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






2. 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.






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






4. The distance between adjacent threads in a screw.






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






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






7. A twisting force.






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






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






10. A back and forth movement.






11. A combo of several pulleys working together.






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






13. Measurement for work






14. Movement in a straight line.






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






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






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






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






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






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






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






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






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






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






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






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






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






28. A machine used for raising or moving liquids.






29. Work= force x distance






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






31. The results of the operation of any system.






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






33. A push or pull on an object.






34. 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.






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






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






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






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






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






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






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






42. 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.






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






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






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






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






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






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






49. The gear being turned buy the driver gear






50. The ability to do work.