1. Type metal used in printing press in an alloy of : (2)
(1) lead and copper
(2) lead and antimony
(3) lead and bismuth
(4) lead and zinc
2. Sour taste of ‘Coca Cola’ is due to the presence of : (2)
(1) acetic acid
(2) phosphoric acid
(3) hydrochloric acid
(4) formic acid
3. Who of the following has won the Australian Open women’s singles title 2015? (4)
(1) Maria Sharapova
(2) M adison Keys
(3) Ekaterina Makarova
(4) Serena Williams
4. The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as : (4)
(1) Modulation
(2) demodulation
(3) synchronizing(4) digitizing
5. The first Guinness Book of World Records appeared in the year (2)
(1) 1950
(2) 1954
(3) 1960
(4) 1963