Q1 \what are the dangerous of electricity ?1- Electrical Shock.2- Psychological Damage 3- Neurological Damage4- Physical Burns5- Ventricular fibrillationQ2\ what do you know about electrocution?Electrocution or electric shock it's the third reason of causing death in USA Canada it's cause 12% of young worker deaths.Q3\What are the causes of electrical accidents ? 4 examples 1- Defective Equipments :open conduits defective switches- dirty motor windings- defective insulation

2- Unsafe Work Practic: Overloading circuits use metal ladder - using defective tools using ungrounded equipments

3- Leak Of Knowledge : (don't know the ..:)Correct installation of equipments safe use of electrical energy regular maintenance periodic inspection of equipmentsQ4 \ state any 8 precautions to be taken to avoid an electrical shock1- Don't put sharp edged tool in your pocket2- Don't use pliers as a hammer 3- Use correct rating of fuses4- Check proper working of safety devices5- Check the metallic parts are earthed6- Replace broken switch or plugs7- Never use damaged equipment8- Care in handling all electrical equipment .(the only effective safeguard against injuryQ5/ Describe the flow of current through human body?Current will bass through human body with the shortest path possible through human bodyQ6\ state the factors which affects the amount of current flowing through body.?1- Voltage Source2- Body Resistance3- Current Capacity of sourceQ7\state the factors which affects resistance of human body?1- Individual physiology2- Emotional state3- Moisture of skinQ8/ Describe the effects of electrical shock on human body It can cause death of seriously injury and burns like electrical burns arc burns and thermal burns at 1-4 ma surprise and at 4-15 ma painful shock at 15-20 very painful shock and can let go at 20-50 ma respiratory paralysis at 50-100 possible to death Ventricular Fibrillation and at 100-200 ma surly death heart stoppage 200- up ma severe burns Q9/ what is the probable shock effect of ?Q10\ what do you know about electrical fire and it's classification? Give examples Class A : Ashes like paper woods Class B : Barrell like flammable liquidsClass C : Circuits like electrical fires Q11\ what is the important of personal protective equipment in electrical safetySafety glasses : used to protect the eyes ( must be worn while work) Rubber Gloves : has 3 types a- Rubberized gloves : handling oily surfacesb- Acid resistant rubber gloves : handling Acid or caustic materialsc- Rubber gloves: used with energized circuitsRubber Mats : to Protect from the shock of ungrounded Tools and equipments (should be clean no holes no metals and dry)Leather Gloves : protection of hand (used also for protection for rubber gloves )Hard Hats : to protect the head while working ina- Near of moving objectsb- Under scaffoldingc- Industrial siteSafety Shoes : good one made of leather it used to protect the foot from injury (must be worn every where in work)Ear Plugs : protection the ear from high noisesQ13/ under which circumstances it is mandatory to wear hard hats ?1- Working in industrial site2- Working near to moving objects 3- Working under scaffolding.Q14/ list 8 situations of recognizing electrical hazards?1- Overloaded circuits2- Wire with bad insulation3- Defective ladder and scaffolding4- Using wrong equipment5- Using wrong PPE 6- Exposed electrical parts 7- When the equipment or location or worker is wet8- Some on site chemicals9- Equipment that not groundedQ15/state the factors on which severity of electric shock depend?1- Type of current2- Path of current through human body3- Duration of flow of current Q18 / UL: underwriters Laboratories NEC : National Electrical CodeOSHA : Occupational Safety and Health AdministrationEMT : Emergency Medical TechniciansEMS :Emergency Medical Services NESC : National Electrical Safety CodeCPR: Cardio Pulmonary Resuscitation