HELPS IN PROPAGATING RADIO SIGNALS
Which of the following metals remains in liquid form under normal conditions? 1 Uranium 2 Radium 3 Zinc 4 Mercury
What is the Protoplasm ?
How many colours the sunlight spectrum has ? 1 Five 2 Three 3 Seven 4 Nine
Which is the largest refractor telescope?
wheather lightning will attack a aeroplane during flying if not why
Who is the chairman od atomic energy commission of india?
What are the aluminium alloys that you supply?
A substance which changes readily into vapor without heating is called 1 Efflorescent 2 Synthetic 3 Volatile 4 Effervescent
Which of the following elements is obtained from sea weeds? 1 Argon 2 Sulpur 3 Vanadium 4 Iodine
Soda water contains 1 Nitrous acid 2 Carbonic acid 3 Carbon dioxide 4 Sulphuric acid
Deep blue color is imparted to glass by the presence of 1 Iron oxide 2 Cupric oxide 3 Nickel oxide 4 Cobalt oxide
why ammonia cylinder getting icing outside of cylinder when it approx half or less than it...??