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Mechanical Engineering

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. Brake pedal and linkage - Master Cylinder - Wheel cylinders (4) - Hydraulic lines - Hydraulic fluid - Mechanical advantage is provided by the foot pedal to the booster (level) - A greater force is applied on the wheel cylinders than on the brake peda






2. (pi) x (radius)^2






3. A change in velocity over time -Unites: USA- ft/s^2 and SI: m/s^2






4. Body at rest or is in equilibrium (wall)






5. When a simple machine increases a force it is at the expense of a ____ in the distance the load is moved






6. Weight/Time






7. When the fluid is in motion






8. When the sum of all forces and the sum of all moments both equal forces - No movement






9. Length x Width x Height






10. An application of Pascal's Principle (trading distance and force while doing the same amount of work) -Gives a mechanical advantage -The muscles of machines - used to produce very large forces - use a fluid under pressure (gas is low pressure and liq






11. Energy may enter or leave. No mass enters or leaves the system i.e. Closed water bottle - car engine - human






12. A quantity that has both magnitude and direction when placed within a coordinate system -Forces and Velocity i.e. driving 50 miles to the northeast






13. A pull on an object






14. Result of gravity acting on mass -The greater the mass - the greater the weight -Is a force -Units: lbs - N






15. ...






16. Force without machine/Force with machine






17. Mass x acceleration






18. Two stroke- Four Stroke- Diesel-Rotary -Hybrid






19. Force and mass are proportional to each other (F=ma) -If F increases - so does acceleration -Force causes acceleration - More force means more acceleration - same mass - More mass means less acceleration - same force


20. Piston travels up and both plugs are closed






21. Describes how applied forces bring a body into motion






22. Compression of fuel mix






23. For every action there is an equal and opposite reaction -Force -F=mg -Earth exerts a force on all of us


24. Force x Distance






25. Can be applied at a time on an object






26. Air is compressed - work is done on the system






27. One that pushes on an object






28. ICE generates electricity for electric battery -Electric motor turns wheels






29. Rotation may occur






30. Liquid or gas






31. When the work done by the effort exceeds the work done by the load - the load...






32. Both engines drive wheels -ICE used for cruising -Electric motor assists with low speed for acceleration and hill climbing






33. Describes a physical property of anything - What we are measuring






34. When the moving fluid is a gas






35. Exhaust of combustion products






36. A small piece that makes up a larger whole. Each component is there for a specific job - but the sum of components






37. Describes how applied forces bring a body into rest or equilibrium






38. Causes acceleration -Units: USA: 32.2 ft/s^2 SI: 9.8 m/sec^2






39. The force simple machines use to do work on a single load or against a single force






40. The standard system of units that uses base 10 and used in the rest of the world. US does not use - but Great Britain does - Base Units: mass - kilograms (kg) - length- meters (m) - and time-Seconds (S) - Force is a derived unit measured in newtons (






41. The amount of atoms and molecules in something - Matter is energy that has become solid -An object gains mass when it gains more energy and vice a versa -Units: SI- kgs and USA: Slugs - lbs






42. What we are studying






43. In a hydraulic with an incompressible fluid - the total pressure at any point in the system is the same - liquid


44. Same pressure - work - volume - Different forces and distances






45. Psi - newtons - pascals






46. Intake of fuel and air mixture - compression of mixture by piston






47. Body in motion (car)






48. Mass can neither by created nor destroyed - only transformed






49. Used in cars -2 rotations of crankshaft -4 strokes (down - up - down - up) of piston - i.e. cars - trucks - planes - buses - motorcycles - submarine -1% of gas actually moves people






50. The magnitude of something in a particular direction