1) Which engine can reach supersonic speed? a) High-bypass turbofan b) Low-bypass turbofan c) Turboprop 2) Which engine generates high subsonic speed? a) High-bypass turbofan b) Low-bypass turbofan 3) Which engine is most efficient between 30,000 and 40,000 ft? a) Low-bypass turbofan b) High-bypass turbofan c) Turbojet 4) Less fuel means… a) Higher cost b) Better efficiency and longer range c) Lower thrust 5) Which engine has lower fuel efficiency? a) High-bypass turbofan b) Low-bypass turbofan c) Both equal 6) Famous manufacturers of low-bypass turbofan engines include: a) Rolls-Royce, GE, Pratt & Whitney, Safran b) Tesla, Honda, Yamaha c) Airbus, Boeing 7) Which engine provides a higher power-to-weight ratio? a) High-bypass turbofan b) Low-bypass turbofan c) Turboprop 8) Which engine includes an afterburning (reheat) system? a) High-bypass turbofan b) Low-bypass turbofan c) None 9) Which engine gives a shorter range? a) High-bypass turbofan b) Low-bypass turbofan 10) Which engine design is more streamlined? a) High-bypass turbofan b) Low-bypass turbofan c) Turbofan with propellers 11) Which engine is heavier due to its large fan diameter? a) Low-bypass turbofan b) High-bypass turbofan c) Turbojet 12) High-bypass turbofans are not efficient at… a) Lower altitudes b) Higher altitudes c) Sea level 13) Which engine offers greater operational range? a) Low-bypass turbofan b) High-bypass turbofan c) Turbojet 14) What is the role of an afterburner? a) Reduces noise b) Increases thrust by injecting fuel into exhaust gases c) Improves fuel economy 15) Famous manufacturers of high-bypass turbofan engines include: a) CFM, GE, Rolls-Royce, Pratt & Whitney b) Safran, MTU, IHI c) Lockheed Martin

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