Ram pressure velocity5/7/2023 C The efficiency of a gas turbine engine at altitude. B Ram effect' due to aircraft forward speed will cause the efficiency of the engine to. Immediately after the combustion chamber. C What part of a jet engine has the most potential energy?. its absolute pressure is inversely proportional to its volume. its absolute temperature is proportional to it's volume. its absolute pressure is proportional to its volume. C Boyle's law states that, at constant temperature, if a gas is compressed. every action has a equal and opposite reaction. the calorific value of fuel burnt is equal to aircraft. Compressor, turbine, exhaust, propelling nozzle. Inlet, compressor, combustion chamber, turbine, exhaust. C The 'core engine' or 'gas generator' is made up of the following components. provide a fuse if the driven component is overloaded. C In the dual axial flow or twin spool compressor system with a free power turbine, Nf would be an indication of. Both the compressor and combustion chamber are smaller than the turbojet equivalent. The compressor assembly is larger and combustion chamber smaller than their turbojet equivalent. Both the compressor and combustion system are larger than their turbojet equivalent. C Which of the following statements is true on a high bypass ratio turbofan?. conversion of kinetic energy to pressure energy at the face of the compressor. conversion of static pressure to kinetic pressure at the face of the compressor. the increase of dynamic pressure at the face of the compressor. C On a triple spool engine, the first stage of turbines drive. induce a swirl to the air prior to combustion. the constant velocity cycle taking place in a gas turbine engine. the continuous combustion cycle taking place in a gas turbine engine. the name given to the intermittent cycling of an electrical de-icing system. B A divergent duct will cause subsonic flow to decrease in. Power available at the turbine less the power required to drive the. A The density of gas may be expressed as. B Which law relates to the kinetic, pressure, and potential energy in a fluid flow?. A On a gas turbine engine, what is the fan driven by?. C The accessory gearbox of a high bypass engine is. its major components can be removed and replaced without disturbing the rest of the engine. the engine is constructed by the vertical assembly technique. all engines have a specific component layout. A A modular constructed gas turbine engine means that. C In a ducted fan engine, the fan is driven by the. one where there is no loss or gain of heat. one where there is an increase in kinetic energy. impingement of the prop-wash on the outside air. B A turboprop engine derives its thrust by. C The velocity of subsonic air as it flows through a convergent nozzle. just after the last compressor stage but before the burner. A The highest pressure in a gas turbine is. C Using standard atmospheric conditions, the standard sea level temperature is. C In a choked nozzle, velocity increases, and. C The Brayton cycle is known as the constant. the static pressure is less than the dynamic pressure. the static pressure and dynamic pressure are equal. A Bernoulli's Theorem states that at any point in a flow of gas. overall slower airflow and greater propulsive efficiency. Every body persists in its state of rest, or of motion in a straight line, unless acted upon by some outside force. Force is proportional to the product of mass and acceleration. To every action there is an equal and opposite reaction. A Newton's First Law of Motion, generally termed the Law of Inertia, states. C In what section of a turbojet engine is the jet nozzle located?. C If a volume of a mass of air is 546 cubic feet at 273K, at 274K it will be. B The pressure of subsonic air as it flows through a convergent nozzle. C A gas turbine engine comprises which three main sections?. C A turbojet engine is smoother running than a piston engine because. A The symbol for designating the speed of a LP compressor in a twin spool engine is. is inversely proportional to the temperature. B The pressure of supersonic air as it flows through a divergent nozzle. C Of the following, which engine type would most likely have a noise suppression unit installed?. Combustion section and compressor section. B What section provides proper mixing of the fuel and efficient burning of the gases?. the compressor section and the burner section. the burner section and the turbine section. A The diffuser section is located between. Effective perceived noise decibels (E P N d B). A Which of the following units are generally used to measure aircraft noise?. A At what point in an axial flow turbojet engine will the highest gas pressures occur?. In a twin spool compressor system, the first stage turbine drives the.
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