ASA Instrument Test Prep Ch. 5
If an unpressurized aircraft is operated above 12,500 feet MSL, but not more than 14,000 feet MSL, for a period of 2 hours 20 minutes, how long during that time is the minimum flightcrew required to use supplemental oxygen?
1 hour 50 minutes
What is the maximum cabin pressure altitude at which a pilot can fly for longer than 30 minutes without using supplemental oxygen?
12,500 feet
What is the maximum IFR altitude you may fly in with an unpressurized aircraft without providing passengers with supplemental oxygen?
15,000 feet
What visual illusion creates the same effect as a narrower-than-usual runway?
An upsloping runway
What action should be taken if hyperventilation is suspected?
Consciously breathe at a slower rate than normal.
Abrupt head movement during a prolonged constant rate turn in IMC or simulated instrument conditions can cause
Coriolis illusion
What is the oxygen requirement for an unpressurized aircraft at 15,000 feet?
Crew must use oxygen for the entire time above 14,000 feet and passengers must be provided supplemental oxygen only above 15,000 feet.
What is expected of you as pilot of an IFR flight plan if you are descending or climbing in VFR conditions?
Execute gentle banks, left and right, at a frequency which permits continuous visual scanning of the airspace about you.
What effect does haze have on the ability to see traffic or terrain features during flight?
Haze creates the illusion of being greater distance from the actual runway, and causes the pilots to fly a lower approach.
Due to visual illusion, when landing on a narrower-than-usual runway, the aircraft will appear to be
Higher than actual, leading to a lower than normal approach
How can a pilot best overcome spatial disorientation?
Properly interpret the flight instruments and act accordingly.
How can an instrument pilot best overcome spatial disorientation?
Read and interpret the flight instruments, and act accordingly.
Which use of cockpit lighting is correct for night flight?
Reducing the interior lighting intensity to a minimum level.
Which procedure is recommended to prevent or overcome spatial disorientation?
Rely on indications of the flight instruments.
(Refer to figure 91.) What are the oxygen requirements for an IFR flight eastbound on V520 from DBS VORTAC in an unpressurized cabin at the MEA?
Required crew members must use oxygen at all times and passengers must be provided with supplemental oxygen.
Why is hypoxia particularly dangerous during flights with one pilot?
Symptoms of hypoxia may be difficult to recognize before the pilots reactions are affected.
Which technique should a pilot use to scan for traffic to the right and left during straight and level flight?
Systematically focus on different segments of the sky for short intervals.
(Refer to Figure 89.) What are the oxygen requirements for an IFR flight northeast bound from Milford Municipal on V244 at the lowest appropriate altitude in an unpressurized aircraft?
The required minimum oxygen a crew must be provided and use supplemental oxygen, and all occupants must be provided supplemental oxygen for the entire flight above 15,000 feet.
Which statement is correct regarding the use of cockpit lighting for night flight?
The use of regular white light, such as a flash light will impair night adaptation.
A rapid acceleration during takeoff can create the illusion of
being in a nose up attitude.
A pilot is more subject to spatial disorientation if
body signals are used to interpret flight attitude.
A sloping cloud formation, an obscured horizon, and a dark scene spread with ground lights and stars can create an illusion known as
false horizons.
Tunnel vision and cyanosis are symptoms of
hypoxia
The sensations that often lead to spatial disorientation during instrument flight conditions
must be suppressed and complete reliance placed on indications of the flight instruments.
Without visual aid, a pilot often interprets centrifugal force as a sensation of
rising or falling.
An abrupt change from climb to straight-and-level flight can create the illusion of
tumbling backwards.
