Instrumentos 2

Aircraft instrument panels are usually shock mounted to absorb____ -frequency, ____ -amplitude shocks. Low-high. Low-low.

The aural signal for a flight control being in an unsafe condition for take-off Is a intermitter horn. Verdadero. Falso.

Jet engine thermocouples are usually constructed of. alumel-constantan. iron-constantan. chromel-alumel.

Aircraft that operate at high altitudes have their pneumatic gyro instruments driven by  ______  system. Pressure. Attitude.

The Pilot is able to maneuver  the aircraft when the autopilot  is engaged by turning knobs or pressing buttons on the  ______. Controller. Gyro.

What component is the sensing device in an electromechanical autopilot system?. Gyro. Controller. Servo.

Instruments can be repaired only by the manufacturer or by a/an  _________approved by the FAA for the particular instrument. Repair station. Mechanice certificated.

When operationally checking an autopilot system on the ground, after the aircraft's main power has been switched on, the autopilot should be engaged. for only a few minutes at a time. whenever the operator desires. only after the gyros come up to speed and the ampli.

What will occur if an aircraft attitude is changed by its autopilot system in order to correct for an error and the involved control surfaces are returned to streamline by the time the aircraft has reached its correct position?. Undershoot and oscillation. Overshoot and oscillation. Normal operation.

The white arc on an airspeed indicator is the  _______range. Flap operating. Normal operating.

What is the operating principle of the sensing device used in an autopilot system?. The rate of change of motion between the gyro gimbal rings and the aircraft. The relative motion between a gyro and its supporting system. The reaction of the force 90__degrees__ away from the applied force in the direction of gyro rotation.

A fully integrated autopilot controls the aircraft around how many axes?. Three. Two. Four.

A white slip mark between the instrument bezel and the glass is required when the instrument range marks are on the--________. glass. steel. plastic.

A certicated mechanic with airframe and powerplant ratings may. perform minor repairs to aircraft instruments. perform minor repairs and minor alterations to aircraft instruments. not perform repairs to aircraft instruments.

The lubber line on a directional gyro is used to. align the instrument glass in the case. represent the nose of the aircraft. represent the wings of the aircraft.

An aircraft instrument panel is electrically bonded to the aircraft structure to. act as a restraint strap. provide current return paths. aid in the panel installation.

In which control element of an autopilot system is an attitude indicator?. Sensing. Input. Command.

What instrument indicates the thrust of a gas turbine engine?. Turbine inlet temperature indicator. Exhaust gas temperature indicator. Engine pressure ratio indicator.

What is the main purpose of a servo in an autopilot system?. Correct for displacement of the aircraft about its axis. Change mechanical energy to electrical energy. Move the control surface as commanded.

The proper range marks for an instrument may be found in the________________for the aircraft or engine. Type Certicate Data Sheets. supplementary Certicate Data.

When an unpressurized aircraft's static pressure system is leak checked to comply with the requirements of Section 91.411, what aircraft instrument may be used in lieu of a pitot-static system tester? 1. Vertical speed indicator. 2. Cabin altimeter. 3. Altimeter. 4. Cabin rate-of-change indicator. 5. Airspeed indicator. 2 or 4. 1 or 5. 3.

Which of the following provides manual maneuverability of the aircraft while the autopilot is engaged?. Flight controller. Directional gyro indicator. Servo-amplifier.

Which condition would be most likely to cause excessive vacuum in a vacuum system?. Vacuum pump overspeed. Vacuum relief valve improperly adjusted. Vacuum relief valve spring weak.

An aviation maintenance technician with an airframe rating is permitted to make a minor repair to an airspeed indicator. verdadero. falso.

When performing the static system leakage check , the technician uses a: positive pressure. negative pressure.

Which channel of an autopilot detects changes in pitch attitude of an aircraft?. Aileron. Elevator. Rudder.

The person responsible for making sure an instrument is properly marked when it is installed in an aircraft is the instrument _______.

Which statement regarding an aircraft instrument vacuum system is true?. Vacuum systems are generally more efective at high altitudes than positive pressure systems. If the air inlet to each vacuum instrument is connected to a common atmospheric pressure manifold, the system generally will be equipped with individual instrument lters only. Dry-type vacuum pumps with carbon vanes are very susceptible to damage from solid airborne particles and must take in only filtered air.

