Math, logic problems. According to official website of Shanghai Jiaotong University, the contents of the electromechanical shunt test in engineering experimental class are math and logic, both of which are multiple-choice questions, accounting for 50% respectively. Shanghai Jiaotong University, referred to as "Shanghai Jiaotong University", is located in Shanghai. It is a national key university directly under the Ministry of Education of People's Republic of China (PRC), located in Shanghai and directly under the central government.