What is the ruling on swearing an oath upon the Quran to ensure the integrity of general secondary examinations and prevent cheating, and what are the consequences of not adhering to it?

There is no harm in placing one's hand on the Mus'haf when taking an oath, as it is a binding oath. This is permissible if the ruler deems it necessary to emphasize the oath. Whoever does not abide by it must offer expiation for the oath and is required to repent and seek forgiveness.