Test your basic knowledge |

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. Static - Dynamic






2. When the fluid is in motion






3. Psi - newtons - pascals






4. 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

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


5. Varies by location (on earth) - distance (from earth) - and mass (of planet)






6. Friction changes KE to heat energy- Heat is transferred to air- Front brakes work harder than rear- Some brakes use asbestos- Newer cars have dual braking systems - Don't drive through water or your brakes won't work well (ride breaks to dry them out






7. A system adopted from an old British system of units in the 13th century -Engineering system -Units: length- foot (ft) - time- second (s) - force-(lbs) - Mass is a derived unit called a slug -Political/Economic choice -Awkward






8. If a force causes rotations -Vector- Machines can have more than one torque-Units: foot- pound and newton - meter - i.e. engines - airplanes - propeller






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






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






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






12. Fuel is injected and combusts due to temperature of compressed air






13. 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






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






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






16. Describes how applied forces bring a body into motion






17. The branch of science and engineering involving measurement






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






19. Compression-Tension-Shear






20. (Force)(Distance)/Seconds






21. Combustion of fuel mixture ignited by spark plug






22. Body in motion (car)






23. Allows comparison between different measuring systems and units - Necessary to market internationally






24. Work/force or vertical distance/sloping distance






25. Rotation may occur






26. Often a free body has _______ acting on it






27. The magnitude of something in a particular direction






28. 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






29. Every object continues in motion in a straight line unless acted upon by some force -Every object at rest continues at rest unless acted upon by a force -So forces cause a change in an object's state of motion

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


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






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






32. 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






33. Air is drawn in






34. Three- dimensional property measured in units of length times length times length =length x width x height






35. Liquid or gas






36. External Combustion engine -Only used in factories and plants (not used in cars)






37. Length / Time






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






39. Can be applied:-By direct contact: push - pull - twist -At a distance: gravity - magnetism Can change: speed - direction - shape - units of force






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






41. Weight/Time






42. Applied at an angle or parallel to a surface






43. 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)






44. When fluid is at rest






45. Force/Area






46. Exhaust of combustion products






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






48. A fluid power system uses hydraulics and a fluid under pressure to create a greater force than is applied






49. Length x Width






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