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






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






3. The ability to do work.






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






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






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






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






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






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






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






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






12. The distance between adjacent threads in a screw.






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






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






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






16. The results of the operation of any system.






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






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






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






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






21. Work= force x distance






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






23. Acts on a certain area.






24. The gear being turned buy the driver gear






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






26. Measurement for work






27. 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.






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






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






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






31. A combo of several pulleys working together.






32. A back and forth movement.






33. The energy of motion.






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






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






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






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






38. 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.






39. A push or pull on an object.






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






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






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






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






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






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






46. A twisting force.






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






48. A way to measure stuff.






49. 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.






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