Aeolus Flight Academy Inc. Flight Instruments 01 1- The workings of the heading indicator and the attitude indicator are based on … a. gyroscopic precession. b. gyroscopic inertia (rigidity in space). c. perpetual motion. d. mobility in space. 2- The "2 MIN" indication on the turn coordinator means that during a turn, … a. if the wing of the model aircraft is aligned with one of the markers, the aircraft will make a standard turn at a rate of 3° per second. b. if the wing of the model aircraft is aligned with one of the markers, the aircraft will make a standard turn at a rate of 180° per minute. c. if the wing of the model aircraft is aligned with one of the markers, the aircraft will make a standard turn at a rate of 360° per two minutes. d. All of the above. 3- The gyroscopes of the heading indicator and the attitude indicator are mounted respectively ___________ and rotate respectively about the ___________ axis. a. horizontally and vertically vertically and horizontally b. vertically and horizontally horizontally and vertically c. vertically and at an angle 35 ° horizontally and laterally d. vertically and at an angle 45 ° horizontally and laterally 4- In a C-150, which instruments are considered as control instruments ? a. Heading indicator and altimeter. b. Heading indicator and airspeed indicator. c. Attitude indicator and airspeed indicator. d. Attitude indicator and tachometer. 5- A venturi vacuum (suction) system ... a. requires an engine driven vacuum pump. b. requires an electrical driven vacuum pump. c. requires a hydraulic vacuum pump. d. does not require a vacuum pump. 6- In a C-150, which instrument(s) is/are powered by electricity ? a. Heading indicator, attitude indicator and turn coordinator. b. Heading indicator. c. Attitude indicator. d. Turn coordinator. Page 1 of 4 Aeolus Flight Academy Inc. 7- The heading indicator should be adjusted according to the reading of the compass… a. at the beginning of each flight and every 10 or 15 minutes. b. at the beginning of each flight only (when aligned with the runway). c. at the beginning of each flight and before landing. d. None of the above. 8- The turn coordinator reacts to … a. roll only. b. yaw only. c. roll and yaw. d. roll, yaw and pitch. 9- In the event of a C-172 or C-150 vacuum pump malfunction, which instruments would be affected ? a. Altimeter, airspeed indicator, vertical speed indicator. b. Heading indicator and attitude indicator. c. Airspeed indicator only. d. Heading indicator, attitude indicator and turn coordinator. 10- During a flight on the C-150, if we turn the master switch OFF, the turn coordinator will … a. keep on working as usual. b. stop working. c. show a turn to the left. d. show a turn to the right. 11- During a flight on the C-150, if we turn the master switch OFF, the heading indicator will … a. keep on working as usual. b. stop working. c. show a turn to the left. d. show a turn to the right. 12- The turn and slip indicator reacts to … a. roll only. b. yaw only. c. roll and yaw. d. roll, yaw and pitch. 13- What is the indication given by this instrument ? a. Left coordinated turn. b. Right coordinated turn. c. Right slipping turn. d. Right skidding turn. Page 2 of 4 Aeolus Flight Academy Inc. 14- In a climb, can we use the compass to recalibrate the heading indicator ? a. No. The compass is not reliable during a climb. b. No, because the aircraft is not in straight and level flight. c. Yes, as long as there is no acceleration or deceleration. d. Yes. The compass is always stable and reliable. 15- In a turn, can we use the compass to recalibrate the heading indicator ? a. No. The compass is not reliable during a turn. b. No, because the wings of the aircraft are not horizontal. c. Yes, as long as it is a constant turn. d. Yes. The compass is always stable and reliable. 16- Which instrument(s) work(s) according to the gyroscopic precession principle? a. Turn coordinator. b. Heading indicator. c. Attitude indicator. d. All of the above. 17- What is the indication given by this instrument? a. A forward slip with the left wing low. b. A forward slip with the right wing low. c. A right turn during taxiing. d. A left turn during taxiing. 18- In a C-150, which instruments are considered as performance instruments ? a. Airspeed indicator, vertical speed indicator, altimeter, heading indicator. b. Airspeed indicator, vertical speed indicator, altimeter, turn coordinator, heading indicator. c. Airspeed indicator, vertical speed indicator, altimeter, attitude indicator. d. Airspeed indicator, vertical speed indicator, altimeter, turn coordinator, attitude indicator. 19- What is the turn indication given by this instrument ? a. A slip, in flight only. b. A skid, in flight only. c. Slipping in flight or a turn during taxiing. d. Skidding in flight or a turn during taxiing. 20- In straight and level flight, what are the two main instruments to look for during visual scanning? a. The compass and altimeter. b. Heading indicator and vertical speed indicator. c. Heading indicator and altimeter. d. Airspeed indicator and altimeter. Page 3 of 4 Aeolus Flight Academy Inc. 21- The gyroscopic rotor of the turn coordinator is tilted at an angle of approximately … a. 15° b. 25° c. 35° d. 45° 22- The attitude indicator reacts to … a. roll only. b. roll and pitch. c. roll and yaw. d. roll, yaw and pitch. 23- When talking about a satellite navigation system such as GPS, a minimum of ___ satellites is required to calculate a three-dimensional position. a. 3 b. 4 c. 16 d. 24 24- The ball of the turn coordinator reacts to … a. gravity and centrifugal force. b. gyroscopic precession. c. rigidity in space. d. All of the above. 25- What is the indication given by this instrument ? a. Right turn in flight. b. Right turn during taxiing. c. Answer a and b. d. None of the above, impossible to determine. Name: _______________________________________ Date:_____________________ Mark: /25 Page 4 of 4 .