16 Questions
What is the primary function of an Electronic Flight Display (EFD) in an aircraft?
Offer new capabilities and simplify basic flying tasks
What does the V-speed VFE represent?
Maximum flap extended speed
Why does a magnetic compass initially turn towards the east in the Northern Hemisphere?
When an aircraft is accelerated while on a south heading
What airspeed should a pilot use to gain the most altitude in a given period of time?
Vy
What causes deviation in a magnetic compass?
Magnetic fields within the aircraft distorting the lines of magnetic force
How do variations in temperature affect the altimeter?
Pressure levels are raised on warm days and the indicated altitude is lower than true altitude
When are the indications of a magnetic compass accurate?
Only in straight-and-level unaccelerated flight
What is Vso defined as?
Stalling speed or minimum steady flight speed in the landing configuration
What instrument provides impact pressure sometimes called RAM pressure?
Airspeed Indicator
What is the approximate change in indication on the altimeter if the pressure changes from 29.15 to 29.85?
700 FT
If the pitot tube and outside air static vents become clogged, which instruments would be affected?
The altimeter, airspeed indicator, and vertical speed indicator
In the Northern Hemisphere, if an aircraft is accelerated or decelerated, the magnetic compass will normally indicate
A TURN MOMENTARILY
What is a benefit of flying with a glass flight deck?
SITUATIONAL AWARENESS IS INCREASED
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 REMAIN ON SOUTH FOR A SHORT TIME, THEN GRADUALLY CATCH UP TO THE MAGNETIC HEADING OF THE AIRPLANE
The angular difference between true north and magnetic north is
MAGNETIC VARIATION
What would happen to the altimeter if we don't reset it after a pressure change?
The altimeter would show an incorrect reading
Study Notes
Altimeter Changes
- A 0.7 inch change in pressure is equivalent to a 700 FT change in altitude
- If the altimeter setting is changed from 29.15 to 29.85, the indication would increase by 700 FT
- If the altimeter setting is changed from 30.11 to 29.96, the indication would decrease by 150 FT
Pitot System
- Provides impact pressure, also known as RAM pressure
- The airspeed indicator is the instrument that uses this pressure
Instrument Effects
- If the pitot tube and outside air static vents become clogged, the following instruments would be affected:
- Altimeter
- Airspeed indicator
- Vertical speed indicator
Magnetic Compass
- In the Northern Hemisphere, the magnetic compass will normally indicate a turn toward the south when:
- Accelerated or decelerated
- Entering a left turn from an east heading
- Decelerated while on a west heading
- In the Northern Hemisphere, when rolling into a standard rate turn to the right from a south heading, the magnetic compass will initially indicate a turn to the left
- Deviation in a magnetic compass is caused by the difference in location between true north and magnetic north, and magnetic fields within the aircraft distorting the lines of magnetic force
Flight Deck and Instruments
- A benefit of flying with a glass flight deck is that situational awareness is increased
- An aircraft equipped with an Electronic Flight Display (EFD) can offer new capabilities and simplify basic flying tasks
- VFE represents maximum flap extended speed
- VY is the airspeed at which the pilot can gain the most altitude in a given period of time
Aircraft Performance
- Vso is defined as the stalling speed or minimum steady flight speed in a specified configuration
Temperature Effects
- Variations in temperature affect the altimeter, with higher temperatures expanding pressure levels and the indicated altitude being higher than true altitude, and lower temperatures lowering pressure levels and the indicated altitude being lower than true altitude
Quiz about aviation instruments, altimeter settings and their effects on flight readings. Covers calculations and identification of instruments.
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