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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. 1. In a right angle triangle - the sine of an acute angle is equal to...






2. 1. Info for sizing equipment 2.compare plant performance against design: flow rates - efficiencies - recovery efficiencies






3. 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?






4. If 10 m3 of a gas at a pressure of 20 kPa (gauge) and a temperature of 10






5. A parallelogram with four equal sides






6. The law that states that for a fixed amount of gas at a constant pressure - the volume of the gas increases as the temperature of the gas increases and the volume of the gas decreases as the temperature of the gas decreases






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






8. Area of a segment






9. The temperature of saturated steam vapor at 980 kPa is...






10. 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...






11. Copper fails due to...






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






13. Force - work done - power - mechanical efficiency






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






15. Cosine rule






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






17. Being made of 2 or more substances creating unique characteristics and properties when combine






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






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






20. A quadrilateral with no parallel sides






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






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






23. 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






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






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






26. In the equation 0.004 + D = 0.0042 - the value of D is...






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






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






29. Sine Rule






30. When heat is supplied to a liquid in sufficient quantity to change the liquid to a vapour without changing the temperature - the heat supplied is known as...






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






32. coefficient of superficial (area) expansion






33. Acute angle






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

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35. Resistance to wear - abrasion and penetration






36. A straight line that joins 2 points or circumference






37. All sides equal - all angles are equal and opposite sides parallel - divided into 6 ISOSCELES triangles - each angle in an octagon is 135 - A = 4.83s2






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






39. Expansion of a gas is said to be adiabatic when expansion takes place at...






40. Is 'the equivalent mass of water that would require the same amount of heat transfer as the substance - to produce the same temp. change






41. 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






42. Work per second






43. Straight angle






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






45. The parts/fraction of steam that is dry is called dryness fraction - o expressed as a fraction - percentage or decimal






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






47. 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.






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






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






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







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