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A&P Powerplant

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Título del test:
A&P Powerplant

Descripción:
Inspection, Instrument System and Fire protection.

Autor:
AVATAR

Fecha de Creación:
03/12/2019

Categoría:
Otros
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Temario:
Which of the following contains a table that lists the engine to which a given propeller is adaptable? Aircraft bType Certificate Data sheets. Propeller Type Certificate Data Sheets. Engine Type Certificate Data Sheets.
Which of the following component inspections is to be accomplished on a 100- hours inspection? Check internal of magneto. Check cylinder compression. Check valve timing.
What maintenance record(s) is/are required following a major repair of an aircraft engine? Entries in engine maintenance records and a list of discrepancies for the FAA. Entries in the engine maintenance record and FAA Form 337. Entry in logbook.
When must an Airworthiness Directive (AD) be complied with after it becomes effective? As specified in the AD. During the next scheduled inspection. At the next scheduled overhaul. .
What publication is used for guidance to determine whether a powerplant repair is major or minor? Airworthiness Directives. 14 CFR part 43. Aircraft owner´s manual.
(1) airworthiness Directives are federal Aviation Regulation and must be complied with unless specific exemption is granted. (2) Airworthiness Directives of an emergency nature may require immediate compliance upon receipt. Regarding the above statements. only No. 1 is true. Only No. 2 is true. both No. 1 and No.2 are true.
The airworthiness standards for the issue of type certificates for small airplane with nine or less passenger seats in the normal, utility, and acrobatic categories may be found in the Federal Aviation Regulations, Part 23. Supplemental Type Certificate. Federal Aviation Regulations, Part 21.
Which of the following conditions is usually not acceptable to any extent in turbine blades? Cracks. Pits. Dent.
How is the flow range of the fuel discharge nozzles installed in a fuel injected reciprocating engine indicated? By a letter stamped on the hex of the nozzle body. By a number stamped on the hex of the nozzle body. By the code located on the engine.
The breaking loose of small pieces of metal from coated surfaces, usually caused by defective planing or excessive woads, is called flaking. chafing. brinelling.
What publication contains the mandatory replacement time for parts of a turbine engine? Engine Manufacturers service instructions. Federal Aviation Regulation Part 43. Engine Manufacturer´s maintenance manual.
Which of the following is used to monitor the mechanical integrity of the turbines, as well as to check engine operating condition of a turbine engine? Engine oil pressure. Exhaust gas temperature. Engine pressure ratio.
Determine which portion of the AD is applicable for Model 0-690 series engine, serial No. 5863-40 with 283 hours time in service. This is the compliance portion of an FAA Airworthiness Directive. Compliance required as indicative. (A) For model 0-690 series engine, serial Nos. 101-40 through 5264-40 and IO-690 series engine, serial Nos. 101-48 through 423-48. compliance with (C) required within 25 hours time in service after the effective date of this AD and every 100 hours time in service thereafter. (B) For model 0-690 series engine, serial Nos. 5265-40 through 6129-40 and IO-690 series engine, serial Nos. 424-48 through through 551-48. compliance with (C) required as follows: (1) Within 25 hours time in service after the effective date of this AD and every 100 hours time in service thereafter for engines with more than 275 hours, time in service on the effective date of this AD. (2) Prior to the accumulation of 300 hours total time in service and every 100 hours time in service thereafter for engines with 275 hours or less time in service on the effective date of this AD. (C) Inspect the oil pump drive shaft (P/N 67512) on applicable engines in accordance with instruction contained in Connin Service Bulletin No. 295. Any shaft which are found to be danger shall be replace before further flight. These inspection shall be continued until Connin P/N 67512 (redesigned) or P/N 74641 oil pump drive shaft is installed at which time the inspections may be discontinued. (B), (1) (A). (B), (2).
What section in the instruction for continued airworthiness is FAA approved? Engine maintenance manual or section. Engine overhaul manual or section. Airworthiness limitations section.
