Answer A is Incorrect, Try Again


Answer B is Incorrect, Try Again


Answer C is Incorrect, Try Again


Answer A is correct. Part 1 Definitions and Abbreviations, Section 1.2
VA means design maneuvering speed.

Answer A is correct. Part 91 General Operating and Flight Rules, Section 91.125
Steady green - on the surface = Cleared for takeoff; in flight = Cleared to land.

Answer B is correct. Part 91 General Operating and Flight Rules, Section 91.121(a)(1)
Each person operating an aircraft shall maintain the cruising altitude ... by reference to an altimeter that is set, when operating-- Below 18,000 feet MSL, to-- The current reported altimeter setting of a station along the route and within 100 nautical miles of the aircraft; ... or the current reported altimeter setting of an appropriate available station; or ... the elevation of the departure airport or an appropriate altimeter setting available before departure.

Answer B is correct. FAA-H-8083-13 Glider Flying Handbook, Page 4-14
During a slipping turn, the tail of the yaw string will be offset toward the outside of a turn. The ball moves to the inside of the turn to indicate a slip, or to the outside to indicate a skid.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
There are other important airspeed limitations not marked on the face of the airspeed indicator... One example is the MANEUVERING SPEED.

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
MAXIMUM STRUCTURAL CRUISING SPEED (the upper limit of the green arc). This is the maximum speed for normal operation.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
FLAP OPERATING RANGE (the white arc).

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
MAXIMUM FLAPS EXTENDED SPEED (the upper limit of the white arc). This is the highest airspeed at which the pilot should extend full flaps.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
NEVER-EXCEED SPEED (the red line). This is the maximum speed at which the airplane can be operated in smooth air. This speed should never be exceeded intentionally.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-1
As the airplane moves through the air, the impact pressure on the open pitot tube affects the pressure in the pitot chamber. Any change of pressure in the pitot chamber is transmitted through a line connected to the airspeed indicator which utilizes impact pressure for its operation.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
NEVER-EXCEED SPEED (the red line). This is the maximum speed at which the airplane can be operated in smooth air. This speed should never be exceeded intentionally.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-4
True Altitude - The true vertical distance of the aircraft above sea level - the actual altitude.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-2
The shortest hand indicates altitude in tens of thousands of feet; the intermediate hand in thousands of feet; and the longest hand in hundreds of feet, subdivided into 20-foot increments.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-4
The numerical values of pressure indicated in the window increase while the altimeter indicates an increase in altitude; or a decrease while the altimeter indicates a decrease in altitude.

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-2
This indicated altitude is correct, however, only if sea level barometric pressure is standard (29.92 in. Hg.), the sea level free air temperature is standard (+15oC or 59oF).

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-4
Pressure Altitude - The altitude indicated when the altimeter setting window (barometric scale) is adjusted to 29.92.

Answer A is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-4
True Altitude - The true vertical distance of the aircraft above sea level - the actual altitude.

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-4
Absolute Altitude - The vertical distance of an aircraft above the terrain.

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-1
There are two major parts of the pitot-static system: (1) impact pressure chamber and lines; and (2) static pressure chamber and lines, which provides the source of ambient air pressure for the operation of the altimeter, vertical speed indicator, and the airspeed indicator.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-10
An adjustment knob is provided with which the pilot may move the miniature airplane up or down to align the miniature airplane with the horizon bar to suit the pilot's line of vision.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-10
The relationship of the miniature airplane to the horizon bar should be used for an indication of the direction of bank.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-9
Bear in mind that the heading indicator is not direction-seeking, as is the magnetic compass. It is important to check the indications frequently and reset the heading indicator to align it with the magnetic compass when required.

Answer A is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-8
The turn coordinator shows the yaw and roll of the aircraft around the vertical and longitudinal axes.

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-12
When on an east or west heading, no error is apparent while entering a turn to north or south; however, an increase in airspeed or acceleration will cause the compass to indicate a turn toward north; a decrease in airspeed or acceleration will cause the compass to indicate a turn toward south. If on a north or south heading, no error will be apparent because of acceleration or deceleration.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-11
Deviation Magnetic disturbances from magnetic fields produced by metals and electrical accessories in an aircraft disturb the compass needles and produce an additional error.

