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. Psi - newtons - pascals






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






3. One that pushes on an object






4. Applied at an angle or parallel to a surface






5. Static - Dynamic






6. Force/Area






7. Energy may enter or leave. Mass can enter or leave the system i.e. open water bottle - molecule - hydraulic cylinder - human






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






9. Exhaust






10. 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






11. 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


12. The magnitude of something in a particular direction






13. 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


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






15. Weight/Time






16. If the force needed to operate the machine (input force) is less than the force being opposed or the load being moved (output force) -The ratio of the output force divided by the input force -If the number is greater than one - there is a mechanical






17. Can be applied at a time on an object






18. Old technology- harder to service-Still used on big trucks and trailers because they are too expensive to convert






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






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






21. ...






22. Movement along a line (reciprocal or linear motion) -Units: feet and meters






23. Compression of fuel mix






24. A pull on an object






25. Describes how applied forces bring a body into motion






26. Dimensions and units






27. Liquid or gas






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






29. The branch of science and engineering involving measurement






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






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

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


32. Ignition - power stroke






33. Intake of fuel and air mix






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






35. The designing of machines that contribute to society and our quality of life - Mechanical engineers apply the principles of mathematics - chemistry - and physics to solve real- world problems






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






37. When fluid is at rest






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






39. When the work done by the effort just equals the work done by the load - ______ of the machine will occur






40. 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






41. In a right triangle - the sum of the squares of the sides equals the square of the hypotenous






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






43. Compression-Tension-Shear






44. 1. Magnitude: size - a numberi.e. 50 mph 2. Direction: angle i.e. N -E -W -S






45. Piston travels down and intake valve is opened. Intake of fuel and air into chamber






46. Combustion of fuel mixture ignited by spark plug






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






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






49. Used to measure or quantify -US Common: Absolute and Gravitational -SI: absolute






50. 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