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






2. A quadrilateral with no parallel sides






3. A 1 N weight has a kinetic energy of 1 J when its speed is...






4. A parallelogram with adjacent sides of unequal lengths






5. Reflex angle






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






7. 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...






8. Cosine rule






9. Kinetic energy (Ek)






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






11. Right angle






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






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






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






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






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






17. PFDs






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






19. 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






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






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






22. Micro organisms promote corrosion...






23. Orthographic projection means...






24. PVn(super script n) = C






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






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






27. coefficient of volumetric expansion

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






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






30. Compounds classified as salts may have the following characteristics






31. P & IDs






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






33. Aka stray current electrolysis - caused be an external source of current - non intended paths due to poor electrical conductor






34. Malleable cast iron is produced by...






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






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






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






38. A parallelogram with four equal sides






39. A scalar quantity is one which has only magnitude and can be fully described by...






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






42. 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






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






44. The total direction traveled by the piston within a cylinder power stroke - if pressure is being applied during the stroke






45. A quadrilateral with two parallel sides






46. 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






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






48. Force - work done - power - mechanical efficiency






49. One is the trigonometric value of...






50. Safe working stress is determined by...