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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. Area of a segment






2. 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






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






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






5. Force - work done - power - mechanical efficiency






6. Stainless fails due to...






7. Copper fails due to...






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






9. 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






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






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






12. The pressure that should be used when calculating power - pressure is not constant throughout a power stroke - decreases as gas/steam expands






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






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






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






16. Right angle






17. 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






18. Orthographic projection means...






19. A automobile travels at 60 miles per hour. Expressed in metres per second - this would be equivalent to...






20. Pre- construction - shows graphically the mechanical design engineer's work - during construction - proper location - reference to all equipment - after construction - training reference anddetails of process - utility and electrical systems






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






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






23. One is the trigonometric value of...






24. When heat is supplied to a liquid in sufficient quantity to change the liquid to a vapour without changing the temperature - the heat supplied is known as...






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






26. Micro organisms promote corrosion...






27. The classes of fastening devices are...






28. A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it A = piab or A = pi(1/2D)(1/2d) - same as = (pi/4)D/d






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






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






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






32. 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






33. P & IDs






34. 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






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






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






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






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

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39. Work per second






40. As the cosine decreases - the...






41. Resistance to wear - abrasion and penetration






42. A straight line that joins 2 points or circumference






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






44. Work per power stroke (J)






45. Force






46. 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






47. Kinetic energy (Ek)






48. A quadrilateral with no parallel sides






49. PFDs






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







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Can you answer 50 questions in 15 minutes?


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