Hydrant Pumps Introduction What are Hydrant Pumps? It is a machine which raises water from a lower level to a higher level and from one place to another by the action of centrifugal force. Centrifugal force It is that force which acts upon a body moving in a circular path, […]
Fire Proximity Suits Definition Fire proximity suits are clothing for use by firefighters while approaching fire where it is very difficult to tolerate the temperature. Types of suits Approach suit – 2000F Rescue suit – up to 7000F Entry suit – 7000F and above There are 2 types of fire:
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Fire Hydrant System Definition A fire hydrant is a connection point where water is accumulated and connected by pumps by which firefighters can efficiently fight with fire. Components & their Installation a. Fire Water Reservoir: Tanks of adequate capacity depending upon the risk to be covered. They should
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Foam & Foam making Equipment Introduction Definition: Foam is concentration for producing mechanical foam for firefighting. How is fire stopped by foam? A constant foam concentrate is added to the portioner. The resulting water/foam concentrate is expanded with air in the foam generator. The foam blankets the fuel surface smothering
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Internal Combustion Engine Introduction Internal Combustion System The engine consists of a piston and a cylinder which is provided with inlet valves and exhaust valve. The opening and closing of these valves are controlled by the motion of the piston. There are four steps involved in IC Engines: Intake (Suction). Compression. Power. Exhaust.
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Flammability & Combustibility Introduction What is Flammability? If the material easily catches fire under normal circumstances and with the help or minimal ignition source, just a spark is sufficient. Eg: Propane. What is Combustibility? Material like wood and paper require vigorous condition to catch fire, a simple spark is not enough.
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Central Pollution Control Board Introduction The Central Pollution Control Board is a statutory part of India which works under the Ministry of Environment, Forest and Climate Change. The Board was established on 22 September 1974 under the Water (Prevention and Control of Pollution) Act, 1974. This board consists of a chairperson who
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Scope of Environment Chemistry Introduction Environmental Chemistry is the study of chemicals as they pass through our environment and the effects they cause on the air, water, soil, etc. It is an important field of study as it helps us to trace and control contaminants. Environmental chemistry is the study of chemical processes occurring
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Solid Waste Management Overview Definition Type & Source Generation of Solid Waste Collection, Transportation & Segregation of Solid Waste Disposal methods Principles of Waste Management Solid Waste: Any unwanted or discarded material from residential, agriculture commercial or industrial activities that causes environmental problems is called solid waste. Solid Waste Management: Solid waste management is
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Waste Water Treatment (or) Sewage Water Treatment Introduction Wastewater treatment is any process, operation or combination of process and operations that makes the wastewater less dangerous and repulsive to man. It is a combination of physical, chemical and biological process. There are three types of operation and process: Physical unit operation: It
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Water Pollution Definition Undesirable changed caused in water which make changes in physical, biological and chemical characteristics are called as Water Pollution or Polluted Water. Causes of Water Pollution Industrial waste Domestic waste Sewage & wastewater Agriculture pesticides & fertilizers Oil spillages (from ships) Marine dumping Acid rain Thermal process (Power Plants)
Heat & Ventilation Heat Heat is a form of energy which produces a change in the temperature of any substance. In simple language ‘Heat is defined as the flow of energy from a warm to a cooler object’. The direction of flow of the heat energy takes from the substance of higher
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Housekeeping Definition House Keeping means not only cleanliness but also orderly arrangement of operation tools, equipment, storage facilities and supplies. It is a practice method of increasing production and reducing accident and improving employee’s morale. 5 “S” method 5’S’ was derived from Japanese word which are as follows: Seiri (sort): It
Industrial Hygiene Introduction Industrial hygiene is an art of science devoted to anticipation, recognition evaluation and control of all the factors that arise from the workplace which can cause sickness / illness among the workers. Industrial Hygiene: In the first century AD/ Pling the Elder, Roman scholar
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Ergonomical Hazards Introduction It is derived from Greek word “ergo” means work, and “nomos” means rule or law. It simply means “fitting the job to the workers” (right man in the right job OR work should be perform according to law). Ergonomics is defined as the “study of human characteristics in relationship to work
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