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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. Reflex angle






2. Work per power stroke (J)






3. Velocity ratio is...






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






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






6. 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






7. A straight line that joins 2 points or circumference






8. A closed plane figure bounded by straight sides






9. 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...






10. A parallelogram with adjacent sides of unequal lengths






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






12. Expansion of a gas is said to be adiabatic when expansion takes place at...






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






14. Micro organisms promote corrosion...






15. PFDs






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






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






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






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






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






21. Compounds classified as salts may have the following characteristics






22. Safe working stress is determined by...






23. Malleable cast iron is produced by...






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






25. The classes of fastening devices are...






26. Mechanical efficiency






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






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






29. Force - work done - power - mechanical efficiency






30. coefficient of expansion






31. The act or process of measuring






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






33. A quadrilateral with two parallel sides






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






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






36. 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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37. coefficient of superficial (area) expansion






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






39. A = arc length x radius / 2 - A = (pi/360) x pir2 - length of radii and angle between radii known






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






41. 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)






42. 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






43. Area of a segment






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






45. Protons have a mass number of...






46. Resistance to wear - abrasion and penetration






47. H2SO4 is the chemical formula for...






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






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






50. 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






Can you answer 50 questions in 15 minutes?



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