Safety Engineering Lecture 8: Mechanical Hazards and Machine Safeguarding
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Questions and Answers

Which type of hazard is associated with power-driven machines, whether automated or manually operated?

  • Mechanical hazards (correct)
  • Electrical hazards
  • Biological hazards
  • Chemical hazards
  • What type of injury results from torn ligaments in a joint?

  • Sprain (correct)
  • Cut
  • Shearing injury
  • Strain
  • In industrial settings, which type of machine is widely used for severing paper, metal, plastic, elastomers & composites?

  • Cutting machine
  • Stamping machine
  • Drilling machine
  • Shearing machine (correct)
  • What is the main cause of crushing injuries?

    <p>Body parts getting caught between hard surfaces</p> Signup and view all the answers

    What type of injury occurs when a body part comes in contact with a sharp edge?

    <p>Cut</p> Signup and view all the answers

    Why is it important to provide proper machine guards and enforce their use in industrial settings?

    <p>To prevent costly injuries and accidents</p> Signup and view all the answers

    Which type of fracture leaves the affected bone in one piece but cracked?

    <p>Incomplete fracture</p> Signup and view all the answers

    What is the greatest hazard of puncturing injuries?

    <p>Potential for damage to internal organs</p> Signup and view all the answers

    According to the National Safety Council, what is the main purpose of machine safeguarding?

    <p>To prevent human contact with harmful machine parts</p> Signup and view all the answers

    What is a key requirement for all safeguards according to the National Safety Council?

    <p>Create no new hazard</p> Signup and view all the answers

    What type of injuries can strains and sprains cause?

    <p>Intense pain and bruising</p> Signup and view all the answers

    What is the common result of a cut injury?

    <p>Damage to veins and arteries</p> Signup and view all the answers

    Which action can lead to amputated fingers and hands when using power-driven shears?

    <p>Activating the blade before removing the hand</p> Signup and view all the answers

    Why is failure to provide proper machine guards and enforce their use costly for companies?

    <p>It results in higher insurance premiums</p> Signup and view all the answers

    What types of machines are widely used for severing paper, metal, plastic, elastomers, and composites in industrial settings?

    <p>Power-driven shears</p> Signup and view all the answers

    What is a characteristic of a compound fracture?

    <p>It divides the affected bone into two or more separate pieces</p> Signup and view all the answers

    Which type of machine hazard exists when two hard surfaces, at least one of them moving, push close enough together to crush objects between them?

    <p>Squeeze-point hazards</p> Signup and view all the answers

    What is the primary purpose of machine safeguarding according to the National Safety Council?

    <p>To minimize the risk of accidents of machine-operator contact</p> Signup and view all the answers

    Which type of injury occurs when an object penetrates straight into the body and pulls straight out, creating a wound in the shape of the object?

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

    According to NSC requirements for safeguards, what should safeguards be durable enough to withstand?

    <p>The rigors of the workplace</p> Signup and view all the answers

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