IRA Written Exam Questions and
Answers
If the outside air temperature increases during a flight at constant power and at a constant indicated
altitude, the true airspeed will:
A. decrease and true altitude will increase
B. increase and true altitude will decrease
C. increase and true altitude will increase - Answer-increase and true altitude will increase
You check the flight instruments while taxiing and find that the vertical speed indicator (VSI) indicates a
descent of 100 feet per minute. In this case, you
A. may not proceed under IFR until the instrument is corrected by an authorized instrument repairman
B. may take off under IFR and use 100 feet descent as the zero indication
C. may take off and proceed under IFR but only in VFR weather conditions - Answer-may take off under
IFR and use 100 feet descent as the zero indication (VSI not req. for IFR; 91.205)
The local altimeter setting should be used by all pilots in a particular area, primarily to provide for
,A. the cancellation of altimeter error due to nonstandard temperatures aloft
B. better vertical separation of aircraft
C. more accurate terrain clearance in mountainous areas - Answer-better vertical separation of aircraft
While you are flying at FL250, you hear ATC give an altimeter setting of 28.92" Hg in your area. At what
pressure altitude are you flying?
A. 24,000 feet
B. 25,000 feet
C. 26,000 feet - Answer-25,000 feet
Under what conditions will pressure altitude be equal to true altitude?
A. When the atmospheric pressure is 29.92" Hg
B. When standard atmospheric conditions exist
C. When indicated altitude is equal to the pressure altitude - Answer-When standard atmospheric
conditions exist
How does a pilot normally obtain the current altimeter setting during an IFR flight in Class E airspace
below 18,000 feet?
A. The pilot should contact ARTCC at least every 100 NM and request the altimeter setting
B. FSSs along the route broadcast the weather information at 15 minutes past the hour
C. ATC periodically advises the pilot of the proper altimeter setting - Answer-ATC periodically advises
the pilot of the proper altimeter setting
, Under what condition will true altitude be lower than indicated altitude with an altimeter setting of
29.92" Hg?
A. In warmer than standard air temperature
B. In colder than standard air temperature
C. When density altitude is higher than indicated altitude - Answer-In colder than standard air
temperature
Which condition would cause the altimeter to indicate a lower altitude than actually flown (true
altitude)?
A. Air temperature lower than standard
B. Atmospheric pressure lower than standard
C. Air temperature warmer than standard - Answer-Air temperature warmer than standard
One characteristic that a properly functioning gyro depends upon for operation is the
A. ability to resist precession 90 degrees to any applied force
B. resistance to deflection of the spinning wheel or disc
C. deflecting force developed from the angular velocity of the spinning wheel - Answer-B
Which condition during taxi is an indication that an attitude indicator is unreliable?
A. The horizon bar tilts more than 5 degrees while making taxi turns
B. The horizon bar vibrates during warmup
C. The horizon bar does not align itself with the miniature airplane after warmup - Answer-A
Answers
If the outside air temperature increases during a flight at constant power and at a constant indicated
altitude, the true airspeed will:
A. decrease and true altitude will increase
B. increase and true altitude will decrease
C. increase and true altitude will increase - Answer-increase and true altitude will increase
You check the flight instruments while taxiing and find that the vertical speed indicator (VSI) indicates a
descent of 100 feet per minute. In this case, you
A. may not proceed under IFR until the instrument is corrected by an authorized instrument repairman
B. may take off under IFR and use 100 feet descent as the zero indication
C. may take off and proceed under IFR but only in VFR weather conditions - Answer-may take off under
IFR and use 100 feet descent as the zero indication (VSI not req. for IFR; 91.205)
The local altimeter setting should be used by all pilots in a particular area, primarily to provide for
,A. the cancellation of altimeter error due to nonstandard temperatures aloft
B. better vertical separation of aircraft
C. more accurate terrain clearance in mountainous areas - Answer-better vertical separation of aircraft
While you are flying at FL250, you hear ATC give an altimeter setting of 28.92" Hg in your area. At what
pressure altitude are you flying?
A. 24,000 feet
B. 25,000 feet
C. 26,000 feet - Answer-25,000 feet
Under what conditions will pressure altitude be equal to true altitude?
A. When the atmospheric pressure is 29.92" Hg
B. When standard atmospheric conditions exist
C. When indicated altitude is equal to the pressure altitude - Answer-When standard atmospheric
conditions exist
How does a pilot normally obtain the current altimeter setting during an IFR flight in Class E airspace
below 18,000 feet?
A. The pilot should contact ARTCC at least every 100 NM and request the altimeter setting
B. FSSs along the route broadcast the weather information at 15 minutes past the hour
C. ATC periodically advises the pilot of the proper altimeter setting - Answer-ATC periodically advises
the pilot of the proper altimeter setting
, Under what condition will true altitude be lower than indicated altitude with an altimeter setting of
29.92" Hg?
A. In warmer than standard air temperature
B. In colder than standard air temperature
C. When density altitude is higher than indicated altitude - Answer-In colder than standard air
temperature
Which condition would cause the altimeter to indicate a lower altitude than actually flown (true
altitude)?
A. Air temperature lower than standard
B. Atmospheric pressure lower than standard
C. Air temperature warmer than standard - Answer-Air temperature warmer than standard
One characteristic that a properly functioning gyro depends upon for operation is the
A. ability to resist precession 90 degrees to any applied force
B. resistance to deflection of the spinning wheel or disc
C. deflecting force developed from the angular velocity of the spinning wheel - Answer-B
Which condition during taxi is an indication that an attitude indicator is unreliable?
A. The horizon bar tilts more than 5 degrees while making taxi turns
B. The horizon bar vibrates during warmup
C. The horizon bar does not align itself with the miniature airplane after warmup - Answer-A
