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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. Circular movement.






2. A back and forth movement.






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






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






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






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






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






8. 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.






9. Movement in a straight line.






10. A twisting force.






11. A combo of several pulleys working together.






12. Stored energy






13. The results of the operation of any system.






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






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






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






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






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






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






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






21. The ability to do work.






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






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






24. A way to measure stuff.






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






26. The distance between adjacent threads in a screw.






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






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






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






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






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






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






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






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






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






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






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






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






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






41. Acts on a certain area.






42. 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.






43. The energy of motion.






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






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






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






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






48. A machine used for raising or moving liquids.






49. 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.






50. 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.