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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. Length x Width






2. Combustion ignited by spark plug and materials are compressed






3. Force without machine/Force with machine






4. 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






5. Tells us how fast work is done - varies with time (more power is needed to do work in less time - and less power is needed to do work in more time) =Fd/s -Units: USA: ft- lb/s SI: watts (J/S)






6. 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






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






8. Often a free body has _______ acting on it






9. Body in motion (car)






10. Are independent of other dimensions - They are limited in number - length - mass - time - temperature - force






11. Air is drawn in






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






13. Length / Time






14. What we are not studying






15. Rotation may occur






16. Work/force or vertical distance/sloping distance






17. Can be reduced by decreasing the weight or force or increasing the area i.e. airbag






18. Mass x acceleration






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






20. Piston travels up and exhaust valve opens. Combustion by product exhaustion






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






22. Intake of fuel and air mix






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






24. Combine two or more power sources - locomotives - buses (diesel- electric) -Submarines (Nuclear- electric) -Components:gas engine - fuel tank - electric motor - generator - batteries - transmission -2 motors: Internal Combustion Engine and Electric E






25. A pull on an object






26. A^2+b^2=c^2 - used to calculate vectors






27. Combustion of fuel mixture ignited by spark plug






28. Static - Dynamic






29. Exhaust






30. When the moving fluid is a gas






31. Psi - newtons - pascals






32. A^2+b^2=c^2






33. The branch of science and engineering involving measurement






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






35. Exhaust of combustion products






36. A movement around a central pivot point (rotational movement) -Units: revolutions per second (rps) and revolutions per minute (rpm)






37. Applied at an angle or parallel to a surface






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






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






40. When two parallel forces equal in magnitude and opposite direction - i.e. steering wheel - turn a know - turn on and off a faucet






41. (Force)(Distance)/Seconds






42. Force x Distance






43. 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






44. Weight/Time






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






46. Ignition - power stroke






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






48. Rotation will not occur - but translation might occur






49. Translation (slide) -Rotate -Slide and Rotate Together






50. A flat - sloping surface -The only simple machine that does not move -The force is applied to the ramp - since this is the direction the load weight is moved -Sloping side is longer than vertical side -Less force is required to accomplish the same am







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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