Airman Certification Standards
(ACS) Questions and Answers
100% Correct
When an instrument rating is required? - ANSWER - -61.75 (e): No person may act
as pilot in command of a civil aircraft under IFR or in weather conditions less than
the minimums prescribed for VFR flight unless.
-IFH: or in any flight in Class A airspace.
Recent instrument flight experience requirements? - ANSWER - 61.57
Within 6 calendar months
(i) Six instrument approaches.
(ii) Holding procedures and tasks.
(iii) Intercepting and tracking courses through the use of navigational electronic
systems.
When flights conducted under actual or simulated IMC can be logged for instrument
currency? - ANSWER - 61.51
(g) Logging instrument time. (1) A person may log instrument time only for that
flight time when the person operates the aircraft solely by reference to instruments
under actual or simulated instrument flight conditions.
(2) An authorized instructor may log instrument time when conducting instrument
flight instruction in actual instrument flight conditions.
What are the pilot logbook/record-keeping requirements? - ANSWER - 61.51
(3) For the purposes of logging instrument time to meet the recent instrument
experience requirements of §61.57(c) of this part, the following information must be
recorded in the person's logbook—
(i) The location and type of each instrument approach accomplished; and
(ii) The name of the safety pilot, if required.
, What physiological factors that might affect the pilot's ability to fly under
instrument conditions? - ANSWER - 1. The Leans- can result when a banked
attitude,may be entered too slowly to set in motion the fluid in the "roll"
semicircular tubes.
2. Coriolis illusion - occurs when a pilot has been in a turn
long enough for the fluid in the ear canal to move at the same speed as the canal
3. Graveyard Spiral - pilot in a prolonged coordinated,
constant-rate turn, will have the illusion of not turning.
4. Somatogravic Illusion - A rapid acceleration, such as experienced during takeoff,
stimulates the otolith organs in the same way as tilting the
head backwards.
5. Inversion Illusion
6. Elevator Illusion
Distinguishing proficiency versus currency - ANSWER - 1. Proficiency - once you
have the rating, means less reliance on chance and more on skill and knowledge
2. Currency - enable a person to act as pilot in command
Discuss the setting of personal minimums - ANSWER - If weather minimums are
below a pilot's personal minimums, a delay in departure to wait for improved
conditions is a good decision. This time can be used to complete the navigation log,
which is the next step in planning an IFR flight.
Discuss weather system formation, including air masses and fronts - ANSWER - 1.
The boundary layer between two types of air masses
2. Air mass - large bodies of air that take on the characteristics of the surrounding
area or source region
•Warm
• Cold
• Stationary
• Occluded
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