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Mechanical Systems 2

Subject : engineering
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 secondary or subordinate system that is part if a larger system.

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

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

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

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

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

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

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

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

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

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. Acts on a certain area.

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

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

15. A combo of several pulleys working together.

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

17. The gear being turned buy the driver gear

18. Circular movement.

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

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

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

22. 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.

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

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

25. The results of the operation of any system.

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

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

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

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

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

31. A back and forth movement.

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

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

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

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

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

37. 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.

38. The ability to do work.

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

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

41. Movement in a straight line.

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

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

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

45. Stored energy

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

47. Work= force x distance

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

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

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