Generally speaking, there is no need for training in the exam of Erjian, because the questions of Erjian are generally impartial and there are a lot of online materials. If economic conditions permit or you need it, you can sign up for a training class.

The certificate obtained by Erjian can be the project manager of small projects, such as projects with an investment scale of less than 30 million. The second-class constructor's certificate can be attached, and the annual attachment fee is about 8000 yuan.

The second constructor exam subjects:

Building engineering laws and regulations and related knowledge, building engineering construction management and professional engineering management and practice.

The second construction major is divided into:

Construction engineering, water conservancy and hydropower engineering, highway engineering, municipal public works, mining engineering, electromechanical engineering.