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

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

4. Circular movement.

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

6. 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.

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

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

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

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

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

12. 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.

13. A machine used for raising or moving liquids.

14. A back and forth movement.

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

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

17. The results of the operation of any system.

18. The distance between adjacent threads in a screw.

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

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

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

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

23. The ability to do work.

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

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

26. Acts on a certain area.

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

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

29. The gear being turned buy the driver gear

30. A combo of several pulleys working together.

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

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

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

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

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

36. Movement in a straight line.

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

38. 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.

39. 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.

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

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

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

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

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

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

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

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

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

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

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