Chapter 2: Airplane Instruments, Engines, and Systems
What is one procedure to aid in cooling an engine that is overheating?
Enrich the fuel mixture.
Under what condition will true altitude be lower than indicated altitude?
In colder than standard air temperature.
Which color identifies the power-off stalling speed in a specified configuration?
Lower limit of the green arc.
Which color identifies the power-off stalling speed with wing flaps and landing gear in the landing configuration?
Lower limit of the white arc.
What is the full flap operating range for the airplane?
55 to 100 kts.
Under what condition is indicated altitude the same as true altitude?
When at sea level under standard conditions.
If a pilot changes the altimeter setting from 30.11 to 29.96, what is the approximate change in indication?
Altimeter will indicate 150 feet lower.
To receive accurate indications during flight from a heading indicator, the instrument must be
periodically realigned with the magnetic compass as the gyro precesses.
What does the red line on an airspeed indicator represent?
Never-exceed speed.
During flight, when are the indications of a magnetic compass accurate?
Only in straight-and-level unaccelerated flight.
How do variations in temperature affect the altimeter?
Pressure levels are raised on warm days and the indicated altitude is lower than true altitude.
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.
If the pitot tube and outside static vents become clogged, which instruments would be affected?
The altimeter, airspeed indicator, and vertical speed indicator.
Under which condition will pressure altitude be equal to true altitude?
When standard atmospheric conditions exist.
In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the east if
a left turn is entered from a north heading.
A precaution for the operation of an engine equipped with a constant-speed propeller is to
avoid high manifold pressure settings with low RPM.
Applying carburetor heat will
enrich the fuel/air mixture
With regard to carburetor ice, float-type carburetor systems in comparison to fuel injection systems are generally considered to be
more susceptible to icing.
A turn coordinator provides an indication of the
movement of the aircraft about the yaw and roll axes.
The uncontrolled firing of the fuel/air charge in advance of normal spark ignition is known as
pre-ignition.
Altimeter setting is the value to which the barometric pressure scale of the altimeter is set so the altimeter indicates
true altitude at field elevation.