Answer A is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-12
The magnetic compass should be read only when the aircraft is flying straight and level at a constant speed. This will help reduce errors to a minimum.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-12
When on an east or west heading, no error is apparent while entering a turn to north or south; however, an increase in airspeed or acceleration will cause the compass to indicate a turn toward north; a decrease in airspeed or acceleration will cause the compass to indicate a turn toward south. If on a north or south heading, no error will be apparent because of acceleration or deceleration.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-2
On a warm day, a given mass of air expands to a larger volume than on a cold day, raising the pressure levels. For example, the pressure level where the altimeter indicates 5,000 feet is HIGHER on a warm day.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-4
Do not be confused by the fact that as the barometric pressure scale is moved, the indicator needles move in the same direction. (1" Hg = 1,000 feet)

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-16
In the Northern Hemisphere, when making a turn from a northerly heading, the compass gives an initial indication of a turn in the opposite direction.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-18
The course or radials projected from the station are referenced to magnetic north. Therefore, a radial is defined as a line of magnetic bearing extending outward from the VOR station... To aid in orientation, a compass rose reference to magnetic north is superimposed on aeronautical charts at the station location.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-23
Magnetic Bearing - "TO" the station is the angle formed by a line drawn from the aircraft to the station and a line drawn from the aircraft to magnetic north. The magnetic bearing to the station can be determined by adding the relative bearing to the magnetic heading of the aircraft.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-24
To determine the magnetic bearing "FROM" the station, 180o is added to or subtracted from the magnetic bearing to the station.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-24
To determine the magnetic bearing "FROM" the station, 180o is added to or subtracted from the magnetic bearing to the station.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-23
Magnetic Bearing - "TO" the station is the angle formed by a line drawn from the aircraft to the station and a line drawn from the aircraft to magnetic north. The magnetic bearing to the station can be determined by adding the relative bearing to the magnetic heading of the aircraft.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-23
Magnetic Bearing - "TO" the station is the angle formed by a line drawn from the aircraft to the station and a line drawn from the aircraft to magnetic north. The magnetic bearing to the station can be determined by adding the relative bearing to the magnetic heading of the aircraft.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-23
Relative Bearing - is the angle measured clockwise from the nose of the aircraft to a line drawn from the aircraft to the station.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-19
If the course selector is rotated until the deviation needle is centered, the radial (magnetic course "FROM" the station) or its reciprocal (magnetic course "TO" the station) can be determined. The course deviation needle will also move to the right or left if the aircraft is flown or drifting away from the radial which is set in the course selector.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-20
If the aircraft passes to one side of the station, the needle will deflect in the direction of the station as the indicator changes to "FROM."

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-19
If the course selector is rotated until the deviation needle is centered, the radial (magnetic course "FROM" the station) or its reciprocal (magnetic course "TO" the station) can be determined. The course deviation needle will also move to the right or left if the aircraft is flown or drifting away from the radial which is set in the course selector.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-20
If the aircraft passes to one side of the station, the needle will deflect in the direction of the station as the indicator changes to "FROM."

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-18
The course or radials projected from the station are referenced to magnetic north. Therefore, a radial is defined as a line of magnetic bearing extending outward from the VOR station... To aid in orientation, a compass rose reference to magnetic north is superimposed on aeronautical charts at the station location.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-18
The course or radials projected from the station are referenced to magnetic north. Therefore, a radial is defined as a line of magnetic bearing extending outward from the VOR station... To aid in orientation, a compass rose reference to magnetic north is superimposed on aeronautical charts at the station location.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-19
If the course selector is rotated until the deviation needle is centered, the radial (magnetic course "FROM" the station) or its reciprocal (magnetic course "TO" the station) can be determined. The course deviation needle will also move to the right or left if the aircraft is flown or drifting away from the radial which is set in the course selector.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-18
The course or radials projected from the station are referenced to magnetic north. Therefore, a radial is defined as a line of magnetic bearing extending outward from the VOR station... To aid in orientation, a compass rose reference to magnetic north is superimposed on aeronautical charts at the station location.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-18
The course or radials projected from the station are referenced to magnetic north. Therefore, a radial is defined as a line of magnetic bearing extending outward from the VOR station... To aid in orientation, a compass rose reference to magnetic north is superimposed on aeronautical charts at the station location.

