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Q. Cryogenic Science is related to –
Cryogenic means Lower temperature (0°C to – 150°C) Engine that works at very low temperature are known as cryogenic engines. In these fuel is used in the form of Liquid Hydrogen and Liquid oxygen. This is used in the space ships and Launching vehicles.
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Q. Water is not effective in extinguishing a fire caused by petrol as
Q. Which among the given is the hardest element?
Q. Which of the following is the fundamental quantity ?
Q. Which of the following has the least penetrating power?
Q. In the electroplating of gold, the electrolyte used is
Q. Permanent hardness of water may be removed by the addition of
Q. Water is not suitable as a calorimetric substance as it:
Q. Which one of the following pairs of rays is electromagnetic in nature?
Q. Which of the following metal forms Amalgam with other metals?
Q. The greenhouse effect is caused by the higher level of which gas in the atmosphere
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