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

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

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

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

5. 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.

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

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

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

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

10. 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.

11. A way to measure stuff.

12. A back and forth movement.

13. The distance between adjacent threads in a screw.

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

15. Measurement for work

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

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

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

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

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

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

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

23. Acts on a certain area.

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

25. 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.

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

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

28. Work= force x distance

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

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

31. 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.

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

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

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

35. Circular movement.

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

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

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

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

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

41. A machine used for raising or moving liquids.

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

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

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

45. Stored energy

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

47. Movement in a straight line.

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

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

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