IR Exam 31-60

[31] While you are flying at FL 250, you hear ATC give an altimeter setting of 28.92" Hg in your area. At what pressure altitude are you flying?

• 24,000 feet.

• 25,000 feet.

• 26,000 feet.

[32] En route at FL 290, the altimeter is set correctly, but not reset to the local altimeter setting of 30.57" Hg during descent. If the field elevation is 650 feet and the altimeter is functioning properly, what is the approximate indication upon landing?

• 715 feet.

• Sea level.

• 1,300 feet.

[33] En route at FL 290, your altimeter is set correctly, but you fail to reset it to the local altimeter setting of 30.26" Hg during descent. If the field elevation is 134 feet and your altimeter is functioning properly, what will it indicate after landing?

• 474 feet MSL.

• 100 feet MSL.

• 206 feet below MSL.

[34] Under what condition will true altitude be lower than indicated altitude with an altimeter setting of 29.92" Hg?

• When density altitude is higher than indicated altitude.

• In colder than standard air temperature.

• In warmer than standard air temperature.

[35] When an altimeter is changed from 30.11" Hg to 29.96" Hg, in which direction will the indicated altitude change and by what value?

• Altimeter will indicate 150 feet higher.

• Altimeter will indicate 15 feet lower.

• Altimeter will indicate 150 feet lower.

[36] Which condition would cause the altimeter to indicate a lower altitude than actually flown (true altitude)?

• Atmospheric pressure lower than standard.

• Air temperature warmer than standard.

• Air temperature lower than standard.

[37] Which practical test should be made on the electric gyro instruments prior to starting an engine?

• Check that the attitude of the miniature aircraft is wings level before turning on electrical power.

• Turn on the electrical power and listen for any unusual or irregular mechanical noise.

• Check that the electrical connections are secure on the back of the instruments.

[38] One characteristic that a properly functioning gyro depends upon for operation is the

• ability to resist precession 90∞ to any applied force.

• resistance to deflection of the spinning wheel or disc.

• deflecting force developed from the angular velocity of the spinning wheel.

[39] What pre-takeoff check should be made of a vacuum-driven heading indicator in preparation for an IFR flight?

• After 5 minutes, check that the heading indicator card aligns itself with the magnetic heading of the aircraft.

• After 5 minutes, set the indicator to the magnetic heading of the aircraft and check for proper alignment after taxi turns.

• Determine that the heading indicator does not precess more than 2∞ in 5 minutes of ground operation.

[40] What pre-takeoff check should be made of the attitude indicator in preparation for an IFR flight?

• The horizon bar does not vibrate during warmup.

• The miniature airplane should erect and become stable within 5 minutes.

• The horizon bar should erect and become stable within 5 minutes.