IRA Written Exam Questions and Answers
(Aerodynamics & Aircraft)
You are planning an IFR flight and need to verify the VOR equipment operational check was
accomplished within the preceding: - Answer-30 days
What is the maximum allowable tolerance between the two indicators of a dual VOR system when
making a VOR check? - Answer-4 degrees between the two indicated bearings of the VORs when tuned
to the same ground VOR facility
If while in level flight, it becomes necessary to use an alternate source of static pressure vented inside
the airplane, which of the following variations in instrument indications should the pilot expect? -
Answer-The altimeter will read higher than normal, airspeed greater than normal, and the VSI will
momentarily show a climb.
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 - Answer-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? - Answer-The compass will indicate a turn to the
right, but at a faster rate than is actually occurring.
, 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? - Answer-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? - Answer-The compass will indicate the
approximate correct heading if the roll into the turn is smooth.
As you roll into a standard rate turn from a northerly heading in the Northern Hemisphere, the magnetic
compass will: - Answer-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? - Answer-the compass will indicate the approximate
correct magnetic heading if the roll into the turn is smooth.
What should be the indication o n the magnetic compass as you roll into a standard-rate turn to the left
from a north heading in the Northern Hemisphere? - Answer-the compass will initially indicate a turn to
the right.
What is the relationship between centrifugal force and the horizontal lift component in a coordinated
turn? - Answer-Horizontal lift and centrifugal force are equal.
What force causes an airplane to turn? - Answer-horizontal component of lift.
Which instrument indicates the quality of a turn? - Answer-ball of the turn coordinator.
During a constant bank level turn, what effect would an increase in airspeed have on the rate and radius
of turn? - Answer-rate of turn would decrease, and radius of turn would increase
(Aerodynamics & Aircraft)
You are planning an IFR flight and need to verify the VOR equipment operational check was
accomplished within the preceding: - Answer-30 days
What is the maximum allowable tolerance between the two indicators of a dual VOR system when
making a VOR check? - Answer-4 degrees between the two indicated bearings of the VORs when tuned
to the same ground VOR facility
If while in level flight, it becomes necessary to use an alternate source of static pressure vented inside
the airplane, which of the following variations in instrument indications should the pilot expect? -
Answer-The altimeter will read higher than normal, airspeed greater than normal, and the VSI will
momentarily show a climb.
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 - Answer-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? - Answer-The compass will indicate a turn to the
right, but at a faster rate than is actually occurring.
, 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? - Answer-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? - Answer-The compass will indicate the
approximate correct heading if the roll into the turn is smooth.
As you roll into a standard rate turn from a northerly heading in the Northern Hemisphere, the magnetic
compass will: - Answer-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? - Answer-the compass will indicate the approximate
correct magnetic heading if the roll into the turn is smooth.
What should be the indication o n the magnetic compass as you roll into a standard-rate turn to the left
from a north heading in the Northern Hemisphere? - Answer-the compass will initially indicate a turn to
the right.
What is the relationship between centrifugal force and the horizontal lift component in a coordinated
turn? - Answer-Horizontal lift and centrifugal force are equal.
What force causes an airplane to turn? - Answer-horizontal component of lift.
Which instrument indicates the quality of a turn? - Answer-ball of the turn coordinator.
During a constant bank level turn, what effect would an increase in airspeed have on the rate and radius
of turn? - Answer-rate of turn would decrease, and radius of turn would increase