You are performing a 100-hours inspection on an R985-22 aircraft engine. What does the ´985´ indicate? The total piston displacement of the engine. The pistons will pump a maximum of 985 cubic inches of air per crankshaft revolution. The total piston displacement of one cylinder.
Where would one find type design information for an R!(·=-92 engine certificated under the Civil Air Regulation (CAR) and installed on a DC-3? The aircraft Specifications and Type Certificate Data Sheet. The Aircraft Engine Specifications. The Aircraft Engine Type Certificate Handbook.
Which of the following contains approved data for performing a major repair to an aircraft engine? Engine Type Certificate Data Sheet. Supplementary Type Certificates. Manufacturer´s maintenance instruction when FAA approved.
Each powerplant installed on an airplane with a Standard Airworthiness Certificate must have been type certificate manufactured under the TSO system. originally certificated for that aircraft.
Which of the following contains a minimum checklist for 100-hours inspection of engines? 14 CFR Part 33 Appendix A. 14 CFR Part 43 Appendix D. Engine Specifications or Type Certifications or Type Certificate data Sheet.
Which of the following can inspect and approve an engine major repair for return to service? Certificated mechanic with airframe and powerplant ratings. Certificated mechanic with a powerplant rating. Certificated mechanic with inspection authorization.
Straightening nitrided crankshaft is recommended. not recommended. approved by the manufacturer.
A ground incident that results in propeller sudden stoppage would require a crankshaft runout inspection. What publication would be used to obtain crankshaft runout tolerance? Current manufacturer´s maintenance instructions. Type Certificate Data Sheet. AC 43. 13-1A, acceptable Methods Techniques and Practices - Aircraft Inspection and Repair.
Indentations on bearing races caused by high static loads are know as fretting. brinelling. galling.
When inspecting an aircraft reciprocating engine what document is used to determine if the proper magnetos are installed? Instruction for continued airworthiness issued by the engine manufacturer. Engine Manufacturer´s Maintenance Manual. Aircraft Engine Specifications or Type Certificate data Sheet.
A severe condition of chafing or fretting in which a transfer of metal from one part to another occurs in called scoring. burning. galling.
A Cessna 180 aircraft has a McCauley propeller Model No. 2A34C50/90A. The propeller is severely damage in a ground accident, and in a ground accident, and this model propeller is not available for replacement. Which of the following should be used to find an approved alternate replacement? Summary of Suplemental Type Certificates. Aircraft Specifications/Type Certificate Data Sheets. Aircraft Engine and Propeller Specification/Type Certificate data Sheets.
On a reciprocating engine aircraft using a shrouded exhaust muffler system as a source for cabin heat, the exhaust system should be visually inspected for any indication od cracks or an operational carbon monoxide detection test should be done. replaced at each reciprocating engine overhaul by a new or overhauled exhaust system or an hydrostatic test should be accomplished. removed and the exhaust muffler checked for crack by using magnetic particle inspection method or an hydrostatic test should be done on the exhaust muffler.
(1) Serviceability limits for turbine blades are much more stringent than are those for turbine nozzle vanes. (2) A limited number of small nicks and dents can usually be permitted in any area of a turbine blades. Regarding the above statement. both No. 1 and No. 2 are true. neither No. 1 nor No. 2 is true. only No. 1 is true.
Select the airworthiness Directive applicability statement which applies to an IVO-355 engine, serial number T8164, with 2,100 hours total time and 300 hours since rebuilding. Applies to all IVO-355 engines, serial number T8000 though T8300, having less than 2.400 hours total time. Applies to all IVO-355 engines, serial number T8000 though T8900, with 2.400 hours or more total time. Applies to all I.O. and TV10-355 engines, all serial numbers regardless of total time or since overhaul.
Which unit most accurately indicates fuel consumption of a reciprocating engine? Fuel flowmeter. Fuel pressure gauge. Electronic fuel quantitynindicator.
