What are the future income expectations of the second-level constructor, supervision engineer and cost engineer, and which one is suitable for the water supply and drainage major?

The second-level constructor takes the exam first, because the work experience requires one year after the undergraduate course. The income is linked to the monthly 500 yuan, and if this is taken as the monthly professional income, it will be about 3,000 yuan.

The supervision engineer exam requires eight years' work experience, and the monthly salary of supervision income is about 2000. If the director's annual salary is 20-50w, but he has no business relationship and background, he can't be a director.

The cost engineer exam requires that after working for five years, he will earn 500 yuan every month. If this is taken as the annual professional income, it is probably 10w.

Markets everywhere are similar.

Test difficulty: the second-level constructor is the easiest, followed by the supervision engineer, and the cost engineer is very difficult!

Possibility of one-time passing: the second-level constructor can pass easily. The rest of the pass rate is extremely low.