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Questions and Answers
What characterizes a voluntary-opening mechanism?
What characterizes a voluntary-opening mechanism?
- It is typically the lightest type of grasp device.
- It operates similarly to a battery-powered device.
- It remains open by default and closes with a pull.
- It is held closed at rest and opens when the control cable is pulled. (correct)
Which statement about voluntary-closing mechanisms is true?
Which statement about voluntary-closing mechanisms is true?
- They require continuous power to function.
- They usually tend to be heavier and less durable than their counterparts. (correct)
- They are designed to be held open at rest.
- They are generally lighter than voluntary-opening mechanisms.
Which of the following features distinguishes voluntary-opening mechanisms from voluntary-closing ones?
Which of the following features distinguishes voluntary-opening mechanisms from voluntary-closing ones?
- Voluntary-opening mechanisms open through a cable pull. (correct)
- Voluntary-opening mechanisms can operate underwater.
- Voluntary-opening mechanisms are actuated by battery power.
- Voluntary-opening mechanisms are typically heavier.
In comparison to voluntary-closing mechanisms, voluntary-opening mechanisms are generally:
In comparison to voluntary-closing mechanisms, voluntary-opening mechanisms are generally:
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Which of the following statements correctly contrasts both types of mechanisms?
Which of the following statements correctly contrasts both types of mechanisms?
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Study Notes
Active or Prehensors
- Active grasp mechanisms can exhibit two distinct operational types based on how they function: voluntary-opening and voluntary-closing.
Voluntary-Opening
- Typically remains in a closed position at rest due to a spring or rubber band mechanism.
- Activation occurs when a control cable is pulled, resulting in the device opening.
Voluntary-Closing
- Functions oppositely, operating by closing when activated.
- Generally heavier and less durable compared to voluntary-opening mechanisms.
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