Static Electricity

What is static electricity?

• A type of electricity generated by batteries
  

• The result of an imbalance between negative and positive charges in an object
  

• Electricity generated by conductors
  

• Electricity that flows through metals

Which of the following particles is negatively charged in an atom?

• Proton
  

• Neutron
  

• Electron

• Neuron

Which of the following is an example of charging by friction?

• Rubbing a glass rod with silk
  

• Connecting a charged object to a neutral object
  

• Bringing a charged object close to a neutral object without touching

• None of the above

What are the three mechanisms for generating electric charges?

• Charging by friction, contact, and induction
  

• Charging by induction, conduction, and resistance
  

• Charging by contact, conduction, and electrostatics
  

• Charging by friction, conduction, and polarization

What is a potential hazard caused by electrostatic charges?

• Increased conductivity
  
  

• Fire and explosion hazards during handling of flammable liquids

• Lack of current flow in metal objects
  

• Reduced efficiency of electrical equipment

Which of the following measures can help overcome electrostatic hazards?

• Ignoring potential sparks in flammable areas
  

• Bonding metal objects to eliminate spark discharges
  

• Using only insulators in hazardous areas
  

• Encouraging electrostatic charges in tank

Which of the following is an example of charging by induction?

• Rubbing a balloon on your hair
  

• Touching a charged object to a neutral object
  

• Bringing a charged object close to a neutral object without touching
  

• Connecting a battery to a metal wire

Which of the following is an example of charging by conduction?

• Rubbing a balloon on your hair
  

• Touching a charged object to a neutral object
  

• Bringing a charged object close to a neutral object without touching
  

• Connecting a battery to a metal wire

In the case of handling flammable liquids, which of the following stages could lead to electrostatic ignition?

• Heat generation
  

• Charge separation, accumulation, and electrostatic discharge
  

• Friction between objects
  

• Increase in temperature

What is one way to reduce the risk of electrostatic discharge during tanker operations?

• Increasing the voltage in the electrical system
  

• Removing loose conductive objects from hazardous areas
  

• Using non-conductive materials for all equipment
  

• Preventing any movement of fluids