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






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






3. One is the trigonometric value of...






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






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






6. Force






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






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






9. A scalar quantity is one which has only magnitude and can be fully described by...






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






11. PFDs






12. Stainless fails due to...






13. 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






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






15. Copper fails due to...






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






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






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






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






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






21. 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






22. 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






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






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






25. Malleable cast iron is produced by...






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






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






28. A parallelogram with four equal sides






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






30. P & IDs






31. The classes of fastening devices are...






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






33. Obtuse angle






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






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






36. Work per second






37. 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?






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






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






40. Work per power stroke (J)






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






43. The most common scale in use is the...






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






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






46. A pinch of salt is added to a glass of water. The result is...






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






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






49. Work done(J)/time(second) - unit of watts - 1 watt = 1 joule/second






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