An indication of unregulated power changes that result in continual drift of manifold pressure indication on a turbosuper charged aircraft engine is know as Overshoot. Waste gate fluctuation. Bootstrapping.
(1) Engine pressure ratio (EPR) is ratio of the exhaust gas pressure to the engine inlet air pressure, and indicates the thrust produce. (2) Engine pressure ratio (EPR) is ratio of the exhaust gas pressure, to the engine inlet air pressure and indicates volumetric efficiency. Regarding the above statement, only No. 1 is true. only No. 2 is true. both No.1 and No. 2 are true.
Which of the following typer of electric motors are commonly used in electric thacometers? Direct current, series-wind motors, Synchronous motors. Direct current, Shunt-wound motors.
The thermocouple leads used to measure cylinder temperature on an aircraft reciprocating engine. should be cut snd trimmed to life if the lead is too long. are connected to the electrical wiring on the end and cylinder on the other end. connected to the cider can only be bayonet type.
Instruments that provide readings of low or negative pressure, such as manifold pressure gauges, are usually what type? Vane with calibrate spring. Bourdon tube. Diaphragm or bellows.
The indication on a thermocouple-type cylinder head temperature indicator is produce by resistance changes in two dissimilar metals. a difference in the voltage between two dissimilar metals. a current generated by the temperature difference between dissimilar metal hot and cold junctions.
The engine pressure ratio (EPR) indicator is a direct indication of engine thrust being produced. pressure ratio between the from and aft end of the compresor. ratio of engine RPM to compressor pressure.
The propose of an exhaust gas analyzer is to indicate the brake specific fuel consumption. fuel/air being burned in the cylinders. temperatura of the exhaust gases in the exhaust manifold.
If the thermocouple leads were inadvertently crossed at installation, what would the cylinder temperature gauge pointer indicate? Normal temperature for prevailing condition. Moves off-scale on zero side of the meter. Moves off-scale on the zero of the high of meter.
The EGT gauge used with reciprocating engines is primarily used to furnish temperature reading in order to obtain the best mixture setting for fuel. efficiency. obtain the best mixture setting for engine cooling. prevent engine over-temperature.
A manifold pressure gauge is designed to maintain constant pressure in the intake manifold. indicate differential pressure between the intake manifold and atmospheric pressure. indicate absolute pressure in the intake manifold.
What instrument indicates the thrust of a gas turbine engine? Exhaust gas temperature indicator. Turbine inlet temperature indicator. Engine pressure ratio indicator.
Instruments that measure relatively high fluid pressure, such as oil pressure gauges, are usually what type? Vane with calibrated spring. Bourdon tube. Diaphragm or bellows.
Turbine engine EGT thermocouple are constructed of iron and constantan. copper and constatan. chrome and alumel.
What is the primary purpose of the tachometer on an axial-compressor turbine engine? Monitor engine RMP during cruise conditions. it is the most accurate instrument for establishing thrust setting under all conditions. Monitor engine RPM during starting and to indicate overspeed condition.
Engine oil temperature gauges indicate the temperature of the oil entering the cooler. entering the engine. in the storage tank.
Motor driven impeller and turbine fuel flow transmitters are designed to transmit data using aircraft electrical system power. mechanically. by fuel pressure.
A common type of electrically operated oil temperature gauge utilizes either a Wheatstone bridge or radiometer circuit. a thermocouple type circuit. vapor pressure and pressure swittches.
Which statement is correct concerting a thermocouple-type temperature indicating instrument system? it is a balanced- type, variable resistor circuit. it requires no external power source. it usually contains a balancing circuit in the instrument case to prevent fluctuations of the system voltage from affecting the temperature reading.
In addiction to fuel quantity, a computerized fuel system (CFS) with a totalizer-indicator provides indication of how many of the following? 1. Fuel flow rate. 2. Fuel used since reset or initial start-up. 3. Fuel time remaining at current power setting. 4. Fuel temperature. Two. Three. Four.
