RRB JE 2018 CBT 2 Mechanical Engineering exam held on Aug 31, 2019 was an important stage for aspirants aiming to become Junior Engineers in Indian Railways. The exam pattern included 150 questions to be solved in 120 minutes, carrying 1 mark each with a 1/3rd negative marking for wrong answers. The selection process included CBT 1, CBT 2, document verification, and medical examination.