The chemical used as a ‘fixer’ in photography is
1 Borax
2 Sodium thiosulphate
3 Sodium sulphate
4 Ammonium persulphate
A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons
Radioactive disintegration of uranium ultimately results in formation of 1 Radium 2 Thorium 3 Polonium 4 Lead
Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
Using an applied force of a Newton across one meter is known as a:
Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite
Who propounded the signs of the zodiac?
why our head's weight not feel our body?
Which among the following is a positively charged particle emitted by a radioactive element? 1 Alpha ray 2 Beta ray 3 Gamma ray 4 Cathode ray
need for proper earthing
Which type of fire extinguisher is used for petroleum fire? 1 Foam type 2 Soda acid type 3 Powder type 4 None of these
Find the odd one: 1 Marble 2 Chalk 3 Limestone 4 Slaked lime
Which are the units of functioning in vssc?