Answer B is correct. AC 00-6 Aviation Weather, Page 19
Pressure altitude is the altitude in the standard atmosphere where pressure is the same as where you are.

Answer C is correct. AC 00-6 Aviation Weather, Figure 15
When flying from high pressure to lower pressure without adjusting your altimeter, you are losing true altitude.

Answer A is correct. AC 00-6 Aviation Weather, Figure 14
When air is colder than average, the altimeter reads higher than true altitude. When air is warmer than standard, the altimeter reads lower than true altitude.

Answer A is correct. AIM Aeronautical Information Manual, Table 4-1-1
No Tower, FSS, or UNICOMSelf-announce on MULTICOM frequency 122.910 miles out. Entering downwind, base, and final. Leaving the runway.

Answer A is correct. AIM Aeronautical Information Manual, Table 4-1-1
No Tower, FSS, or UNICOMSelf-announce on MULTICOM frequency 122.910 miles out. Entering downwind, base, and final. Leaving the runway.

Answer A is correct. AIM Aeronautical Information Manual, Paragraph 4-2-13(a)(3)
Transmitter and receiver inoperative: Remain outside or above Class D surface area until the direction and flow of traffic has been determined; then join the airport traffic pattern and maintain visual contact with the tower to receive light signals.

Answer A is correct. AIM Aeronautical Information Manual, Paragraph 4-2-9(a)
Up to but not including 18,000 feet MSL, state the separate digits of the thousands plus the hundreds if appropriate. Example: 12,500 - one two thousand five hundred.

Answer C is correct. AIM Aeronautical Information Manual, Paragraph 4-2-9(a)
Up to but not including 18,000 feet MSL, state the separate digits of the thousands plus the hundreds if appropriate. Example: 12,500 - one two thousand five hundred.

Answer A is correct. AIM Aeronautical Information Manual, Paragraph 4-2-6
Pilots, when calling a ground station, should begin with the name of the facility being called followed by the type of facility. (e.g. FAA Flight Service Station - "Chicago Radio")

Answer A is correct. AIM Aeronautical Information Manual, Paragraph 4-3-20(d)
Immediately change to ground control frequency when advised by the tower and obtain a taxi clearance.

Answer A is correct. AIM Aeronautical Information Manual, Paragraph 8-1-2(a)(1)
Hypoxia is a state of oxygen deficiency in the body sufficient to impair functions of the brain and other organs. Hypoxia from exposure to altitude is due only to the reduced barometric pressures encountered at altitude, for the concentration of oxygen in the atmosphere remains about 21 percent from the ground out to space.

Answer B is correct. Part 1 Definitions and Abbreviations, Section 1.2
VNE means never-exceed speed.

Answer B is correct. Part 1 Definitions and Abbreviations, Section 1.2
VNO means maximum structural cruising speed.

Answer A is correct. Part 1 Definitions and Abbreviations, Section 1.2
VF means design flap speed.

Answer B is correct. Part 1 Definitions and Abbreviations, Section 1.2
VS1 means the stalling speed or the minimum steady flight speed obtained in a specific configuration.

Answer C is correct. Part 91 General Operating and Flight Rules, Section 91.121(a)(2)
Each person operating an aircraft shall maintain the cruising altitude ... by reference to an altimeter that is set, when operating-- At or above 18,000 feet MSL, to 29.92'' Hg.

Answer C is correct. Part 91 General Operating and Flight Rules, Section 91.211(a)
No person may operate a civil aircraft of U.S. registry-- At cabin pressure altitudes above 12,500 feet (MSL) up to and including 14,000 feet (MSL) unless the ... flight crew ... uses supplemental oxygen for that part of the flight ... that is of more than 30 minutes duration; At cabin pressure altitudes above 14,000 feet (MSL) unless the ... flight crew ... uses supplemental oxygen during the entire flight ... ; and At cabin pressure altitudes above 15,000 feet (MSL) unless each occupant of the aircraft is provided with supplemental oxygen.

