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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 twisting force.






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






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






4. 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.






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






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






7. A combo of several pulleys working together.






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






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






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






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






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






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






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






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






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






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






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






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






20. The distance between adjacent threads in a screw.






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






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






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






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






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






26. 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.


27. Circular movement.






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






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






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






31. A way to measure stuff.






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






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






34. Work= force x distance






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






36. 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.






37. Measurement for work






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






39. The energy of motion.






40. A machine used for raising or moving liquids.






41. The ability to do work.






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






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






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






45. The results of the operation of any system.






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






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






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






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






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