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

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

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

4. 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.

5. 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.

6. The energy of motion.

7. The distance between adjacent threads in a screw.

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

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

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

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

12. A back and forth movement.

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

14. 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.

15. Work= force x distance

16. The gear being turned buy the driver gear

17. A combo of several pulleys working together.

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

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

20. 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.

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

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

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

24. The results of the operation of any system.

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

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

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

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

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

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

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

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

33. 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.

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

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

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

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

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

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

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

41. Movement in a straight line.

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

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

44. Circular movement.

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

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

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

48. A push or pull on an object.

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

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