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. A gas occupies 8.62 m3 at 1800 kPa and 26






2. Potential energy (Ep)






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






4. Resistance to corrosion - improved properties at high and low temperatures - lowers coefficient of expansion






5. 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% -






6. A parallelogram with adjacent sides of unequal lengths






7. P & IDs






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






9. A quadrilateral with no parallel sides






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






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






13. 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






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






15. A body can be put into equilibrium by applying an additional force equal in magnitude but opposite in direction to the...






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






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






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






19. 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






20. coefficient of expansion






21. A closed plane figure bounded by straight sides






22. Energy can be...






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






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






25. The classes of fastening devices are...






26. A parallelogram with four equal sides






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






28. A triangle with two equal sides






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






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

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31. PV=nRT - Boyle's law and Charle's law combined






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






33. Area of a segment






34. The act or process of measuring






35. Cosine rule






36. PVn(super script n) = C






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






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






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






40. Malleable cast iron is produced by...






41. Micro organisms promote corrosion...






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






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






44. The rate at which heat flow through a slab of a material does not depend on...






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






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






47. 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






48. Safe working stress is determined by...






49. A triangle with no two sides of equal length






50. Force