gas
noise
The noise
Noise !
The noise
it will make you crazy
Noise. Without noise, it can't work. Noise is in an engine, and without it does not work. Every engine has to make some kind of noise, internal or external, inside or outside the engine.
It is noise .
A bicycle without wheels serves no practical purpose as the wheels are essential for its function of providing transportation.
Yes, because without one, the noise of the engine or motor would be too loud, and the muffler serves a purpose of applying back pressure for compression.
Yes, petrol is necessary for burning combustion in spark ignition engines. It serves as the fuel source that, when combined with air and ignited by a spark plug, initiates the combustion process that powers the engine.
In small engine cars, the centrifugal clutch serves as an automatic clutch that allows the vehicle's engine to idle without the driver doing anything. Such clutches are commonly used in chainsaws, go-karts, and lawnmowers.
No object serves no purpose, though objects serve a purpose when they are needed. An object that serves no purpose is one that is not needed at the time. Synonyms for something that serves no purpose are superfluous, unnecessary, needless, or excrescent.