Magnetic Compass / Partial Panel Quiz Flashcards
(30 cards)
During recoveries from unusual attitudes, level flight is attained the instant
the altimeter and airspeed needles stop prior to reversing their direction of movement.
If a half-standard rate turn is maintained, how long would it take to turn 135°?
1 minute and 30 seconds
What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from an easterly heading in the Northern Hemisphere?
The compass will indicate the approximate correct magnetic heading if the roll into the turn is smooth.
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 indicate a turn to the right, but at a faster rate than is actually occurring.
On what headings will the magnetic compass read most accurately during a level 360° turn, with a bank of approximately 15°?
90 and 270
What causes the northerly turning error in a magnetic compass?
The magnetic dip characteristic.
What should be the indication on the magnetic compass when you roll into a standard rate turn to the left from a south heading in the Northern Hemisphere?
The compass will indicate a turn to the left, but at a faster rate than is actually occurring.
What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a westerly heading in the Northern Hemisphere?
The compass will indicate the approximate correct magnetic heading if the roll into the turn is smooth.
What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a northerly heading in the Northern Hemisphere?
The compass will initially indicate a turn to the left.
What should be the indication on the magnetic compass as you roll into a standard rate turn to the left from a west heading in the Northern Hemisphere?
The compass will indicate the approximate correct magnetic heading if the roll into the turn is smooth.
What should be the indication on the magnetic compass as you roll into a standard rate turn to the left from a north heading in the Northern Hemisphere?
The compass will initially indicate a turn to the right.
If a half-standard rate turn is maintained, how long would it take to turn 360°?
4 minutes
While recovering from an unusual flight attitude without the aid of the attitude indicator, approximate level pitch attitude is reached when the
Airspeed and altimeter stop their movement and the VSI reverses its trend.
Which is the correct sequence for recovery from a spiraling, nose-low, increasing airspeed, unusual flight attitude?
Reduce power, correct the bank attitude, and raise the nose to a level attitude.
The gyroscopic heading indicator is inoperative. What is the primary bank instrument in unaccelerated straight-and-level flight?
Magnetic compass.
What is the purpose of the kerosene within the housing of the magnetic compass?
To allow the disc to spin freely. Also, kerosine doesn’t freeze unless in extremely low temps.
What is the purpose of the diaphragm within the housing of the magnetic compass?
It allows the fluid to expand and contract with changes in temp and pressure.
What is located within the magnetic compass that aligns with magnetic north?
Compass Needle
Describe magnetic variation. How does a pilot compensate for it?
the difference between magnetic and true north. + West, - East variation
Describe magnetic deviation. How does a pilot compensate for it?
Interference from other instruments in the aircraft. Fix it by checking the compass deviation card and changing your heading appropriately
How do you preflight the magnetic compass?
check compass card and ensure compass is moving freely and matching heading indicator
What is a agonic line?
Line that connects all points on earth where the magnetic variation is 0
Explain northerly turning error
If turning from a north heading the compass will “lag” in the turn.
On what headings are Acceleration/Deceleration errors most apparent?
Easterly and Westerly