Answer C is correct. Part 91 General Operating and Flight Rules, Section 91.211(a)
No person may operate a civil aircraft of U.S. registry-- At cabin pressure altitudes above 12,500 feet (MSL) up to and including 14,000 feet (MSL) unless the ... flight crew ... uses supplemental oxygen for that part of the flight ... that is of more than 30 minutes duration; At cabin pressure altitudes above 14,000 feet (MSL) unless the ... flight crew ... uses supplemental oxygen during the entire flight ... ; and At cabin pressure altitudes above 15,000 feet (MSL) unless each occupant of the aircraft is provided with supplemental oxygen.

Answer C is correct. Soaring Flight Manual, Page 3-10
An advantage of the electric variometer is that its sensitivity can be adjusted in flight to suit existing air conditions.

Answer A is correct. FAA-H-8083-13 Glider Flying Handbook, Page 4-8
A variometer with a total energy system senses changes in airspeed and tends to cancel out the resulting climb and dive indications (stick thermals).

Answer C is correct. FAA-H-8083-13 Glider Flying Handbook, Page 4-8
A variometer with a total energy system senses changes in airspeed and tends to cancel out the resulting climb and dive indications (stick thermals).

Answer B is correct. FAA-H-8083-13 Glider Flying Handbook, Page 4-13
When on an east or west heading, no error is apparent while entering a turn to north or south. However, an increase in airspeed or acceleration will cause the compass to indicate a turn toward north; a decrease will cause the compass to indicate a turn toward south.

Answer C is correct. Soaring Flight Manual, Page 10-4
Although it (bailout bottle) is designed for use during a parachute descent from high altitude, it also serves as an emergency oxygen supply, should the main system malfunction or become prematurely exhausted.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-7
Some important airspeed limitations are not marked on the face of the airspeed indicator. Design maneuvering speed (VA)-This is the "rough air" speed and maximum speed for abrupt maneuvers. If during flight, rough air or severe turbulence is encountered, reduce the airspeed to maneuvering speed or less to minimize stress on the airplane structure.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-7
Upper limit of green arc (VNO)-The maximum structural cruising speed. Do not exceed this speed except in smooth air.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-7
White arc - This arc is commonly referred to as the flap operating range since its lower limit represents the full flap stall speed and its upper limit provides the maximum flap speed.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-7
Some important airspeed limitations are not marked on the face of the airspeed indicator. Design maneuvering speed (VA)-This is the "rough air" speed and maximum speed for abrupt maneuvers. If during flight, rough air or severe turbulence is encountered, reduce the airspeed to maneuvering speed or less to minimize stress on the airplane structure.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-4
Pressure Altitude - The altitude indicated when the altimeter setting window (barometric scale) is adjusted to 29.92.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-16
In the Northern Hemisphere, the compass swings towards the north during acceleration, and towards the south during deceleration.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-23
Magnetic Bearing - "TO" the station is the angle formed by a line drawn from the aircraft to the station and a line drawn from the aircraft to magnetic north. The magnetic bearing to the station can be determined by adding the relative bearing to the magnetic heading of the aircraft.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-21
When navigating to a station, determine the inbound radial and use this radial. ...If this is not done, the action of the course deviation needle will be reversed.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-21
When navigating to a station, determine the inbound radial and use this radial. ...If this is not done, the action of the course deviation needle will be reversed.

Answer C is correct. AIM Aeronautical Information Manual, Paragraph 1-1-4(b)
To use the VOT service, tune in the VOT frequency on your VOR receiver. With the Course Deviation Indicator (CDI) centered, the omni-bearing selector should read 0 degrees with the to/from indication showing "from" or the omni-bearing selector should read 180 degrees with the to/from indication showing "to."

Answer B is correct. AIM Aeronautical Information Manual, Paragraph 8-1-2(a)(1)
Hypoxia is a state of oxygen deficiency in the body sufficient to impair functions of the brain and other organs. Hypoxia from exposure to altitude is due only to the reduced barometric pressures encountered at altitude, for the concentration of oxygen in the atmosphere remains about 21 percent from the ground out to space.

Answer B is correct. Part 91 General Operating and Flight Rules, Section 91.125
Steady red - on the surface = Stop; in flight = Give way to other aircraft and continue circling.