Autopilot servos are driven by signals supplied by the ______-. controller. gyro.

In a turbine engine, where is the turbine discharge pressure indicator sensor located?. Immediately aft of the last turbine stage. At the aft end of the compressor section. At a location in the exhaust cone that is determined to be subjected to the highest pressures.

The component of in an automatic flight control system that actually applies force to move the control surfaces is the _____. servo. gyro.

A certificated technician with airframe and powerplant ratings ______ perform minor repairs to engine instruments. may not. may.

The aural signal for a flight control being in an unsafe condition for takeoff is a continuous horn. verdadero. falso.

An aviation maintenance technician with an airframe rating ____ permitted to perform an instrument system static check on an aircraft. is. is not.

Which of the following instrument discrepancies could be corrected by an aviation mechanic? 1. Red line missing. 2. Case leaking. 3. Glass cracked. 4. Mounting screws loose. 5. Case paint chipped. 6. Leaking at line B nut. 7. Will not adjust. 8. Fogged. 1, 4, 5, 6. 3, 4, 5, 6. 1, 4, 6.

Which procedure should you use if you find a vacuum-operated instrument glass loose?. Mark the case and glass with a slippage mark. Replace the glass. Install another instrument.

In what units are turbine engine tachometers calibrated?. Percent of engine pressure ratio. Percent of engine RPM. Actual engine RPM.

Match the Mode description with the Button letters. This button causes the system to capture the chosen ILS localizer and follow it to the runway. This button engages the rudder trim, which automatically trims the rudder for changes in airspeed. This button to see back-course information. This button ties the system to the horizontal situation indicator. This button commands the aircraft to y to a selected barometric altitude and hold it. This button commands the aircraft to y along the VOR radial or RNA V course.

When installing an instrument in an aircraft, who is responsible for making sure it is properly marked?. The instrument manufacturer. The aircraft owner. The instrument installer.

Instrument panel shock mounts absorb. low frequency, high-amplitude shocks. high energy impact shocks caused by hard landings. high G shock loads imposed by turbulent air.

Cases for electrically operated instruments are made of. Aluminum or composite cases. Bakelite or plastic cases. Iron or steel cases.

Where may a person look for the information necessary to determine the required markings on an engine instrument? 1. Engine manufacturer's specifications. 2. Aircraft flight manual. 3. Instrument manufacturer's specifications. 4. Aircraft maintenance manual. 2 or 3. 2 or 4. 1 or 4.

The yellow arc on an airspeed indicator is the _______ area. structural warning. aileron warning.

The green arc on an aircraft temperature gauge indicates. the desirable temperature range. the instrument is not calibrated. a low, unsafe temperature range.

Which of the following instrument discrepancies require replacement of the instrument? 1. Red line missing from glass. 2. Glass cracked. 3. Case paint chipped. 4. Will not zero out. 5. Pointer loose on shaft. 6. Mounting screw loose. 7. Leaking at line B nut. 8. Fogged. 2, 3, 7, 8. 2, 4, 5, 8. 1, 2, 4, 7.

The type of gyro used by a wing-lever type of autopilot is a/an ________. rate. installer.

Dutch roll, a combination yawing and rolling oscillation that affects many sweptwing aircraft, is counteracted with. an aileron damper system. a yaw damper system. a flight director system.

An aviation maintenance technician with a powerplant rating is not permitted to calibrate an oil temperature gage. verdadero. falso.

A "wet" vacuum pump is lubricated with. engine oil. hydraulic fluid. air bearing.

The takeo warning system alerts the flight crew when a flight control is not properly set prior to takeoff. This system is activated by a switch on the _______. thrust lever. drag lever.

The method of mounting aircraft instruments in their respective panels depends on the. instrument manufacturer. design of the instrument panel. design of the instrument case.

An AMT certificate with an airframe rating _____ authorization to replace a cracked glass in an aircraft instrument. is not. is.

The sub-system in an autopilot that stops the control movement when its deflection is correct for the amount of error is called the _______ system. follow-up. command.

Most autopilot systems sense deviation from straight and level flight with ______. gyros. servos.

