Examlex
Which of the following gives the greatest increase to the economic progress of a developing country?
Valves
Mechanical devices in an engine that open and close to allow the intake of fuel/air mixture and the exhaust of combustion gases.
Camshaft Open
The period when the camshaft lifts the valve off its seat, allowing for air/fuel mixture intake or exhaust gas expulsion.
Smart Key
A device that allows for keyless entry and ignition of a vehicle, using radio frequency identification (RFID) technology to communicate with the car's locking mechanism.
Antitheft System
A security mechanism designed to deter or prevent unauthorized access or theft of a vehicle or its contents.
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