Answer B is correct. Part 91 General Operating and Flight Rules, Section 91.211(a)
No person may operate a civil aircraft of U.S. registry-- At cabin pressure altitudes above 12,500 feet (MSL) up to and including 14,000 feet (MSL) unless the ... flight crew ... uses supplemental oxygen for that part of the flight ... that is of more than 30 minutes duration; At cabin pressure altitudes above 14,000 feet (MSL) unless the ... flight crew ... uses supplemental oxygen during the entire flight ... ; and At cabin pressure altitudes above 15,000 feet (MSL) unless each occupant of the aircraft is provided with supplemental oxygen.

Answer B is correct. FAA-H-8083-13 Glider Flying Handbook, Page 4-8
A variometer with a total energy system senses changes in airspeed and tends to cancel out the resulting climb and dive indications (stick thermals).

Answer B is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-6
MAXIMUM STRUCTURAL CRUISING SPEED (the upper limit of the green arc). This is the maximum speed for normal operation.

Answer C is correct. AC 61-23 Pilotís Handbook of Aeronautical Knowledge, Page 3-12
When on an east or west heading, no error is apparent while entering a turn to north or south; however, an increase in airspeed or acceleration will cause the compass to indicate a turn toward north; a decrease in airspeed or acceleration will cause the compass to indicate a turn toward south. If on a north or south heading, no error will be apparent because of acceleration or deceleration.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-6
Calibrated Airspeed (CAS) - Indicated airspeed corrected for installation error and instrument error. This error is generally greatest at low airspeeds. Refer to the airspeed calibration chart to correct for possible airspeed errors.

Answer B is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 6-15
The angular difference between magnetic north, the reference for the magnetic compass, and true north is variation.

Answer A is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-19
If the course selector is rotated until the deviation needle is centered, the radial (magnetic course "FROM" the station) or its reciprocal (magnetic course "TO" the station) can be determined. The course deviation needle will also move to the right or left if the aircraft is flown or drifting away from the radial which is set in the course selector.

Answer C is correct. FAA-H-8083-25 Pilotís Handbook of Aeronautical Knowledge, Page 14-19
If the course selector is rotated until the deviation needle is centered, the radial (magnetic course "FROM" the station) or its reciprocal (magnetic course "TO" the station) can be determined. The course deviation needle will also move to the right or left if the aircraft is flown or drifting away from the radial which is set in the course selector.

Answer B is correct. AIM Aeronautical Information Manual, Paragraph 1-1-4(b)
To use the VOT service, tune in the VOT frequency on your VOR receiver. With the Course Deviation Indicator (CDI) centered, the omni-bearing selector should read 0 degrees with the to/from indication showing "from" or the omni-bearing selector should read 180 degrees with the to/from indication showing "to."

Answer A is correct. AIM Aeronautical Information Manual, Paragraph 1-1-3(c)
The only positive method of identifying a VOR is by its Morse Code identification or by the recorded automatic voice identification...During periods of maintenance, the facility may radiate a T-E-S-T code or the code may be removed.

Answer C is correct. AIM Aeronautical Information Manual, Table 4-1-1
No Tower, FSS, or UNICOMSelf-announce on MULTICOM frequency 122.910 miles out. Entering downwind, base, and final. Leaving the runway.

Answer C is correct. AIM Aeronautical Information Manual, Paragraph 8-1-2(a)(1)
Hypoxia is a state of oxygen deficiency in the body sufficient to impair functions of the brain and other organs. Hypoxia from exposure to altitude is due only to the reduced barometric pressures encountered at altitude, for the concentration of oxygen in the atmosphere remains about 21 percent from the ground out to space.

Answer B is correct. AIM Aeronautical Information Manual, Paragraph 8-1-2(a)(1)
Hypoxia is a state of oxygen deficiency in the body sufficient to impair functions of the brain and other organs. Hypoxia from exposure to altitude is due only to the reduced barometric pressures encountered at altitude, for the concentration of oxygen in the atmosphere remains about 21 percent from the ground out to space.

Answer C is correct. FAA-H-8083-3, Airplane Flying Handbook, Page 13-5
Industrial oxygen is not intended for breathing and may contain impurities, and medical oxygen contains water vapor that can freeze in the regulator when exposed to cold temperatures.


© 2005 Jim D. Burch 602-942-2734 jdburch@att.net