1.It is always at the beginning of the word
2.The first همزة القطع is always with a فتحة and for questioning- استفهامية
3.The second همزة القطع has either a فتحة, or a كسرة or a ضمة and read with تسهيل
•In the recitation of أبي عمرو البصري an alif is always inserted between first hamzah and the second if the second hamzah has a فتحة, or a كسرة