A charge in engine manifold pressure has a direct effect on the piston displacement. compression ratio. mean effective cylinder pressure.
The exhaust gas temperature (EGT) indicator on a gas turbine engine provides a relative indication of th Exhaust temperature. temperature of the exhaust gases as they pass the exhaust cone. turbine inlet temperature.
What basic meter is used to indicate cylinder head temperature in most aircraft? Electrodynamometer. Galvanometer. Thermocouple-type meter-.
Which statement is true regarding a thermocouple-type cylinder head temperature measuring system? The resistance required for cylinder head temperature indicator is measured in farads. The voltage output of a thermocouple system is determined by the temperature difference between the two ends of the thermocouple. When the master switch is turned on, a thermocouple indicator will move off-scale to the low side.
(1) Generally, when a turbine engine indicates high EGT for a particular EPR (when there is no significant damage) it menas that the engine is out of trim. (2) Some turbine-powered aircraft use RPM as the primary indicator of thrust produce, other use EPR as the primary indicator. Regarding the above statement, only No.1 is true. only No. 2 is true. both No. 1 and No. 2 are true.
Engine pressure ratio is the total pressure ratio between the aft end the compressor and the aft end of the turbine. from of the compressor and the rear of the turbine. from of the engine inlet and the aft and of the compressor.
In regard to using a turbine engine oil analysis program, which of the following is NOT true? Generally, an accurate trend forecast may be made after an engine´s first oil sample analysis. It is best to start an oil analysis program on an engine when it is new: A successful oil analysis program should be run over an engine´s total operating life so that normal trends can be established.
The fuel-flow indicator rotor and needle for a motor-impeller and turbine indicating system is driven by an electrical signal. direct coupling to the motor shaft. a mechanical gear train.
Basically, the indicator of a tachometer system is responsive to change in current flow. frequency. voltaje.
The fuel-flow indication data sent from motor driven impeller and turbine, and motoless type fuel flow transmitters is a measure of fuel mass-flow. fuel volume-flow. engine burner pressure drop.
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 looser 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.
In an aircraft equipped with a pressure-drop type fuel-flow indicating system, if one of the injector nozzles becomes restricted, this would cause a decrease in fuel flow with a decreased fuel flow indication on the gauge. an increased fuel flow indication on the gauge. no change in fuel flow indication on the gauge.
A complete break in the line between the manifold pressure gauge and the induction system will be indicated by the gauge registering prevailing atmospheric pressure. zero. lower than normal for conditions prevailing.
Where are the hot and cold suctions located in an engine cylinder temperature indicating system? Both junction are located at the instrument. Both junction are located at the cylinder. The hot junction is located at the cider and the cold junction is located at the instrument.
A red triangle, dot , or diamond mark on an engine instrument face or glass indicates the maximum operating limit for all normal operations. the maximum limit for high transients such as starting. a restricted operating range.
In what units are turbine engine tachometers calibrated? Percent of engine RPM. Actual engine RPM. Percent of engine pressure ratio.
Which of the following is a primary engine instrument? Tachometer. Fuel flowmeter. Airspeed indicator.
The fuel-flow indication system used with many fuel-injected opposed engine airplanes utilizes a measure of fuel flow volume. fuel pressure. fuel flow mass.
On a twin- engine aircraft with fuel-injected reciprocating engine, one fuel-flow indicator reads considerably higher than the other in all engine operating configurations. What is the probable cause of this indication? Carburetor icing. One or more fuel nozzles are clogged. Alternate air door stroke open.
(1) Powerplant instrument range marking 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 statement, both No. 1 and No. 2 are true. neither No. 1 nor No. 2 is true. only No. 1 is true.
What would be the possible cause if a gas turbine engine has high exhaust gas temperature, high fuel flow, and low RPM at all engine power setting? Fuel control out adjustment. loose or corroded thermocouple probes for the EGT indicator. Turbine damage or loss of turbine efficiency.
