(i) Hammer Test: The hammer test, a method of non-destructive testing, would be carried out across all areas of the hull plating. The surveyor would gently tap the plating to assess its condition, listening for sounds indicating potential damage like cracking or delamination. Particular attention would be given to areas showing signs of corrosion or previous repairs. Areas such as welds, bilge keels, and around penetrations (e.g., sea chests) would require extra scrutiny.

(ii) Hose Test: The hose test checks the watertight integrity of the hull. This would be performed on new welds on the shell plating and other areas where watertightness is required. This is done using a nozzle with a 12.5 mm diameter and 2 bar water pressure at a distance of 1.5 m. Specific locations would include welds, sea chests, and around valve penetrations. The exact location will depend on areas of concern identified during the visual inspection.

• Welds: All weld joints, especially those in areas subject to stress or corrosion, must be carefully examined for cracks, porosity, and other defects.
• Angles and other structural members: These need inspection for corrosion, cracking and distortion.
• Bow: The bulbous bow, chain markings, and bow thruster area should be checked thoroughly.
• Stern: The stern frame is subjected to slamming and must be examined closely for cracking and buckling.
• Bilge Keel: This requires inspection for damage and proper attachment to the hull.
• Openings in shell plating: Sea chests and ship side valves (overboard valves) must be inspected for leaks, corrosion, and proper operation.
• Areas of previous damage or repair: These are especially susceptible to further corrosion or cracking and warrant close examination.
• Areas exposed during previous dry-docking: Any areas that were exposed to the elements during the previous dry-dock require close examination for damage or corrosion.
• Cathodic protection system: The effectiveness of the cathodic protection system and the condition of anodes need to be verified. Lack of anode consumption may indicate corrosion in other areas.
• Rudder and Propeller: The condition of the rudder and propeller, including the welds, should be examined for any signs of damage or corrosion.