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






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






3. Circular movement.






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






5. The part of a machine which contains two or more pieces arranged so that the motion of one compels the motion of the others.






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






7. The energy of motion.






8. Work= force x distance






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






10. A machine used for raising or moving liquids.






11. Measurement for work






12. The distance between adjacent threads in a screw.






13. A machine consisting of a small cylinder - a crank or handle - on a cable. Winch can be used to lift or pull things






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






15. A machine consisting of a bar that is free to rotate around a fixed point - changing the amount of force that must be exerted to move an object.






16. Acts on a certain area.






17. The member of a pair of gears to which motion and power are transmitted by the other. The output gear.






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






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






20. A pulley supported by attachment to something that does not move - such as a ceiling - wall - or tree.






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






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






23. A mechanical arrangement consisting of a toothed wheel driven by a short revolving cylinder bearing a screw thread.






24. 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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25. Opposite in position - direction - order or effect.






26. A combo of several pulleys working together.






27. A way to measure stuff.






28. 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.






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






30. A twisting force.






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






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






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






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






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






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






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






38. The results of the operation of any system.






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






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






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






42. The distance in a strait line from the center of a circle to the circle circumference






43. 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.






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






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






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






47. The gear being turned buy the driver gear






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






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






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