The RPM indication of a sun-chronous ac motor-tachometer is governed by the generator voltage. current. frequency.
Engine pressure ratio is determined by multiplying engine inlet total pressure by turbine outlet total pressure. dividing turbine outlet total pressure by engine inlet total pressure. dividing engine inlet total pressure by turbine outlet total pressure.
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.
On an aircraft turbine engine, operating at a constant power, the application of engine anti-icing will result in noticeable shift in EPR a false EPR reading. an increase in EPR.
What unit in a tachometer system sends information to the indicator? The three-phase ac generator. The two-phase ac generator. The synchronous motor.
The fuel flowmeter used with a continuos-fuel injection system installed on an aircraft horizontally opposed reciprocating engine measures the fuel pressure drop across the manifold valve. fuel nozzles. metering valve.
What instrument on a gas turbine engine should be monitored to minimize the possibility of a ´hot´ start? RPM indicator. Turbine inlet temperature. Torquemeter.
Why do helicopter require a minimum of two synchronous tachometer systems? One indicates engine RPM and the other tail rotor RPM. One indicates main rotor RPM and the other tail rotor RPM. One indicates engine RPM and the other main rotor RPM.
Which of the following instrument conditions is acceptable and does not require immediate correction? Case paint chipped. Instrument glass fogged. Mounting screws loose.
In a turbine engine, where is the turbine discharge pressure indicator sensor located? At aft and of the compressor section. At a location in the exhaust cone that is determined to be subjected to the highest pressure. Immediately aft of the last turbine state.
Thermocouple leads may be installed with either lead to either post of the indicator. are designed for a specific installation and may not be altered. may be repaired using solder less connectors.
The principle fault in the pressure type fuel flowmeter indicating system, installed on a horizontally opposed continuous-flow fuel injected aircraft reciprocating engine, is that a plugged fuel injection nozzle will cause a normal operation indication. lower than normal fuel flow indication. higher than normal fuel flow indication.
Two continuous-loop fire detection system that will not test due to a broken detector element are the Kidde system and the Lindberg system. Kidde system and the Fenwal system thermocouple system and the Lindberg system.
A fuel or oil fire is defined as a class B fire. class A fire. class C fire.
A fire detection system operates on the principle of a buildup of gas pressure within a tube proportional to temperature. Which of the following systems does this statement define? Kidde continuous-loop system. Lindberg continuous-element system. Thermal switch system.
Which of the following is NOT used to detect fires in reciprocating engine nacelles? Smoke detectors. rate-temperature-rise detector. Flame detector.
After a fire is extinguished , or overheat condition removed in aircraft equipped with a Systron-Donner fire detector, the detection system. must manually reset. automatically resets. sensing component must be replaced.
Which statement best describes the blowout type indicator disk on a fixed fire extinguishing system? When the red indication disk is missing, it indicates the fire extinguishing system is charged and ready for use. When the yellow indication disk is missing, it indicates the fire extinguishing system has been normally discharged. When the green indication disk is missing, it indicates the fire extinguishing system may have been normally discharged.
Which of the following fire detection systems are commonly used in an engine nacelles? Fire detection control unit. Thermocouple detector. Kidde continuous-loop.
How is the fire-extinguishing agent distributed in the engine section? Spray nozzles and fluid pumps. Nitrogen pressure and slinger ring. Spray nozzles and perforated tubing.
The explosive cartridge in the discharge valve of a fire-extinguisher container is a life-dated unit. not a life-dated unit. mechanically fired. .
What is the operating principle of the spot detector sensor in a fire detection system? Resistant core material that prevents current flow at normal temperatures. A conventional thermocouple that produces a current flow. A bimetallic thermoswitch that closes when heated to a high temperature.
