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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. 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.






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






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






4. A twisting force.






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






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






7. Acts on a certain area.






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






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






10. Circular movement.






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






12. 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.






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






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. The ratio of the speed of the driving member of a gear train to that of the driven member.






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






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






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






19. 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.






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






21. A combination of two or more gears used to transmit motion between two rotating shafts or between a shaft and a slide.






22. Opposite in position - direction - order or effect.






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






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






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






27. Movement in a straight line.






28. The results of the operation of any system.






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






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






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






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






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






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






35. A combo of several pulleys working together.






36. The distance between adjacent threads in a screw.






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






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






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






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






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






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






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






44. The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.






45. The gear being turned buy the driver gear






46. The ability to do work.






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






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






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






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






Can you answer 50 questions in 15 minutes?



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