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






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






3. A combo of several pulleys working together.






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






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






6. Acts on a certain area.






7. The results of the operation of any system.






8. The gear being turned buy the driver gear






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






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






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






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






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






14. 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.






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






16. The distance between adjacent threads in a screw.






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






18. 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.






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






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






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






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






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






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






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






26. A machine consisting of a small cylinder - a crank or handle - on a cable. Winch can be used to lift or pull things






27. Circular movement.






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






29. The ability to do work.






30. Movement in a straight line.






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






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






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






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






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






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






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






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






39. A push or pull on an object.






40. The energy of motion.






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






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






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






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






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






47. 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.






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






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






50. 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.