Why does one type of fennel fire detection system use spot detectors wired in parallel between tow separate circuits? To provide an installation that is equal to two separate system: a primary system and a secondary, or back-up system. So that a double fault may exist in the system without sounding a false alarm. So that a single fault may exist in the system without sounding a false alarm.
A fire involving energized electrical equipment is defined as a class B fire. class D fire. class C fire.
The fire detection system that uses two wires imbedded in a ceramic core within a tube is the Fenwal system. Lindberg system. Kidde system.
A continuous-loop fire detector is what type of detector? Spot detector. Overheat detector. rate-of-temperature-rise detector.
A fire detection system that operates on the rate-of-temperature rise is a continuous.loop system. thermocouple system thermal switch system.
(refer to figure 2.) Determine the fire-extinguisher container pressure limits when the temperature is 75ºF. 326 minimum and 415 maximum. 330 minimum and 419 maximum. 338 minimum and 424 maximum.
The pulling out (or down) of an illuminated fire handle in a typical large jet aircraft fire protection system commonly accomplishes what events? Closes all firewall shutoff valves, disconnects then generator, and discharges a fire bottle. Closes fuel shutoff, closes hydraulic shutoff, disconnects the generator field, and arms the fire-extinguishing system. Closes fuel shutoff, closes hydraulic shutoff, closes the oxygen shutoff, disconnects the generator fiel, and arms the fire-extinguishing system.
how are most aircraft turbine engine fire-extinguishing system activated? Electrically discharged cartridges. manual remote control valve. Pushrod assembly.
For fire detection and extinguishing purposes, aircraft powerplant areas are divided into fire zones based on hot and cold section of the engine. the volume and smoothness of the airflow through engine compartment. engine type and size.
Which of the following fire detection systems measures temperature rise compared to a reference temperature? Thermocouple. Thermal switch. Lindberg continuous element.
The use of water on closes D fires is most effective if sprayed in a fine mist. will cause the fire to burn more violently and can cause explosions. has no effect.
What retains the nitrogen charge and fire-extinguishing agent in a high rate of discharge (HRD) container? Breakable disk and fusible disk. Pressure switch and check tee valve. Pressure gauge and cartridge.
Which of the following is the safest fire-extinguishing agent to use from a standpoint of toxicity and corrosion hazards? Dibromodifluoromethane (Halon 1202) Bromochlorodifluoromethane (halon 1211) Bromotrifluoromethane (halon 1301).
Which of the following fire detection system uses heat in the normal testing of the system? The thermocouple system and the Lindberg system. The Kidde system and the Fenwal system. The thermocouple system and the fenwal system.
What is the principle of operation of the continuos-loop fire detector system sensor? Fuse material which melts at high temperatures. Core resistance material which prevents current flow at normal temperature. A bimetallic thermoswitch which close when heated to a high temperature.
The most satisfactory extinguishing agent for a tailpipe or intake fire is carbon dioxide. dry chemical. methyl bromide.
The most satisfactory extinguishing agent for an electrical fire is carbon tetrachloride. carbon dioxide. methyl bromide.
Which of the following fire detection system will detect a fire when an element is inoperative but will not test when the test circuit is energized? The Kidde system and the thermocouple system. The Kidde system and the Fenwal system. The thermocouple system and the Lindberg system.
The fire detection system that uses a single wire surrounded by a continuos string of ceramic beads in a tube is the Fenwal system. Kidde system. Thermocouple system.
What is the function of a fire detection system? To discharge the powerplant fire-extinguishing system at the origin of the fire. To activate a warning device in the event of a powerplant fire. To identify the location of a powerplant fire.
How dose carbon dioxide (CO(")) extinguish and aircraft engine fire? Contact with the air converts the liquid into snow and gas which smothers the flame. By lowering the temperature to a point where combustion will not take place. The high pressure spray lowers the temperature and blows out the fire.
(Refer to figure 3.) What are the fire-extinguisher container pressure limits when the temperature is 50ºF? 425-575 PSIG. 435-605 PSIG. 475-625 PSIG.
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