AVSC 3330 Exam | Questions and Answers

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AVSC 3330 Exam | Questions and Answers Axial-flow compressors are less fuel efficient than Centrifugal-flow compressors. False The core of the gas turbine that generates expanding gases required to ... produce thrust is known as? The Gas Generator Why is the core of the turbine engine known as the Gas Generator? It generates the expanding gases required to produce thrust What do Gas turbine engines share jet propulsion principles with? Party balloons that have been inflated and released What is the forward-most compressor of a dual-compressor engine referred to as? The low-pressure compressor What is used to accelerate the velocity of the high-energy gases escaping from the gas generator? The nozzle In an axial-flow compressor section of a turbine engine, what helps to direct and compress the flow of air? Stator vanes What are the set of wheels called that are driven by the exhaust gases in the turbine section of a turbine engine? Turbines The principle, for every action there is an equal and opposite reaction, comes from what historical figure? Isaac Newton An axial-flow compressor is made up of an alternating series of _____. Rotating rotor blades and stationary stator vanes For large turbine engines what drives the starter motors? High pressure air What were the earliest jet engine types? Turbojets Direct drive turboprop engines offer more immediate power response when power levers are increased. True _____turboprop engine's propeller is not connected directly to the engine core, but derives its torque from the power section added to the basic engine core after the turbine section.v A free-turbine How are jet engines rated, with regards to output? Pounds of thrust How is bypass air measured on turbofan engines? Pounds per second A _____engine produces thrust solely by the high acceleration of air as it passes through and exhausts the core of the engine. Turbojet The non-mechanical connection between engine core and propeller driveshaft, on a free-turbine turboprop, is known as_____. Fluid coupling On a turbofan engine _____produces a great deal of thrust due to the highly efficient design of the turbofan blades. Bypass air In a _____turboprop engine, the propeller is driven directly from the compressor shaft through a reduction gear assembly. Direct Drive What phrase us used to describe the completion of an electrical circuit that runs through the metal structure of an aircraft? Ground At approximately what psi do most hydraulic systems run on large turbine aircraft? 3000 psi What devices or systems are powered by high pressure bleed air on a turbine aircraft? Mark all that apply Anti-ice Pressurization Engine Starters Air Cycle Machines When is electrical load shedding required in a turbine powered aircraft? When an aircraft that typically has two operating generators carrying the electrical load looses one of the generators Why is use of bleed air sometimes restrictive on takeoffs and go-around situations? Use of bleed air reduces the power produced by the engine supplying it What is the best way to describe an aircraft battery? A power reservoir that stores electrical energy in chemical form What is a negative characteristic of a ni-cad battery? Ni-cad batteries are subject to thermal runaway Hydraulic systems are based on the simple principle that fluids are_____. Flexible but non-compressible Alternating Current can be converted to Direct Current through a rectifier? True What do battery amp-hour ratings indicate? How many amps the battery is designed to put out over a period of time What is the term used to describe the maximum ratio of cabin pressure to outside air pressure that the pressurization system and vessel can sustain? Maximum Differential Pressure What do large aircraft incorporate with the ailerons to assist and supplement ailerons at slower speeds? Roll spoilers _____are installed in many aircraft where maximum allowable takeoff weight is significantly greater than maximum allowable landing weight, and if heavily loaded an aircraft may need to return for landing immediately after takeoff if there is an emergency. Fuel Dump Valves Select the types of oxygen breathing systems used in major aircraft systems. Pressure-demand system Continuous-flow/diluter system Diluter-demand system In order to descend rapidly at low airspeeds _____ are used on the upper surface of the wings of large aircraft. Flight Spoilers Because large aircraft often require power-assisted flight controls so the pilots can handle them _____are designed to give the pilot a normal control feel. Hydraulic Control Boosts These type of flaps, when extended move on tracks aft of the trailing edge of the wing structure instead of hinging downward changing the wings camber and increasing surface area. Fowler Flaps Engine driven fuel pumps operate at a higher psi than boost pumps or motive flow pumps, and typically operate at about_____. 900-1000 psi Why are solid chemical oxygen generators a risk to passengers? The chemical reaction required to produce oxygen generates a large amount of heat, posing a possible burn risk if they are touched _____are typically used to transfer fuel from one tank to another and to provide emergency back-up for the engine driven low pressure pumps. Auxiliary pumps What type of deicing program is used by incorporating vehicles and personnel to spray glycol-based liquid on the airframe of the aircraft prior to takeoff? Ground Deicing What is a drawback of using bleed air anti-ice systems? They draw a lot of power from the engines compressor section What is an 'inertial separator' on an aircraft engine? A door located at a sharp corner of the induction system used to help FOD bypass the engine Why do most turbine powered aircraft prefer to use anti-ice on engine cowlings instead of deice? Turbine engines are threatened by ingestion of solid ice chunks breaking off the engine cowl Large jets are commonly equipped with_____, where hot, high pressure bleed air is routed under the leading edge surfaces to prevent the formation of ice. thermal leading edge anti-ice systems What kind of ice protection equipment on aircraft is used to remove ice that has already accumulated on the aircraft surfaces? Deice What is another phrase for an inertial separator? Ice Vane What negative effect can heavy rain have on a turbine engine? Flameout What type of ice detector is used on most aircraft? A vibrating element which detects ice when the element vibration begins to immobilize as ice is accumulated What is a squat switch on an aircraft? A weight on wheels or landing gear safety switch What is a LOFT, and when is it used? Line Oriented Flight Training used in simulators to train crews on team work and flight deck procedures What is a Non-flying pilot (NFP)? The crewmember which monitors the flying pilot and reads the checklists According to Advisory Circular 120-71A Standard Operating Procedures for Flight Deck Crewmembers, what are the characteristics of a stabilized approach? A constant rate of descent A constant angle approach Ending near the touchdown point What is the primary function of checklist in a flight deck? To ensure that the flight crew safely and properly configures the aircraft before and during each flight According to the Advisory Circular 120- 71A: Standard Operating Procedures for Flight Deck Crewmembers, what is the mission of SOP's? To achieve consistently safe flight operations through adherence to SOPs that are clear, comprehensive, and readily available to flight crewmembers. Who sets the tone in the flight deck and aircraft cabin? The Captain What is used to follow up a flow check? A challenge and response checklist _____checklists are those used for routine portions of a flight. Normal _____simply list tasks on a paper card. Paper checklists What is a challenge and response checklist used for? To follow up flow checks [Show More]

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