Which of the following instruments will normally have range markings?. Cylinder head temperature gauge, airspeed indicator. Altimeter. Altimeter, airspeed indicator.

If a static pressure system check reveals excessive leakage, the leak(s) may be located by isolating portions of the line and testing each portion systematically, starting at the__________end of the system. instrument. controller. gyro.

The aural signal for a fire in an engine compartment is an intermittent horn. verdadero. falso.

What component of an autopilot system applies torque to the control surfaces of an aircraft?. servo. controller. gyro.

How many of the following are controlled by gyroscopes? 1. Attitude indicator. 2. Heading indicator. 3. Turn needle of the turn-and-slip indicator. one. two. three.

Instrument static system leakage can be detected by observing the rate of change in indication of the. altimeter after suction has been applied to the static system to cause a prescribed equivalent altitude to be indicated. altimeter after pressure has been applied to the static system to cause a prescribed equivalent altitude to be indicated. airspeed indicator after suction has been applied to the static system to cause a prescribed equivalent airspeed to be indicated.

(1) Aircraft instruments are color-coded to direct attention to operational ranges and limitations. (2) Aircraft instruments range markings are not specified by Title 14 of the Code of Federal Regulations but are standardized by aircraft manufacturers. only No. 1 is true. only No. 2 is true. both No. 1 and No. 2 are true.

A Bourdon-tube instrument may be used to indicate 1. pressure. 2. temperature. 3. position. 4. quantity. 2 and 4. 1 and 2. 1 and 3.

How is a flangeless instrument case mounted in an instrument panel?. By an expanding-type clamp secured to the back of the panel and tightened by a screw from the front of the instrument panel. By a metal shelf separate from and located behind the instrument panel. By four machine screws which extend through the instrument panel.

Instruments that provide readings of low or negative pressure, such as manifold pressure gauges, are usually what type?. Diaphragm or bellows. Bourdon tube. Vane with calibrated spring.

The red radial lines on the face of an engine oil pressure gauge indicates. minimum precautionary safe operating range. minimum and/ or maximum safe operating limits. minimum engine safe RPM operating range.

The result of the instrument static pressure line becoming disconnected inside a pressurized cabin during high altitude cruising flight will be that the altimeter will read____ and the airspeed indicator will read____. low-low. low-hig.

A certificated mechanic may perform. 100-hour inspections of instruments. minor repairs to instruments. instrument overhaul.

Which of the following instrument discrepancies would require replacement of the instrument? 1. Red line missing. 2. Case leaking. 3. Glass cracked. 4. Mounting screws loose. 5. Case paint chipped. 6. Leaking at line B nut. 7. Will not zero out. 8. Fogged. 1, 3, 5, 8. 2, 3, 7, 8. 1, 4, 6, 7.

When an aircraft altimeter is set at 29.92" Hg on the ground, the altimeter will read. field elevation. pressure altitude. density altitude.

The discharge from a vacuum pump is often used to furnish compressed air for the. vent system. deicer system. cooling system.

A red arc on a tachometer indicates a ________range. restricted operating. flap operating.

An aircraft that has pneumatic attitude gyros normally has rate gyros that are driven by ______. electricity. electromagnet.

Instruments that measure relatively high fluid pressures, such as oil pressure gauges, are usually what type?. Vane with calibrated spring. Bourdon tube. Diaphragm or bellows.

The elevator channel of an autopilot controls the aircraft about which axis of rotation?. Roll. Lateral. Longitudinal.

Match the colored marks with the proper meaning: Special operating condition. Special operations range. Do not exceed indication. Normal operating range. Prohibited range. Caution range.

Thermocouple leads. may be installed with either lead to either post of the indicator. may be repaired using solderless connectors. are designed for a specific installation and may not be altered.

When performing the static system leakage check required by Section 91.411, the technician utilizes. positive pressure. negative pressure. static pressure.

A green arc on an instrument indicates the normal operating range. verdadero. falso.

The aural signal for a fire in an engine compartment is a continuous bell. verdadero. falso.

A red triangle, dot, or diamond mark on an engine instrument face or glass indicates. the maximum limit for high transients such as starting. a restricted operating range. the maximum operating limit for all normal operations.

