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






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






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






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






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






6. Liquid or gas






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






8. The perpendicular distance from the pivot point to the point of application of the force (d) - M=Fd -Clockwise=Negative moment -Counterclockwise=Positive moment






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






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






11. Four Stroke Engine -Used in hotter areas because more efficient -Higher compression ratio than gasoline






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






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






14. A pull on an object






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






16. Length x Width






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

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


18. Exhaust






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






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






21. When fluid is at rest






22. Pistons connected to crankshaft -1 stroke up - 1 stroke down of the piston -1 rotation of the piston -Problems: high emissions - noisy - inefficient - high vibrations - unburnt fuel - burnt oil -Benefits: small and light -Being phased out in USA - i.






23. Mass x acceleration






24. 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






25. 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 (






26. Often a free body has _______ acting on it






27. Force without machine/Force with machine






28. Weight/Time






29. Length / Time






30. (Force)(Distance)/Seconds






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






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






33. Dimensions and units






34. A combination of components






35. 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


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






37. Incompressible (volume doesnt change) Transmit force evenly - Lubricates - Trap contaminants - Some based on vegetable oils - Biodegradable - Aircraft fluids noncombustible (thins as temperature rises)






38. ...






39. 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






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






42. A flat - two dimensional property -Units of length multiplied by length describe area -A=length x width






43. Intake of fuel and air mix






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






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






46. One that pushes on an object






47. Combustion ignited by spark plug and materials are compressed






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






49. Rotation may occur






50. The magnitude of something in a particular direction