Test your basic knowledge |

Mechanical Systems

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. Unit of measurement for pressure






2. The production of large quantities of a standardized article (often using assembly line techniques)






3. Are used to overcome the frictional force of the machine






4. Bigger gear






5. The ratio of the output to the input of any system - a comparison of the useful work provided by a machine or a system with - the work supplied to the machine or system






6. F/A






7. Reason that machines are never 100% efficient






8. A rigid bar or plank that can rotate around a fixed point






9. Work done by machine / work done to make the machine operate x100






10. The fluid transfers the pressure from the input piston to the ____________






11. A fixed point






12. Work unit






13. Heated water to make steam and then used to move a piston. When the piston moved - it caused an attached rod (which was connected to a crankshaft) to move as well - making the engine work.






14. Is the work done by the machine






15. Heated water to make steam and then used to move a piston in a circular motion






16. Energy of motion






17. Within a machine are groups of parts that perform specific functions - such as braking or steering






18. Used to control the flow of a fluid. It is a moveable part that controls the flow by opening or closing






19. Stored energy






20. Several simple machines all working together in a system






21. Is the work needed to use - or operate the machine






22. The comparison of the force produced by a machine to the force applied to the machine. (the size of the load vs the size of the force needed to move the load)






23. Consists of a wire - rope - or cable moving on a grooved wheel. One or more combinations of wheels and ropes can be fixed in place or moveable - help you lift larger loads.






24. Distance between the fulcrum and the effort force






25. Required a large shift in population from rural areas to the cities.






26. Used to apply force to the fluid - which creates pressure in the fluid






27. Do the work faster






28. Hydraulic system in your body






29. The relationship between the speed of rotations of a smaller gear and a larger gear - can be calculated by dividing the number of driver gear teeth by the number of follower gear teeth.






30. To increase the force on the output piston - the input piston must move through a greater distance






31. 1st class - 2nd class - 3rd class






32. Do the work easier






33. The combustion occurs inside the engine. The pistons goes through 4 steps: Intake stroke (taking in the fuel) - compression stroke (compressing the fuel- air mixture) - power stroke (the fuel- air mixture is ignited) - exhaust stroke (waste products






34. Energy is transferred from one place to another - and no energy is changed or converted.






35. Distance between the fulcrum and the load






36. Force of the small piston/area of the small piston = Force of the large piston/Area of the large piston






37. Consists of a small cylinder that has a crank or handle. The axle of the winch acts like the fulcrum - the handle is the effort arm






38. A combination of two wheels of different diameters that turn together - a lever that rotates in a circle around a center point or fulcrum.






39. Pneumatic system in your body






40. Force exerted on the lever to make it move






41. Pressure applied to an enclosed fluid is transmitted undiminished in all directions throughout the fluid and perpendicular to the walls of the container.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


42. Use the force of a liquid in a confined space - apply two essential characteristic of fluids - their incompressibility and their ability to transmit pressure






43. Mass of the object lifted by the lever






44. A very complex combination of pulleys - including fixed and movable is called






45. Act like levers






46. Or ramp - makes it easier to move a load higher than it is - but - it has to be moved over a much longer distance.






47. (driven gear) smaller gear






48. A small gear driving a larger gear increases torque and reduces speed in the driven gear






49. Load Force (FL)/Effort Force (FE)






50. Is done when a force acts on an object to make that object move - a transfer of energy