Everything You Need To Know
IMU-CET & Merchant Navy Frequently Asked Questions
Get instant answers on exam format, subject-wise weightage (Physics, Maths, Chemistry, English, Aptitude), shipping company sponsorships, and DG Shipping medical standards.
IMU-CET Exam Pattern & General Queries
Exam Blueprint
The Under-Graduate (UG) IMU-CET examination is an online Computer-Based Test (CBT) lasting 3 hours (180 minutes). It consists of 200 objective multiple-choice questions broken down into:
- Mathematics: 50 Questions
- Physics: 50 Questions
- Chemistry: 20 Questions
- English: 40 Questions
- General Aptitude: 40 Questions
Yes, as per recent guidelines, IMU-CET follows a negative marking system where 0.25 marks are deducted for every incorrect answer, while +1 mark is awarded for each correct response. Leaving a question unattempted results in 0 marks.
IMU-CET for all undergraduate courses (B.Sc Nautical Science, B.Tech Marine Engineering, and DNS) is conducted once a year (usually in May or June) for the August academic intake. However, for DNS only, an additional entrance exam is sometimes announced for the February intake depending on university circulars.
Mathematics Preparation & Subject FAQs (50 Marks)
High-Yield Topics
Based on previous examination trends, the most critical chapters are:
- Calculus: Definite & Indefinite Integrals, Limits, Continuity, and Differential Equations (12–15 questions).
- Vectors & 3D Geometry: Dot/Cross products, shortest distance between lines, planes (8–10 questions).
- Matrices & Determinants: Properties of determinants, adjoints, inverse (4–6 questions).
- Probability: Conditional probability, Bayes' Theorem, binomial distribution (4–5 questions).
- Trigonometry & Complex Numbers: Inverse trig functions, modulus, argument (5–7 questions).
IMU-CET Mathematics questions are generally easier than JEE Advanced and comparable to moderate JEE Main / state CET level. While NCERT builds your theoretical core, practicing with objective speed-test question banks (like RD Sharma Objective or specialized IMU-CET practice modules) is essential to solve 50 math questions within time limits.
No physical calculators or formula sheets are permitted inside the examination center. Candidates must memorize standard derivatives, trigonometric conversions, standard integration forms, and coordinate formulas.
Physics Preparation & Subject FAQs (50 Marks)
Physics in IMU-CET typically follows an approximate 60% numerical to 40% direct theoretical/conceptual ratio. Most numericals are direct 1-to-2 formula substitutions rather than complex multi-step derivations.
- Mechanics: Newton’s Laws, Friction, Rotational Motion, Gravitation, and Work-Energy theorem.
- Electrostatics & Current Electricity: Ohm's law, Kirchhoff’s rules, resistor-capacitor circuits.
- Optics: Lens formula, Snell's law, total internal reflection, Young's double-slit experiment.
- Thermodynamics & Heat: Carnot engine, First law of thermodynamics, heat transfer.
- Modern Physics: Photoelectric effect, de Broglie wavelength, Bohr model.
Company sponsorship aptitude tests place an even greater emphasis on Applied Mechanical Physics, including pulleys, levers, gear ratios, fluid pressure (Bernoulli's/Pascal's principle), buoyancy, and center of gravity.
Chemistry Preparation & Subject FAQs (20 Marks)
Chemistry has the lowest weightage (20 questions out of 200) because ship navigation and operations rely more heavily on Physics and Mathematics. Focus directly on Class 11 & 12 NCERT line-by-line reading. Avoid spending weeks on lengthy organic mechanisms; concentrate instead on:
- Electrochemistry (Nernst equation, Galvanic cells, battery corrosion)
- Chemical Kinetics (order of reaction, half-life)
- Periodic properties and chemical bonding
- Basic stoichiometry, solutions, and gas laws
Yes. 2 to 3 straight recall-based questions are frequently asked from everyday topics like Polymers, Biomolecules, and Environmental Chemistry (greenhouse gases, ozone depletion, water pollution).
English, General Aptitude & Maritime GK (80 Marks)
English tests your command over functional grammar and language logic:
- Vocabulary: Synonyms, Antonyms, Analogies, and One-word substitutions.
- Grammar: Subject-verb agreement, active/passive voice, direct/indirect speech, prepositions.
- Sentence Reconstruction: Spotting errors, sentence completion, and idioms.
- Reading comprehension passages testing inference.
Syllabus Breakdown
This 40-mark section comprises:
- Logical & Non-Verbal Reasoning: Blood relations, coding-decoding, number/letter series, direction sense, syllogisms, mirror images, and cube folding.
- Maritime Awareness: Major international sea canals (Suez, Panama), major Indian and global sea ports, ocean currents, international maritime organizations (IMO headquarters in London), and basic nautical terms (Port, Starboard, Hull, Bow, Stern).
- General Current Affairs: Geography, important global straits (Strait of Malacca, Hormuz, Bab-el-Mandeb), and recent shipping trade routes.
Company Sponsorships & Selection Process
An IMU-CET rank provides eligibility to join an approved maritime college. A Company Sponsorship is an official advance employment letter from a shipping company (e.g. Anglo-Eastern, Maersk, Synergy, Fleet) that guarantees your shipboard placement and sea-time training before you even begin your college classes. For the DNS course, having a sponsorship is legally mandatory.
Shipping giants use gamified behavioral testing engines (such as Cut-e, Thomas Profiling, and 16PF) to assess personality traits under isolation, emotional stability, situational awareness, multitasking, and obedience to safety protocols onboard commercial ships.
Most major shipping corporations open online sponsorship applications between February and May for the August batch. It is strongly advised to apply early because exam slots are allotted on a rolling basis.
DG Shipping Medicals & Eye Standards
Strict DGS Norms
For Deck Officers (DNS and B.Sc Nautical Science), candidates must possess 6/6 vision in each eye naturally without glasses or contact lenses. Color blindness of any degree is strictly disqualifying.
Yes. For Engine Department officers (B.Tech Marine Engineering, GME, and ETO), spectacles are permitted up to 6/12 in each eye or 6/9 in the better eye (with corrective lenses up to ±2.5D). However, normal color vision verified via the 38-plate Ishihara chart is mandatory for all maritime positions.
Under DG Shipping medical rules for entry-level Deck Cadets, refractive surgeries such as LASIK, PRK, or ICL are not officially approved if you are under 20 years of age or if corneal scarring is detectable during slit-lamp ophthalmic examination.
Have a Specific Question About Your Eligibility?
Not sure about your PCM percentage, company test dates, or medical suitability? Connect directly with our maritime counselors and Master Mariners.