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. The act or process of measuring






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






3. A polygon with 6 sides A = 0.433s2 for equilateral triangle - therefore a hexagon A = 6 x 0.433s2 or A = 2.6s2






4. The force that is equal in magnitude but opposite in direction to the resultant force is called






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






6. The classes of fastening devices are...






7. The term _____ is used as a measure of the quantity of matter.






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

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9. Right angle






10. Velocity ratio is...






11. The dryness fraction of steam at a pressure of 400 kPa and a heat content of 2500 kJ/kg is...






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






13. 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% -






14. Moist hydrogen sulphide environment - hydrogen sulphide must be present - water - even trace amount - high strength steel - steel must be under tensile stress - either applied or residual






15. Malleable cast iron is produced by...






16. Is a number that appears naturally in some higher- level mathematics is 2.71828 (correct to 5 decimal places)






17. Steam engines - steam turbines - gas turbines and internal combustion engines are examples of...






18. A closed plane figure bounded by straight sides






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






20. The working stress of a material that has an ultimate strength of 490 MPa and a safety factor of 7 would be...






21. Of a process or change taking place at constant temperature - PV = C






22. Resists oxidation - high strength at high temperatures - increases hardness and abrasion resistance without increasing brittleness - increases response to heat treatment - increases depth of hardness penetration - at 12% chromium steel with not tarni






23. One is the trigonometric value of...






24. Is the amount of heat/energy required to increase or decrease the temperature of any given substance's unit mass 1 degree Celsius






25. A quadrilateral with no parallel sides






26. The heat required to raise the temperature of water at a pressure of 225 kPa from 0






27. Force(N) x distance(m) or W=Fd - unit of joules - 1KJ = 1000J = 1000Nm = 1KNm - 1MJ = 1000000J = 1000000NM = 1MNm






28. As the cosine decreases - the...






29. The moment of a force about a point is...






30. Force






31. H2SO4 is the chemical formula for...






32. Four pieces of iron are heated in a furnace to high temperatures. The one at the highest temperature would appear






33. A parallelogram with four equal sides






34. Pre- construction - shows graphically the mechanical design engineer's work - during construction - proper location - reference to all equipment - after construction - training reference anddetails of process - utility and electrical systems






35. Refers to change in the position of the body - relative to some reference point - not concerned with actual distance traveled - a vector quantity with magnitude and direction






36. The factor of safety is always expressed...






37. The most common scale in use is the...






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






39. Energy can be...






40. The amount of stretch or compression of an elastic material is directly proportional to the applied force - stress = E (modulus of elasticity) x Strain

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41. Quantity of heat required to change the temp of a unit mass of a substance by 1 degree






42. 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






43. 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






44. Steam turbine bearings are usually made of...






45. Straight angle






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






47. Micro organisms promote corrosion...






48. A pinch of salt is added to a glass of water. The result is...






49. Orthographic projection means...






50. A = arc length x radius / 2 - A = (pi/360) x pir2 - length of radii and angle between radii known