Which of the following alloys is used for making magnets?
1 Duralumin
2 Stainless steel
3 Alnico
4 Magnalium
Optic fibers are mainly used for which of the following? 1 Communication 2 Weaving 3 Musical instruments 4 Eye surgery
A team of u.n scientists visited thumba?
A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
Soda-acid fire extinguisher involves the reaction between 1 Sodium hydroxide and nitric acid 2 Sodium bi carbonate and sulphuric acid 3 Sodium sulphate and carbonic acid 4 Sodium carbonate and hydrochloric acid
What are luminous irregular nebulae?
Water is a compound because 1 It exists as a solid, a liquid or a gas 2 It contains hydrogen and oxygen 3 It contains two different elements joined by chemical bonds 4 It cannot be split up into simpler substances by chemical means
how is rrb model question paper for science junior engineer gr.II
What was the code name given to the first explosion?
What is a nuclear triad?
Study Of Life in outer space is known As
Names of some plants and trees that sleep during the day
how is electricity converted from the potential energy of water falling from dams?