Course Duration: 2 years -04 semesters. Trainee marine engineers, also famously known as junior or 5th engineers on board ships, come on merchant vessels as part of their learning process and also to gain practical knowledge in order to qualify for competitive exams.Approved by The Directorate General of Shipping, Government of India. Leading to Class IV Marine Engineer Officer Certificate of Competency awarded by the D.G. Shipping, Ministry of Shipping, and Government of India after six months of Sea Service. This enables the cadets to become Marine Engineers on board Merchant Navy Ships worldwide.