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Plant (AMP) Exam Questions And Answers
What is likely to occur if a reciprocating engine is operated at high power settings before it is properly warmed up? - correct answer ✅Oil starvation of bearings and other parts. If the ignition switch is moved from BOTH to either LEFT or RIGHT during an engine ground check, normal operation is usually indicated by a - correct answer ✅Slight drop in RPM The five events of a four stroke cycle engine in the order of their occurrence are - correct answer ✅Intake, compression, ignition, power, exhaust During the inspection of an engine control system in which push pull control rods are used, the threaded rod ends should - correct answer ✅Be checked for the amount of thread engagement by means of the inspection holes Master rod bearings are generally what type? - correct answer ✅Plain
Plant (AMP) Exam Questions And Answers
What is the purpose of the safety circlet installed on some valve stems? - correct answer ✅To prevent valves from falling into the combustion chamber Some cylinder barrels are hardened by - correct answer ✅Nitriding The purpose of two or more valve springs in aircraft engines is to - correct answer ✅Eliminate valve spring surge The volume of a cylinder equals 70 cubic inches when the piston is at bottom center. When the piston is at the top of the cylinder, the volume equals 10 cubic inches. What is the compression ration? - correct answer ✅7: How is proper end-gap clearance on new piston rings assured during the overhaul of an engine? - correct answer ✅By placing the rings in the cylinder and measuring the end-gap with a feeler gauge.
Plant (AMP) Exam Questions And Answers
A turbine engine hot section is particularly susceptible to which kind of damage? - correct answer ✅Cracking The compression ratio of an axial flow compressor is a function of the - correct answer ✅Number of compressor stages Who establishes the recommended operating time between overhauls (TBO) of a turbine engine used in general aviation? - correct answer ✅The engine manufacturer Turbine engine components exposed to high temperatures generally may NOT be marked with
- Layout dye
- Commercial felt tip marker
- Wax or grease pencil
- Chalk
- Graphite lead pencil - correct answer ✅3 and 5
Plant (AMP) Exam Questions And Answers
Who establishes mandatory replacement times for critical components of turbine engine? - correct answer ✅The engine manufacturer What is the first engine instrument indication of a successful start of a turbine engine? - correct answer ✅A rise in the exhaust gas temperature The Brayton cycle is known as the constant - correct answer ✅Pressure cycle Between each row of rotating blades in a turbine engine compressor, there is a row of stationary blades which act to diffuse the air. These stationary blades are called - correct answer ✅Stators How are discharge nozzles in a fuel injected reciprocating engine identified to indicate the flow range? - correct answer ✅By an identification letter stamped on one of the hexes of the nozzle body
Plant (AMP) Exam Questions And Answers
Jet engine thermocouples are usually constructed of - correct answer ✅Chromel alumel Thermocouple leads - correct answer ✅Are designed for a specific installation and may not be altered 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 - correct answer ✅An increased fuel flow indication on the gauge 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 - correct answer ✅Higher than normal fuel flow indication In a fixed fire-extinguishing system, there are two small lines running from the system and exiting overboard. These line exit ports are covered with a blowout type indicator disc. Which of the following statements is true? -
Plant (AMP) Exam Questions And Answers
correct answer ✅When the yellow indicator disc is missing, it indicates the fire extinguishing system has had a thermal discharge. (Refer to Powerplant figure 3.) What are the fire-extinguisher container pressure limits when the temperature is 50 degrees F - correct answer ✅475-625 PSIG Which of the following fire detectors are commonly used in the power section of an engine nacelle? - correct answer ✅Rate of temperature rise detectors A term commonly used when two or more electrical terminals are installed on a single lug of a terminal strip is - correct answer ✅Stacking Aircraft electrical wire is manufactured in sizes according to a standard known as - correct answer ✅American Wire Gauge (AWG)
Plant (AMP) Exam Questions And Answers
Which of the following has the greatest effect on the viscosity of lubricating oil? - correct answer ✅Temperature Which type valve prevents oil from entering the main accessory case when the engine is not running? - correct answer ✅Check If an oil filter element becomes completely clogged, the - correct answer ✅Bypass valve will open and the oil pump will supply unfiltered oil to the engine Oil tank fillers on reciprocating engines are marked with the word - correct answer ✅'oil,' in accordance with 14 CFR part 23 In order to maintain a constant oil pressure as the clearances between the moving parts of an engine increase through normal wear, the supply pump output - correct answer ✅Remains relatively constant (at a given RPM) with less oil being returned to the pump inlet by the relief valve.
Plant (AMP) Exam Questions And Answers
From the following, identify the factor that has the least effect on the oil consumption of a specific engine - correct answer ✅Mechanical efficiency The viscosity of a liquid is a measure of its - correct answer ✅Resistance to flow Which of the following factors helps determine the proper grade of oil to use in a particular engine? - correct answer ✅Operating speeds of bearings Specific gravity is a comparison of the weight of a substance to the weight of an equal volume of - correct answer ✅Distilled water at a specific temperature
