CURRENT AFFAIRS

Detailed explanation-1: -INS Visakhapatnam is the first of P15-B stealth destroyers. The 163 m long ship, which will be propelled by four gas turbines, is designed to achieve a speed of over 30 knots at a displacement of approx 7300 tons.

Detailed explanation-2: -Frigates, which are naval vessels intermediate between corvettes and destroyers, have had a significant role in the naval history of India.

Detailed explanation-3: -The Saryu class of offshore patrol vessels (OPV) are advanced patrol ships of the Indian Navy built at the Goa Shipyard Limited. These vessels are capable of ocean surveillance and monitoring and can maintain control of shipping lanes.