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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 results of the operation of any system.






2. Circular movement.






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






4. A machine used for raising or moving liquids.






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






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






7. The ability to do work.






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






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






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






11. 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.






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






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






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






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






16. 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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17. Measurement for work






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






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






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






21. A twisting force.






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






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






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






25. Work= force x distance






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






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






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






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






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






31. Movement in a straight line.






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






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






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






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






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






37. The distance between adjacent threads in a screw.






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






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






40. 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.






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






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






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






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






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






46. Stored energy






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






48. 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.






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






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