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Electricity beyond doubt is very useful and essential for us; but if dealt with carelessly, it can prove to be very fatal. It is compulsory for a laboratory assistant to be sure of the colour code of electric wires. The person should be able to calculate the current for different electrical appliances. To prevent any hazard from electricity, one should follow a safe conduct i.e., proper use of adaptors, plugs and also the cable and flex routing. One should keep checking every plug, socket and lead in the laboratory from wire to wire. Earthing is also very important while dealing with electricity. It is essential to learn how a piece of equipment can be earthed and also to test the connections. ELCBs are in large use for this purpose. The lab assistant should be aware of other types of dangers occurring because of electricity.
We learnt how LPG can be used safely. Pressurised gas cylinders are widely used in all labs and many cylinders contain toxic or flammable gases. Proper precautions should be followed while handling and using these cylinders. The laboratory personnel should be aware of the colour code of the cylinders used which is specific for a particular gas. Knowledge of gas leak detection and handling and the emergency treatment in the event of an exposure is essential for every laboratory staff. Some simple procedures are made use of to detect the gas leakage like, use of ammonia for chlorine, lead acetate for hydrogen sulphide etc. The possible health hazards of different gases and the emergency treatment in case of an eventuality have been given in a tabular form. The use of goggles should be made as a precautionary measure in case of a possible implosion in evacuated glass apparatus.
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Q. Illustrate the basic working of Modem? Modem: Modems are generally provided by network operators or by vendors who aren't necessarily the manufacturers of computer systems.
what ''s part of dcmotor or dc generator
Q. A rotating electric machine with uniform air gap has a cylindrical rotor winding with inductance L 2 =1 H and a stator winding with inductance L 1 =3H. Themutual inductance va
The advantage of the analog storage oscilloscope is that it has higher bandwidth and writing speed than a digital oscilloscope, being capable of operating speeds of about 15 GHz. T
Ask question #Minimum 100 words acceptThere are various refrigeration systems employing various methods. State any seven (7) refrigeration systems, mention the method(s) employed t
Q. Draw and explain diode clipping circuit ? A diode clipping circuit can be used to limit the voltage swing of a signal. Clipper circuits are used to clip a portion of the w
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Power Distribution System The Distribution System contains: - Sub-transmission system in voltage ranges from 33 kV to 220 kV. The energy goes from power subs
find E*(s) for E(s)=1-e/s(s+1)
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