FCTC TEST PREP| 28 Questions| Verified Answers!

A belt and pulley system is characterized by - ANSWERStwo or more pulleys in common to a belt. What does a belt and pulley system allow for? - ANSWERSmechanical power, torque, and speed to be transmitted across axles How is mechanical advantage realized? - ANSWERSif the pulleys are different diameters what is a pulley? - ANSWERSa wheel on an axle or shaft that is designed to support movement and change of direction of a cable or belt along its circumference Why are pulleys used? - ANSWERSlift loads apply forces trasmit power What is usually the drive element of a pulley? - ANSWERSrope, cable, belt or chain that runs over the pulley inside the groove Pulleys are assembled to form what - ANSWERSa block and tackle in order to provide mechanical advantage to apply large forces rope and pulley systems (block and tackle) are characterized by what? - ANSWERSthe use of a single continuous rope to transmit a tension force around one or more pulleys to lift or move a load the rope may be a light line or a strong cable What is the mechanical advantage of a rope and pulley system if it does not dissipate or store energy? - ANSWERSthe number of parts of the rope that act on the load What is a lever? - ANSWERSa machine consisting of a beam or rigid rod pivoted at a fixed hinge or fulcrum How do levers work? - ANSWERSamplifies an input force to provide a greater output force, which is said to provide leverage what is the mechanical advantage of a lever? - ANSWERSthe ratio or the output force to the input force