1.what device is the clutch? 2.what units does it connect? 3.what is the clutch used for? 4.where is the clutch placed? 5.what plates does the clutch consist of? 6.what is the basic principal operation of the clutch? 7.what is the clutch controlled by? 8.what takes place when the clutch pedal is at rest? 9.when does the engine run idly?