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Fire Alarms : Most modern fire alarm systems are electric and can be activated from several points throughout a building. These points usually consist of glass-covered switches which should be painted red and sited no more than 30 metres apart.
Some sophisticated systems integrate alarm buttons with a smoke detector system, and it is usual for a complete ban on smoking to be enforced in a building protected by a smoke detector system. The fire brigade should be called in case there is a need. The person-in-charge should be trained to assess the severity in case of an outbreak of fire and act accordingly.
TO SHOW THAT AIR HAS WEIGHT Drive a thin nail by the exact centre of a long rod such as a metre stick or a yard stick. Balance the stick by resting the nail on the rims of two
Explain Sympathetic - Nerves System Sympathetic, as the word suggests, means to sympathize. The body sympathizes during fight, flight and fright reaction. For example, have you
Obesity : Generally, fat people think that their overweight is due to their constitution and for heredity. It could be true in some cases. But have you ever come across a fat labou
Moisture Content of Soil As mentioned above the degree of moisture pertains to relative concentration (rather than the absolute amount) of water, independent of the size of sam
advanced in live zoology
Procedure : Steps 1 to 3 and step 5 are demonstration steps and will be performed by your counsellor. Observe these steps carefully. 1. The cotton plugs/caps of the test tubes,
Demonstrating an eclipse of the moon Use a flash light or a lighted candle in a darkened room to show the sun. Hold an 8 cm rubber ball in one hand to show the earth. Hold a 2-
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Define the Microwave Processing Food industry, in the recent years, has witnessed the emergence of microwave oven as a substitute for thermal oven for a number of food process
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