The first mechanical computer designed by Charles Babbage was called : 1) Abacus 2) Analytical Engine 3) Calculator 4) Processor

Fruit ripening hormone is : 1) Ethylene 2) Auxin 3) Kinetin 4) All of these

By which of the following can petrol fire be extinguished ? 1) Sand 2) Water 3) Carbon dioxide 4) Saw dust

To which theory of conservation is related the ‘first’ law of thermodynamics ? 1) Charge 2) Momentum 3) Energy 4) Matter

The main element of protein is : 1) Hydrogen 2) Nitrogen 3) Oxygen 4) Carbon

In view of environmental problems, the use of which insecticide has been reduced ? 1) Gammexane 2) D.D.T. 3) B.H.C. 4) D.M.T.

The ‘parsec’ is the unit of : 1) Distance 2) Time 3) Energy 4) Temperature

Which of the following causes Swine flue ? 1) Virus 2) Bacteria 3) Fungi 4) Tape worm

Which of the following develops immune system in the body ? 1) Antigen 2) Antibody 3) Enzymes 4) Hormones

A device that converts digital signals to analog signals is : 1) A Modem 2) A Packet 3) A keyboard 4) None of these