INSTRUMENTOS 2DO 30%

(1) Powerplant instrument range markings show whether the current state of powerplant 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,. 1y2 are true. neither 1y2 are true. only 1 is true.

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

(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. Regarding the above statements,. Only 1 is true. Only 2 is true. 1 and 2 are true.

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

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.

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

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.

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

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

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

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

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.

A red triangle, dot, or diamond mark on an engine instrument face or glass indicates. the maximunm operation limit for all bnormal operations. the maximun limit for hight trasients such as starting. a restrigted operating range.

the four subsystems of an automatic fligh control system are: A. COMMAND B. ERROR SENSING C. CORRECTION D. FOLLOW UP. A. COMMAND B. ERROR SENSING C. CORRECTION D. FOLLOW DOWN.

The pilot is able to manouver the aircraft when the auto pilot is engaged by turning knobs or pressing buttons on the__________. controller. console.

most autopilot system sense deviation from straight and level flight with:____________. gyros. lasers.

the type-giro used by a wing level type of autopilot is a/an__________ gyro. rate. attitude.

The componet in an automatic flight control system that actually applies force to move the control suface is the ______. servo. actuator.

auto pilots servos are driven by signals supplied by the ______. controller. computer.

the subsystem in an autopilot that stops the control movement when its deflection is correct for the amount of error is called the ________ system. follow up. follow down.

the two type of follow up systems system are the ____ and _____ systems. rate-dispacement. displacement- radio.

The takeoff warning system alerts the fli ght crew when a flight control is not properl y set prior to takeoff. This system is activated by a switch on the________________________ . thrust lever. condition lever.

The aural signal for a fire in an engine compartment is a/an ____________ . bell. continuous bell.

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

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

An aviation maintenance technician with an airframe rating _______ permitted to make a minor repair to an airspeed indicator. Page. is. is not.

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

An aviation maintenance technician with an ai1frame rating _____ permitted to perform an instrument system static check on an aircraft. is not. is.

Instruments can be repaired only by the manufacturer or by a/an ___________ approved by the FAA for the particular instrument. repair station. OMA.

The proper range marks for an instrument may be found in the _______________ for the aircraft or engine. Type Certificate Data Sheets. Airwhortines certificate.

The white arc on an airspeed indicator is the ___________ range. flap operating. never exceded.

The yellow arc on an airspeed indicator is the ____________ area. structural warning. normal operating.

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

A red arc on a tachometer indicates a ______________ range. restricted operating. normal operating.

A green arc on an instrument indicates the ____________ range. normal operating. abnormal operating.

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

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

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

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

There are two ways instruments can be held in the instrument panel. These are: a. screws b. clamps. a. screws b. pins.

Aircraft instrument panels are usually shock mounted to absorb ___________ (low or high)-frequency, ____________ (low or high) -amplitude shocks. low- high. hight- hight.

A certificated technician with airframe and powerplant ratings _______________ perform min or repairs to engine instruments. may. may not.

The result of the instrument static pressure line becoming disconnected inside a pressurized cabin during hi gh altitude cruising flight will be th at the altimeter will read (high or low ) ______________________ and the airspeed indicator will read (high or low). __________. low-low. hight hight.

When an unpressurized aircraft's static pressure system is leak-checked to comply with the requirementsof 14 CPR 91.411 , the ___________________may be used in lie u of a pi tot-stati c system tester. altimeter. tachometer.

The maximum altitude loss permitted during an unpressurized aircraft instrument static pressure system integrity check is ______feet in ______minute(s). 100-1. 200-15.

.The minimum requirements for testing and in spection of instrument static pressure systems required by 14 CPR 91.411 are contained in_________ 14 CPR Part ________Appendix. 43,E. 43,F.

When performing the static system leakage check required by 14 CPR 91.411, the technician uses a _______________ pressure. positive. negative.

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. static port.

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.

The requirements for testing and inspection of instrument static systems required by Section 91.411 are contained in. type certificate data sheets. AC 43.13-1A. Parte 43 apendice E.

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

What must be done to an instrument panel that is supported by shock mounts?. bonding straps mut be installed across the intrument mounts as a current path. the instrument mounts must be grounded to the aitcraft structure as current path. the instrument mounts must be tightened to the specific torque required by the mantenaince manual.

What marking color is used to indicate if a cover glass has slipped?. red. white. yellow.

Aircraft instrument value should be marked and graduated in accordance with. The instrument manofacturers specifications. both the aircraft and engine manofacturers specifications. the specific aircraft maintenance or flight manual.

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

How is a flangeless instrument case mounted in an instrument panel?. by four machine screws wich extend throught the instrument panel. by an expanding-type clamp secured to the back of the panel and tightenedby a screw from the front of the instrument panel. by metal shelf separated from and located behind the instrument panel.

Cases for electrically operated instruments are made of. aluminium or composite cases. iron or steel cases. bakelite or plastic cases.

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

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 4. 1 or 4. 2 or 3.

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

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

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

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

what is the primary purpose of an autopilot?. to relieve the pilot control of the aircraft during long period of flight. to flight a more precise course of the pilot. to obtain the navigational aid necesary for extended overwater flights.

wich of the following provides manual maneuverability of the aircraft while the auto pilot is engaged?. flight controller. directional gyro indicator. servo-amplifier.

In an autopilot, which signal nullifies the input signal to the ailerons?. displacement signal. course signal. follow up signal.

In which control element of an autopilot system is an attitude indicator?. command. sensing. input.

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

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?. normal operation. undershoot and oscilation.

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

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

Which channel of an autopilot detects changes in pitch attitude of an aircraft?. elevator. aileron. rudder.

The elevator channel of an autopilot controls the aircraft about which axis of rotation?. roll. longitudinal. lateral.

What component is the sensing device in an electromechanical autopilot system?. gyro. controller. servo.

A fully integrated autopilot controls the aircraft around how many axes?. two. three. four.

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

When operationally checking an autopilot system on the ground, after the aircraft's main power has been switched on, the autopilot should be engaged. only after the gyros come up to speed and the amplifier warms up. when ever operators desires.

Installed radio equipment is protected from damage due to jolts and vibration by. shock mounts. springs and/or viscous damper mounted racks.

(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 1 is true. both 1 and 2 are true. only 2 is true.