during a climb?
Reduce rate of clim and increase airspeed.
What is one procedure to aid in cooling an engine that is overheating?
Enrich the fuel mixture.
How is engine operation controlled on an engine equipped with an constant-speed propeller?
The throttle controls power output as registered on the manifold pressure gauge and the propeller control resulted engine RPM.
A precaution for the operation of an engine equipped with a constant-speed propeller is to
Avoid high manifold pressure settings with low RPM.
What is an advantage of a constant-speed propeller?
Pemits the pilot to select the blade angle for the most efficient performance.
One purpose of the dual ignition system on an aircraft engine is to provide for
Improved engine performance.
If the ignition switch ground wire becomes disconnected, the magneto
May continue to fire.
The reason a 4-cylinder reciprocating engine continues to run after the ignition switch is positioned to OFF maybe be a
Broken magneto ground wire.
With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be
More susceptible to icing.
Which condition is most favourable to the development of carburetor icing?
Temperature between 20F and 70F and high humidity.
The possibility of carburetor icing exists even when the ambient air temperature is as
High as 70F and the relative humid is high.
If an aircraft is equipped with a fixed-pitch propeller and a float-typer carburetor, the first indication of carburetor ice would most likely be
Decrease RPM
In an aircraft is equipped with a fixed-propeller and float-type carburetor, the first indication of carburetor ice would most lily be
Loss of RPM.
The operating principle of float0type carburetors is based on the
Difference in air pressure as the Venturi thereat and the air vent.
The presence of carburetor ice is an aircraft equipped with a fixed-pitch propeller can be verified by applying carburetor heat and nothing
A decrease in RPM and then a gradual increase in RPM.
Generally speaking, the use of carburetor heat tends to
Decrease engine performance.
Applying carburetor heat will
Enrich the fuel/ air mixture.
What changes occurs in the fuel/air mixture when carburetor heat is applied?
The fuel/air mixture becomes richer.
During the run-up at 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?
Check the results contained with cleaner setting of the mixture.
The basic purpose of adjusting the fuel/air mixture at altitude is to
Decrease the fuel flow in order to compensate decreased air density.
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 fuel/air mixture may become excessively lean.
Fuel/air ratio is the ratio between the
Weight of fuel and weight of air entering the cylinder.
Detonation occurs in a reciprocating aircraft engine when
The unburned charge in the cylinders explodes instead of burning normally.
Detonation may occur at high-power settings when
The fuel mixture ignites instantaneously instead of burning progressively and evenly.
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
Lower the nose slightly to increase airspeed.
If the grade of fuel used in an aircraft engine is lower than specified for the engine, it will mist likely cause
Detonation.
The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as
Pre-ignition.
What type fuel can be substituted for an aircraft if the recommended octane is not available?
The next higher octane aviation gas.
Filing the fuel tanks after the last flight of the day is considered a good operating procured because this will
Moisture condensation by eliminating airspace in the tanks.
On aircraft equipped with fuel pumps, when is the auxiliary electric driven pump used?
In the event engine -driven fuel pump fails
Which would mist 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.
What should be the first action after stating an aircraft engine?
Adjust for proper RPM and check fro desired indications on the engine gauges.
During pre-flight in cold weather, crankcase breather lines should receive special attention because they are susceptible to being clogged by
Ice from crankcase vapours that have condensed and subsequently frozen.
An electrical system failure (battery and alternator) occurs during fight. In this situation, you would
Experience avionics equipment failure.
A positive indication on an ammeter
Shows the rate of charge on the battery.
To keep a battery charged, the alternator voltage output should be
Higher than the battery voltage.
Which of the following is a true statement concerning electrical systems?
Lights and radios use the electrical system for power.
