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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 ability to do work.






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






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






4. Stored energy






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






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






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






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






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






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






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






12. 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.






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






14. One of a pair of gears used to connect two shafts whose axes intersect.






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






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






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






18. 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.






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






20. 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.






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






22. 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.


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






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






25. The gear being turned buy the driver gear






26. A machine used for raising or moving liquids.






27. A twisting force.






28. Acts on a certain area.






29. Work= force x distance






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






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






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






33. 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.






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






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






36. Measurement for work






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






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






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






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






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






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






43. A combo of several pulleys working together.






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






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






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






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






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






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






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