Flight Instruments Flashcards
Under what condition will true altitude be lower than indicated altitude?
In colder than standard air temperature.
(Refer to Figure 7.) The proper adjustment to make on the attitude indicator during level flight is to align the
miniature airplane to the horizon bar.
(Refer to Figure 4.) What is the caution range of the airplane?
165 to 208 knots. (yellow arc)
(Refer to Figure 3.) Which altimeter(s) indicate(s) more than 10,000 feet?
1 and 2 only.
What does the red line on an airspeed indicator represent?
Never-exceed speed.
In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will normally indicate
correctly when on a north or south heading.
How do variations in temperature affect the altimeter?
Pressure levels are raised on warm days and the indicated altitude is lower than true altitude.
After takeoff, which airspeed would the pilot use to gain the most altitude in a given period of time?
V(Y).
If it is necessary to set the altimeter from 29.15 to 29.85, what change occurs?
700-foot increase in indicated altitude.
In the Northern Hemisphere, the magnetic compass will normally indicate a turn toward the south when
the aircraft is decelerated while on a west heading.
Which would provide the greatest gain in altitude in the shortest distance during climb after takeoff?
V(X).
(Refer to Figure 4.) What is the maximum flaps-extended speed?
100 knots.
Deviation error of the magnetic compass is caused by
certain metals and electrical systems within the aircraft.
(Refer to Figure 3.) Altimeter 1 indicates
10,500 feet.
Prior to takeoff, the altimeter should be set to which altitude or altimeter setting?
The current local altimeter setting, if available, or the departure airport elevation.
What is an important airspeed limitation that is not color coded on airspeed indicators?
Maneuvering speed.
What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a south heading in the Northern Hemisphere?
The compass will indicate a turn to the right, but at a faster rate than is actually occurring.
What is density altitude?
The pressure altitude corrected for nonstandard temperature.
The angular difference between true north and magnetic north is
magnetic variation.
During flight, when are the indications of a magnetic compass accurate?
Only in straight-and-level unaccelerated flight.
(Refer to Figure 4.) Which marking identifies the never-exceed speed?
The red radial line.
Which instrument(s) will become inoperative if the static vents become clogged?
Airspeed, altimeter, and vertical speed.
Which condition would cause the altimeter to indicate a lower altitude than true altitude?
Air temperature warmer than standard.
Which V-speed represents maneuvering speed?
V(A).
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.
(Refer to Figure 82.) Altimeter 3 is indicating a VFR cruising altitude for which direction?
080 degrees magnetic.
What is true altitude?
The vertical distance of the aircraft above sea level.
Deviation in a magnetic compass is caused by the
magnetic fields within the aircraft distorting the lines of magnetic force.
At what altitude shall the altimeter be set to 29.92, when climbing to cruising flight level?
18,000 feet MSL.
(Refer to Figure 4.) What is the maximum structural cruising speed?
165 knots.
In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the west if
a right turn is entered from a north heading.
Which instrument will become inoperative if the pitot tube becomes clogged?
Airspeed.
(Refer to Figure 4.) What is the full flap operating range for the airplane?
55 to 100 knots.
In the Northern Hemisphere, a magnetic compass will normally indicate a turn toward the north if
an aircraft is accelerated while on an east or west heading.
(Refer to Figure 4.) Which color identifies the power-off stalling speed in a specified configuration?
Lower limit of the green arc.
(Refer to Figure 5.) A turn coordinator provides an indication of the
movement of the aircraft about the yaw and roll axis.
(Refer to Figure 4.) Which color identifies the power-off stalling speed with wing flaps and landing gear in the landing configuration?
Lower limit of the white arc.
V(SO) is defined as the
stalling speed or minimum steady flight speed in the landing configuration.
(Refer to Figure 6.) To receive accurate indications during flight from a heading indicator, the instrument must be
periodically realigned with the magnetic compass as the gyro precesses.
Under which condition will pressure altitude be equal to true altitude?
When standard atmospheric conditions exist.
(Refer to Figure 4.) Which color identifies the normal flap operating range?
The white arc.
If an altimeter setting is not available before flight, to which altitude should the pilot adjust the altimeter?
The elevation of the departure area.
Under what condition is pressure altitude and density altitude the same value?
At standard temperature.
(Refer to Figure 7.) How should a pilot determine the direction of bank from an attitude indicator such as the one illustrated?
By the relationship of the miniature airplane (C) to the deflected horizon bar (B).
The pitot system provides impact pressure for which instrument?
Airspeed indicator.
(Refer to Figure 3.) Altimeter 3 indicates
9,500 feet.
In the Northern Hemisphere, a magnetic compass will normally indicate initially a turn toward the east if
left turn is entered from a north heading.
Which V-speed represents maximum landing gear extended speed?
V(LE).
If the pitot tube and outside static vents become clogged, which instruments would be affected?
The altimeter, airspeed indicator, and vertical speed indicator.
If a flight is made from an area of high pressure into an area of lower pressure without the altimeter setting being adjusted, the altimeter will indicate
higher than the actual altitude above sea level.
(Refer to Figure 4.) The maximum speed at which the airplane can be operated in smooth air is
208 knots.
What is absolute altitude?
The vertical distance of the aircraft above the surface.
V(NO) is defined as the
maximum structural cruising speed.
What is pressure altitude?
The altitude indicated when the barometric pressure scale is set to 29.92.
If a flight is made from an area of low pressure into an area of high pressure without the altimeter setting being adjusted, the altimeter will indicate
lower than the actual altitude above sea level.
Which V-speed represents maximum flap extended speed?
V(FE).
(Refer to Figure 3.) Altimeter 2 indicates
14,500 feet.
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.
Possible mountain wave turbulence could be anticipated when winds of 40 knots or greater blow
what are the three stages of a thunderstorm?
