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Mechanical Systems 2

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A machine consisting of a small cylinder - a crank or handle - on a cable. Winch can be used to lift or pull things






2. A combination of fixed and movable pulleys - may be used to list very heavy or awkward loads.






3. Acts on a certain area.






4. A common workplace disorder causing numbness and pain in the thumb and first three finger.






5. The gear which transmits power and motion to the rest of the system. The input gear.






6. A wheel with a grooved rim to guide a rope or chain that runs along the groove; used to transmit or change direction of force.






7. The transmission of power between shafts by means of a belt connecting pulleys on the shafts.






8. The that has a handle because of a motoe or person turning it.






9. A threaded shaft used to convert rotary movement to linear movement.






10. A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts.






11. A small cogwheel that engages or is engaged by a larger cogwheel.






12. A machine consisting of two turning objects attached to each other at thier centers. One object to turn






13. The distance between adjacent threads in a screw.






14. The realtioship between the speed of rotation of a smaller gear and a larger gear = number of driven gear teeth / Number of following gear teeth.






15. Measurement for work






16. Stored energy






17. A gear between the driver and the driven gear used to change rotational direction.






18. A machine used for raising or moving liquids.






19. A pivot pin near the outside edge of a wheel or disk that changes reciprocating motion into rotary motion.






20. A rotating gear that meshes with a bar that has gear teeth along its length. Changes rotating motion into linear motion.






21. A lever in which the fulcrum is between the effort and load.






22. The ratio of the useful work or energy provided by a machine or system with the actual work or energy supplied to the machine or system.






23. The force acting perpendicular to a certain surface area.






24. The work done by a machine as the output force acts through the output distance






25. A mechanical system that uses a liquid under pressure in a close system to raise heavy objects.






26. A twisting force.






27. The ratio of the force produced by a machine or system (the load) to the force applied to the machine or system.






28. A joint that allows connected shafts to spin freely while permitting a change in direction.






29. The science of designing gone or work environments that best suit the human body in it various dimensions.






30. The work done on a machine as the input force acts through the input distance






31. Energy is transferred from one plan to another - and no energy is changed or converted.






32. The gear being turned buy the driver gear






33. A rotating wheel- like device with teeth around the rim.






34. A pear- shaped disk with an off- center pivot point - used to change rotating motion into reciprocating motion.






35. A swing back and forth at a regular rate.






36. Circular movement.






37. Something put into a system - such as resources - in order to achieve a result.






38. A system in which a gas - such as air - transmits a force exerted on gas in an enclosed space.






39. Work= force x distance






40. A device used to regulate the flow of a liquid in a hydraulic system.






41. The point of the lever that does not move.






42. The weight of an object that is is moved or lifted by a machine - or resistance to movement that a machine must overcome






43. A secondary or subordinate system that is part if a larger system.






44. A back and forth movement.






45. A law stating that when pressuer is exerted on on part of a fluid - the same pressure is transmitted unchanged to all parts of the fluid - no matter what the shape of the container holding fluid. EX: water balloon.

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46. A lever in which the effort is applied between the fulcrum and the load.






47. A gear with teeth that fits into the links of a chain.






48. A system having a boundary that separates it from it surroundings.






49. A way to measure stuff.






50. The application of force that moves an object a certain distance.