1) What is the main function of an engine? a) Generate power b) Store energy c) Reduce noise d) Increase weight 2) Which type of engine uses spark plugs? a) Diesel engine b) Electric engine c) Gasoline engine d) Steam engine 3) What does RPM stand for? a) Rotations per minute b) Revolutions per mile c) Rounds per meter d) Rates per month 4) Which part of the engine converts fuel into motion? a) Piston b) Radiator c) Battery d) Exhaust 5) What type of engine is commonly used in airplanes? a) Jet engine b) Steam engine c) Diesel engine d) Gasoline engine 6) Which engine component cools the engine? a) Radiator b) Alternator c) Carburetor d) Crankshaft 7) What fuel does a diesel engine use? a) Diesel b) Petrol c) Kerosene d) Natural gas 8) Which engine type is most efficient? a) Electric engine b) Gasoline engine c) Diesel engine d) Steam engine 9) What is the purpose of a turbocharger? a) Increase power b) Reduce emissions c) Lower noise d) Decrease weight 10) Which engine part stores energy? a) Battery b) Piston c) Radiator d) Exhaust 11) What does a carburetor do? a) Mixes air and fuel b) Stores oil c) Cools engine d) Generates spark 12) Which engine uses a rotor instead of pistons? a) Rotary engine b) Jet engine c) Diesel engine d) Steam engine 13) What is the main advantage of a hybrid engine? a) Fuel efficiency b) High speed c) Low cost d) Heavy weight 14) Which engine type uses compressed air? a) Pneumatic engine b) Electric engine c) Gasoline engine d) Diesel engine 15) What is the role of engine oil? a) Lubricate parts b) Cool engine c) Store energy d) Generate power

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