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






2. 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.






3. The energy of motion.






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






5. The results of the operation of any system.






6. A twisting force.






7. Movement in a straight line.






8. A combo of several pulleys working together.






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






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






11. Measurement for work






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






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






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






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






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






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






18. Stored energy






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






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






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






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






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






24. A back and forth movement.






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






26. 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.






27. A machine used for raising or moving liquids.






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






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






30. The gear being turned buy the driver gear






31. The distance between adjacent threads in a screw.






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






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






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






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






36. 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.






37. 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.

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






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






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






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






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






43. Circular movement.






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






45. 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.






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






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






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






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






50. The ability to do work.