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 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






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






3. Sine Rule






4. The classes of fastening devices are...






5. Mechanical efficiency






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






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






8. 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






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






10. 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






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






12. A straight line that joins 2 points or circumference






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






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






15. Stainless fails due to...






16. Kinetic energy (Ek)






17. 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






18. A quadrilateral with two parallel sides






19. coefficient of superficial (area) expansion






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






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






22. coefficient of volumetric expansion

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






24. Is the amount of heat/energy required to increase or decrease the temperature of any given substance's unit mass 1 degree Celsius






25. Potential energy (Ep)






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






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






28. A triangle with two equal sides






29. 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)






30. Malleable cast iron is produced by...






31. 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






32. 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






33. Micro organisms promote corrosion...






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






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






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






37. When the co- efficient of friction increases and the force between two surfaces remains constant - the friction force will






38. 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






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






40. PVn(super script n) = C






41. A triangle with no two sides of equal length






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






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






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






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






46. Reflex angle






47. Orthographic projection means...






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






49. Resistance to corrosion and oxidation at high temperatures - improves toughness - prevents brittleness at low temperatures - increases strength without affecting toughness - amounts range from 1-4% - high impact resistance at amounts as high as 36% -






50. Force