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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. One is the trigonometric value of...






2. Any two angles whose sum is 90






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






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






5. Right angle






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






7. Work per power stroke (J)






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






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






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






11. A body having a gravitational force of 2000 N - is pulled along a horizontal surface at constant speed by a rope that makes an angle of 20






12. 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...






13. Stainless fails due to...






14. Ratio of the opposite to the adjacent side of a right- angled triangle






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






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






17. 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?






18. Potential energy (Ep)






19. A triangle with two equal sides






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






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






22. 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






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






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






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






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

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






28. Sensible heat + total latent heat - mc(specific heat) x delta t + mLf/mLe - Lf = latent heat of fusion - Le = latent heat of evaporation






29. A straight line that joins 2 points or circumference






30. Compounds classified as salts may have the following characteristics






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






32. 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






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






34. Protons have a mass number of...






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






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






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






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






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






40. Work per second






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






42. Acute angle






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






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






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






46. A quadrilateral with two parallel sides






47. Obtuse angle






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






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






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






Can you answer 50 questions in 15 minutes?



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