Is it specified by the following road sign which rules for giving right-of-way should be applied?

1. Yes. You have right-of-way since you are driving in the main road.
2. Correct answer: No. Right-of-way is determined according to lawful right-of-way rules or according to the traffic signs that are placed in the intersection.
3. Yes. According to this sign, right-of-way should be given to vehicles that come from the right only.
4. Yes. Right-of-way should be given to vehicles that come from the right and from the left.

WhyThe sign tells you about a junction ahead but does not make your road the main one. Priority is set by the rules and the signs at the intersection.