Exam BPL Gas - Balloon Pilot License: Communication 10 Questions no time limit

1 - What is the call sign of the aerodrome control?
2 - What is the correct frequency for an initial distress message?
3 - The directional information "12 o'clock" is correctly transmitted as...
4 - Under what conditions may class D airspace be entered with a radio failure?
5 - Urgency messages are defined as...
6 - Which of the following messages has the highest priority?
7 - What is the correct way to transmit the call sign HB-YKM?
8 - The altimeter has to be set to what value in order to show zero on ground?
9 - Which abbreviation is used for the term "abeam"?
10 - What is the correct way of acknowledging the instruction "DZF after lift-off climb straight ahead until 2500 feet before turning right heading 220 degrees, wind 090 degrees, 5 knots, runway 12, cleared for take-off"?