Read the passage below and answer the questions as follows. By December 1, Naval Headquarters had instituted surveillance and patrolling exercise -Operation Chutney. The two ships positioned at Karwar, Rajput and Kirpan, had been withdrawn and Betwa and Beas, two anti-aircraft frigates, commenced patrol off the Goan coast at a distance of 13 kilometers. They were to report all ingress and egress -of shipping, aircraft and personnel-into and out of the Portuguese enclaves and to retaliate with necessary force if engaged by the Portuguese units in the air or on the surface. They did not observe any air activity other than four-engined and two-engined transport aircraft occasionally using this airfield, nor did they observe any flying activity from anywhere in the vicinity. All this convincingly indicated the absence of any other airfield in the area and also the absence of any Portuguese combat aircraft. The ships on patrol also maintained an effective watch on the only Portuguese man-of-war seen, the frigate Afonso de Albuquerque, whose movements between Anjadip Island and Marmagao were reported. It was also observed that other than the Albuquerque, there did not seem to be any other men-of-war of the Portuguese Navy of similar or larger size in the area.(i) The two ships positioned at Karwar, __________ a) Vikramaditya b) Betwa and Beas c) Rajput and Kirpan d) Shivalik(ii) The frigate Afonso de Albuquerque, whose movements between ________ were reported a) Anjadip Island and Marmagao b) Calvim c) Vanxim d) Cumbarjua(iii) How many Portuguese combat aircraft did they observe? a) 2 b) 0 c) 1 d) 5(iv) The ships on patrol also maintained an effective watch on the only men-of-war of the Portuguese Navy a) U.S. Navy b) Pakistan Navy c) China Navy d) Portuguese Navy