Chief Mate(PH-1) - Format of NAVAL ARCHITECTURE

GOVERNMENT OF INDIA
FIRST MATE OF A FOREIGN GOING SHIP (PHASE – I)
FUNCTION: CONTROLLING THE OPERATION OF THE SHIPS & CARE FOR PERSONS ON BOARD (Management Level)
PAPER: NAVAL ARCHITECTURE PAPER - I

TIME: 3 Hours                                  PASS MARKS: 120                          MAX. MARKS: 200

Notes:
1. All questions in Part A are compulsory. and carry 30 marks each
2. Attempt any four out of five from Part B. (Each question carry 20 marks)
3. Wherever applicable, sketches should be drawn to support the answer.


Questions based on

15.1.1 Ship Construction
- Welding: Down hand vertical and overhead welding, butt, lap and fillet welds, chain and intermittent welding, weld faults, tests of welds, electric arc welding, TIG and MIG.
- Bulkheads: Transverse bulkheads and racking stresses, margin line, weather tight, rule regarding penetration of collision bulkhead, testing of bulkheads for tightness.
- Watertight and weather-tight doors: Water tight and weather tight doors, categories of watertight doors, rules regarding water-tight doors.
- Corrosion and its prevention: meaning of corrosion, types of corrosion, galvanic actions, cathodic protection, structure of paints, preparing a surface for painting.
- Surveys, certification & dry-docking: Frequency of classification society surveys, items to examine in dry dock, cleaning preparation and painting of the hull in dry dock. Surveys and certification including Harmonised Ship Surveys and Enhanced Surveys, Condition Assessment Scheme and Condition Assessment Programme.

15.2.1 Ship Stability
- Approximate calculation of areas and volumes: Simpson’s rule to calculate areas, volumes and centroids.
- Effects of density: TPC, FWA, DWA calculations
- Calculation of free Surface effect
- Simplified stability data: Stability information supplied in simplified form, use of diagrams of dead weight moment.
- Trim and list: LCG, LCB and relationship with trim, trimming moment, loading a given mass to produce a required trim, loading a mass to keep the aft draught constant, correction of draughts, forward aft and mid-ship.
- Dynamical stability: Definition of dynamical stability and calculation of same.
- Intact stability requirements for carriage of the grain
- Dry-docking and grounding: Virtual loss of GM due to dry docking and grounding, calculation of residual GM and draft.
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PART A

 Q. 1 Ship Stability- Numerical (Application of Simpson’s Rules, Grain Stability)

Q.2 Ship Stability- Numerical (Trim, Dry-docking, Grounding with fixed data)

Q.3 Ship Stability- Numerical based on Ship Stability Booklet (List, Trim, Dry-docking, Grounding, Intact stability requirements)

Q.4 Ship Construction- Sketch
(Construction of W/T bulkheads and its attachments to sides and tank top, How water tightness is maintained when bulkheads are pierced by longitudinal, beams or pipes, Arrangement of power operated sliding W/T door, Hinged W/T door and means of securing them, Ramp doors of Ro-Ro ships, Ship side doors)

PART B

 Q.5 and Q.6 Ship Stability/ Ship Construction- Theory
(Ship Stability: Effect of density on trim, Effect of beam, freeboard and length on GZ curves, Effect of shift of weight on GZ curves, Dry-docking)
(Ship Construction: Rules and Regulations for Bulkheads, Watertight doors, Condition Assessment Scheme and Condition Assessment Programme)

Q. 7 Surveys and Certificates

Q. 8 Welding (Types, Faults, Tests)

Q. 9 Corrosion/ Painting

Please note that the above format is only an indicative of the examination paper. The candidates are advised to refer to detailed teaching syllabus and the course outline.
                       
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