Test your basic knowledge |

Power 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. Combines easily with many other elements - improves atmospheric corrosion resistance - increases strength - amounts of 0.15-0.25%






2. The ratio of the density of a substance to the density of a standard substance at the same temperature and pressure - the ratio of the density of the substance to the density of the substance to the density of water






3. A parallelogram with four equal sides






4. A displacement of 9 m north of point A - and another of 6 m west of point A can be added to give a resultant displacement from point A of...






5. The amount of heat required to completely melt 25 kg of ice from a temperature of -10






6. The most common material used in making large industrial diesel engine pistons is...






7. Resistance to wear - abrasion and penetration






8. A 6 m long cantilever beam carries a concentrated load of 45 kN at its free end. What is the shear force at the wall?






9. When the co- efficient of friction increases and the force between two surfaces remains constant - the friction force will






10. Mechanical efficiency






11. In a pipe if no fluid is added or removed - flow must remain constant - due to the product of area and velocity being constant - flow must be the same going in as coming out of pipe






12. The ability to return to its original shape after an external force has been removed






13. Cosine rule






14. Work per power stroke (J)






15. Resistance to corrosion and oxidation at high temperatures - improves toughness - prevents brittleness at low temperatures - increases strength without affecting toughness - amounts range from 1-4% - high impact resistance at amounts as high as 36% -






16. Factor of safety






17. If a right- angle triangle has an angle of 28O 37' and the hypotenuse is 120 mm - the length of the opposite side is...






18. Velocity ratio is...






19. A closed plane figure bounded by straight sides






20. When calculating the ultimate stress of a material - we should






21. The most common thread used in North America on fasteners such as bolts - is the...






22. Sine Rule






23. Work per second






24. Stainless fails due to...






25. According to Hooke's Law - the stress in an elastic body is directly proportional to the strain if...






26. Means that the sum of the matter leaving the plant equals the sum of the matter entering






27. Whether a material will break under sudden impact or hard blow






28. A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it A = piab or A = pi(1/2D)(1/2d) - same as = (pi/4)D/d






29. P & IDs






30. One is the trigonometric value of...






31. Is the heat being added or removed to/from a substance without a change of state - still having a changing in temp






32. Any two angles whose sum is 90






33. Reflex angle






34. The pressure that should be used when calculating power - pressure is not constant throughout a power stroke - decreases as gas/steam expands






35. Negative terminal of the rectifier must always be connected to the structure that is being protected






36. The relationship between the pressure and volume of a gas at constant temperture; when volume increase - pressure decreases.

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37. Refers to the length of the actual path over which a body travels - not concerned with direction - magnitude only






38. Ability to withstand deformation above elastic limit under compression without failure






39. coefficient of expansion






40. 1.not showing temperatures or pressures 2. piping ID numbers and sizing 3. all instrumentation 4. piping details






41. Testing metals and nonmetals of low to medium hardness. uses a ball that is pressed into material and basis calculations on the diameters of ball and indentation.






42. A automobile travels at 60 miles per hour. Expressed in metres per second - this would be equivalent to...






43. Is seen in equations involving logarithms - it means that the formula is converting from one base system to another.






44. Is the rate a body moves in a specific direction - direction must be specified - velocity(m/s) = displacement(m)/time(s)






45. A gas occupies 8.62 m3 at 1800 kPa and 26






46. u = initial velocity (m/s) - v = final velocity (m/s) - t = time (s) - s = distance (m) - a = acceleration (m/s/s) - g = acceleration due to gravity (m/s/s)






47. PVn(super script n) = C






48. PFDs






49. The ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface u = tan(thada) - coefficient of friction is equal to the tangent of friction angle






50. Force