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






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






3. The act or process of measuring






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

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5. Mechanical efficiency






6. u = initial velocity (m/s) - v = final velocity (m/s) - t = time (s) - s = distance (m) - a = acceleration (m/s/s) - g = acceleration due to gravity (m/s/s)






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






8. H2SO4 is the chemical formula for...






9. Stainless fails due to...






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






11. 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






12. Area of a segment






13. PFDs






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






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






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






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






18. Potential energy (Ep)






19. A quadrilateral with no parallel sides






20. Quantity of heat required to change the temp of a unit mass of a substance by 1 degree






21. Steam engines - steam turbines - gas turbines and internal combustion engines are examples of...






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






23. Acute angle






24. Any two angles whose sum is 90






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






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






27. coefficient of volumetric expansion

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28. A triangle with no two sides of equal length






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






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






31. Work per power stroke (J)






32. A triangle with two equal sides






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






34. coefficient of superficial (area) expansion






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






36. 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






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






38. Is the required to change a unit mass from a gas to liquid or liquid to a gas






39. Velocity ratio is...






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






41. Straight angle






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






43. P & IDs






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






45. Force






46. Reflex angle






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






48. Energy can be...






49. 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






50. 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.







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