An airspeed indicator is marked to show the best rate of climb speed with one engine inoperative with a _____radial line. blue. red.

There are two ways instruments can be held in the instrument panel. These are:

The aural signal for the landing gear being in an unsafe condition for landing is a/an. intermittent horn. continuous horn. continuous bell.

What will be the result if the instrument static pressure line becomes disconnected inside a pressurized cabin during cruising ight?. The altimeter and airspeed indicator will both read low. The altimeter and airspeed indicator will both read high. The altimeter will read low and the airspeed indicator will read high.

The maximum altitude loss permitted during an unpressurized aircraft instrument static pressure system integrity check is ___ feet in ___ minute(s). 100-1. 200-1.

What must be done to an instrument panel that is supported by shock mounts?. Bonding straps must be installed across the instrument mounts as a current path. The instrument mounts must be tightened to the specified torque required by the maintenance manual. The instrument mounts must be grounded to the aircraft structure as a current path.

(1) Engine pressure ratio (EPR) is a ratio of the exhaust gas pressure to the engine inlet air pressure, and indicates the thrust produced. (2) Engine pressure ratio (EPR) is a ratio of the exhaust gas pressure to the engine inlet air pressure, and indicates volumetric efficiency. only No. 2 is true. only No. 1 is true. both No. 1 and No. 2 are true.

A "dry" vacuum pump does not need any lubrication because the vanes and rotor are made of ____. carbon. plastic.

Which instrument condition is acceptable and would not require correction? 1. Red line missing. 2. Case leaking. 3. Glass cracked. 4. Mounting screws loose. 5. Case paint chipped. 6. Leaking at line B nut. 7. Will not zero out. 8. Fogged. none. 5. 1.

What marking color is used to indicate if a cover glass has slipped?. Red. White. Yellow.

Which of the following instrument conditions is acceptable and does NOT require immediate correction? 1. Red line missing. 2. Pointer loose on shaft. 3. Glass cracked. 4. Mounting screws loose. 5. Case paint chipped. 6. Leaking at line B nut. 7. Will not zero out. 8. Fogged. 5. 4. 1.

In an autopilot, which signal nullifies the input signal to the ailerons?. Followup signal. Course signal. Displacement signal.

The two types of follow-up system are the ____and the ________ systems. rate-displacement. installer-displacement.

(1) Use solder to attach bonding jumpers on radio equipment. (2) Radio equipment is bonded to the aircraft in order to provide a low-impedance ground and to minimize radio interference from static electrical charges. Regarding the above statements,. only No. 1 is true. only No. 2 is true. both No. 1 and No. 2 are true.

Aircraft instrument panels are generally shock-mounted to absorb. high-frequency, high-amplitude shocks. all vibration. low-frequency, high-amplitude shocks.

The maximum or minimum safe operating limits are indicated on an instrument dial with a __________________. red radial line. blue radial line.

What is the primary purpose of an autopilot?. To obtain the navigational aid necessary for extended overwater flights. To fly a more precise course for the pilot. To relieve the pilot of control of the aircraft during long periods of flight.

The four systems of the automatic control system are: Command, error-sensing, correction and follow-up. Capture, sensing, control and follow-up. Command, capture, sensing and follow-up.

(1) Powerplant instrument range markings show whether the current state of power-plant operation is normal, acceptable for a limited time, or unauthorized. (2) Powerplant instrument range markings are based on installed engine operating limits which may not exceed (but are not necessarily equal to) those limits shown on the engine Type Certificate Data Sheet. Regarding the above statements. both No. 1 and No. 2 are true. only No. 1 is true. neither No. 1 nor No. 2 is true.

Installed radio equipment is protected from damage due to jolts and vibration by. spring and/or viscous damper mounted racks. shock mounts. rubber or foam cushioning material between circuit chassis and case.

Who is authorized to repair an aircraft instrument? 1. A certified mechanic with an airframe rating. 2. A certificated repairman with an airframe rating. 3. A certificated repair station approved for that class instrument. 4. A certificated airframe repair station. 1, 2, 3, and 4. 3 and 4. 3.

Aircraft instrument value should be marked and graduated in accordance with. both the aircraft and engine manufacturers' specifications. the specific aircraft maintenance or flight manual. the instrument manufacturer's specifications.