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






2. A parallelogram with adjacent sides of unequal lengths






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






4. 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






5. 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...






6. Use of the equation PV = a constant - means the numerical result of pressure times volume for a compression or expansion process will






7. Any two angles whose sum is 90






8. 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






9. Pythagoras' Theorem






10. 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






11. Change in tempereature where no heat in transferred - PV(supercript v) = C






12. Force - work done - power - mechanical efficiency






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

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14. Protons have a mass number of...






15. A quadrilateral with two parallel sides






16. coefficient of expansion






17. PFDs






18. 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






19. A 10 m long steel pipe when heated to increase its temperature by 85






20. Orthographic projection means...






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






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






23. A quadrilateral with no parallel sides






24. 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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25. For making steal is done in a pear shaped vessel that refines molten iron from a blast furnace and scrap into steel






26. As the cosine decreases - the...






27. Energy can be...






28. The classes of fastening devices are...






29. 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.






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






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






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






33. Pm = mean effective pressure (Pa) - A= area of piston (m2) - L= length of stroke (m) - N= number of power strokes per second






34. coefficient of volumetric expansion

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35. Straight angle






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






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






38. Sine Rule






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






40. 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% -






41. Velocity ratio is...






42. P & IDs






43. Micro organisms promote corrosion...






44. When classifying beams - the term simple beam refers to a beam






45. The precise measurement of heat flow out of a system for chemical and physical processes






46. Malleable cast iron is produced by...






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






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






49. 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






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







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Can you answer 50 questions in 15 minutes?


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