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






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






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






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






5. 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






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






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






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






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






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






11. A closed plane figure bounded by straight sides






12. Potential energy (Ep)






13. Whether a material will break under sudden impact or hard blow






14. 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






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






16. Dangerous because a crack starts slowly and propagate slowly - exceed breaking strength and the metal fails suddenly - stress must be tensile can be produced by an external load or residual stress - condensed moisture and change in temperature






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






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






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






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






21. Work per second






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






23. Straight angle






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






25. Mechanical efficiency






26. Force(N) x distance(m) or W=Fd - unit of joules - 1KJ = 1000J = 1000Nm = 1KNm - 1MJ = 1000000J = 1000000NM = 1MNm






27. A 10 m long steel pipe when heated to increase its temperature by 85






28. Obtuse angle






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






30. 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






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






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






33. Micro organisms promote corrosion...






34. 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






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






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






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






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






39. 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...






40. Compounds classified as salts may have the following characteristics






41. Acute angle






42. Orthographic projection means...






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






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






45. 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






46. 1. In a right angle triangle - the sine of an acute angle is equal to...






47. Malleable cast iron is produced by...






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






49. 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






50. A triangle with no two sides of equal length