PPL Checkride Flashcards
(91 cards)
What are the daytime VFR equipment requirements?
Reference FAR 91.205:
A - airspeed indicator
T - tachometer
O - oil pressure gauge
M - manifold pressure gauge
A - altimeter
T - temperature gauge (liquid cooled engine only)
O - oil temperature gauge
F - fuel gauge
L - landing gear position indicator
A - anti-collision lights
M - magnetic compass
E - ELT
S - safety belts
What are the nighttime VFR equipment requirements?
Reference FAR 91.205:
A - airspeed indicator
T - tachometer
O - oil pressure gauge
M - manifold pressure gauge
A - altimeter
T - temperature gauge (liquid cooled engine only)
O - oil temperature gauge
F - fuel gauge
L - landing gear position indicator
A - anti-collision lights (registered after 1996)
M - magnetic compass
E - ELT
S - safety belts
F - fuses (complete set, if a/c not equipped with circuit breakers)
L - landing light (if flying commercially)
A - anti-collision lights (registered after 1971)
P - position lights
S - source of electricity (alternator)
What is indicated altitude?
The altitude read directly from the altimeter.
What is true altitude?
The altitude above MSL.
What is absolute altitude?
The altitude AGL.
What is pressure altitude?
The altitude compensated for non-standard atmospheric pressure. Can be read off of altimeter by setting the barometric pressure scale to 29.92 inHg.
What is density altitude?
The pressure altitude corrected for non-standard temperature.
What are the VFR cruising altitudes?
Ref: 91.159
When 3000’ AGL to 18000’ MSL:
- odd thousands + 500’ on magnetic courses of 0-179
- even thousands + 500’ on magnetic courses of 180 - 359
Which instruments run off of the vacuum system?
Attitude indicator and heading indicator.
What is rigidity in space?
The spinning rotor of a gyroscope maintains a constant attitude in space.
What is precession?
The deflection of a spinning rotor when a force is applied to the rim.
How does the vacuum system work?
A vacuum pump draws air through a filter, and then through the cases of the attitude indicator and directional gyros. Small vanes on the gyroscope rotors cause the gyros to spin up as the air flows through. The air also passes through a suction gauge that indicates the pressure of the system before being vented overboard.
Which instruments are part of the static system?
(1) airspeed indicator
(2) altimeter
(3) vertical speed indicator
How does the airspeed indicator work?
The airspeed indicator uses the difference between dynamic pressure and static pressure to determine the airspeed. Static pressure is introduced to the ASI case, while dynamic pressure is introduced to the diaphragm. The diaphragm expands/contracts with the pressure difference, moving the needle on the face.
How does the altimeter work?
A stack of aneroid wafers are sealed with an internal pressure of 29.92 inHg. Static pressure is introduced to the case, allowing the wafers to expand and contract. Mechanical linkages connect the wafers to the needles on the face.
How does the Vertical Speed Indicator work?
The static line is connected to a diaphragm inside the VSI. The area outside the diaphragm is connected to the static line through a restricted orifice (calibrated leak). The pressure differential across the diaphragm causes the needle to move through a mechanical linkage.
A climb or descent immediately changes the pressure inside the diaphragm, while the pressure in the case changes slower due to the calibrated leak.
What flight instrument(s) are powered by the electrical system?
The turn coordinator gyros.
What are the three axes of an airplane?
The longitudinal axis (roll), lateral axis (pitch), and vertical axis (yaw).
What are the VFR weather minimums in Class A airspace?
VFR flight is prohibited in Class A.
What are the VFR weather minimums in Class B airspace?
3 statue miles viz
Clear of clouds
What are the VFR weather minimums in Class C airspace?
3 statute miles viz
1000’ above clouds
500’ below clouds
2000’ horizontally from clouds
What are the VFR weather minimums in Class D airspace?
3 statute miles viz
1000’ above clouds
500’ below clouds
2000’ horizontally from clouds
What are the VFR weather minimums in Class E airspace?
(1) 10,000’ - 18,000’ MSL:
5 statue miles viz
1000’ above clouds
1000’ below clouds
1 statue mile horizontally from clouds
(2) Below 10,000’
3 statute miles viz
1000’ above clouds
500’ below clouds
2000’ horizontally from clouds
What are the VFR weather minimums in Class G airspace?
(1) Below 1200’ AGL (Day): 1 statute mile, clear of clouds
(2) Below 1200’ AGL (Night): 3-152
(3) Between 1200’ AGL and 10,000’ MSL (Day): 1-152
(4) Between 1200’ AGL and 10,000’ MSL (Night): 3-152
(5) Above 1200’ AGL and 10,000’ MSL: 5-111