Proper Use of Extension Cords and Lock-out/Tag-out System Quiz
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Questions and Answers

What is the formula for Power in relation to Voltage and Current?

  • Power = Current - Voltage
  • Power = Current / Voltage
  • Power = Voltage / Current
  • Power = Voltage x Current (correct)

    • What is the characteristic of Alternating Current (AC)?

  • It flows in one direction only
  • It is a type of high voltage
  • It reverses its direction of flow periodically (correct)
  • It is a type of low voltage

    • What is the purpose of an Insulator in an Electric Circuit?

  • To conduct electricity efficiently
  • To reduce the resistance in a circuit
  • To increase the voltage in a circuit
  • To prevent current from taking unwanted paths (correct)

    • What is the range of resistance of the human body with dry skin?

    <p>100,000 to 800,000 ohms</p> Signup and view all the answers

    What type of voltage is 660 volts or more?

    <p>High Voltage</p> Signup and view all the answers

    What is the name of the electric current that flows in one direction only?

    <p>Direct Current</p> Signup and view all the answers

    What is the minimum current that a human being can feel as an electric shock?

    <p>1.8 mA</p> Signup and view all the answers

    What is the main factor that affects the resistance of the skin?

    <p>Moisture content of the skin</p> Signup and view all the answers

    What is the approximate inner resistance of a human body?

    <p>500 to 1000 ohms</p> Signup and view all the answers

    At what current does a human being experience a painful shock?

    <p>3 mA</p> Signup and view all the answers

    What is the current at which a human being can still move, but may cause a secondary accident?

    <p>5 mA to 16 mA</p> Signup and view all the answers

    What is the approximate current that can cause death in a few minutes if it passes through the body for a few seconds?

    <p>100 mA</p> Signup and view all the answers

    What is the minimum current required to produce a slight tingling sensation in the human body?

    <p>1.8 ma</p> Signup and view all the answers

    What is the primary reason for increased risk of electric shock in damp locations?

    <p>People are excellent conductors of electricity</p> Signup and view all the answers

    What is the maximum current that can cause a safe 'let-go' current, but may also cause secondary accidents?

    <p>5-16 ma</p> Signup and view all the answers

    What type of injury results from accidents caused by an electrical shock?

    <p>Secondary injury</p> Signup and view all the answers

    What is the minimum current that can cause certain ventricular fibrillation, which can be fatal?

    <p>100 ma</p> Signup and view all the answers

    What is the main purpose of a Lock-out/Tag-out system?

    <p>To control hazardous energy sources during machine maintenance</p> Signup and view all the answers

    What is the recommended frequency of inspecting and testing fixed electrical installations?

    <p>Periodically, depending on the type of equipment, usage, and environment</p> Signup and view all the answers

    What is the purpose of a lockout device in a Lock-out/Tag-out system?

    <p>To prevent energizing of equipment during maintenance</p> Signup and view all the answers

    What is the main benefit of carrying out preventative maintenance on electrical equipment?

    <p>To prevent danger from electrical equipment</p> Signup and view all the answers

    What is the purpose of a tag out device in a Lock-out/Tag-out system?

    <p>To warn employees of potential hazards</p> Signup and view all the answers

    What is the importance of using the correct wire gauge and cord length for extension cords?

    <p>To prevent overheating and electrical shock</p> Signup and view all the answers

    What is the primary function of the housing in an electrical device?

    <p>To prevent electrical shock to the operator in case of a malfunction</p> Signup and view all the answers

    What should you do if you sense the presence of an electrical hazard or exposed conductors?

    <p>Keep your distance and stay away</p> Signup and view all the answers

    What is an example of improper circuit protection?

    <p>Using improper circuit protection or fuses</p> Signup and view all the answers

    What should you do immediately in case of an electrical accident?

    <p>Turn off the electrical power source</p> Signup and view all the answers

    What is an example of a hazardous wiring connection?

    <p>An overloaded connection</p> Signup and view all the answers

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