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. 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






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






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






4. One is the trigonometric value of...






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






6. 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






7. coefficient of superficial (area) expansion






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






9. 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






10. 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?






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






12. Potential energy (Ep)






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






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






15. Work per second






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






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






18. Kinetic energy (Ek)






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






20. 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% -






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






22. Force






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






24. The parts/fraction of steam that is dry is called dryness fraction - o expressed as a fraction - percentage or decimal






25. 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






26. Any two angles whose sum is 90






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






28. 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






29. Copper fails due to...






30. Straight angle






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






32. 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






33. coefficient of volumetric expansion

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

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






36. 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






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






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






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






40. Steam turbine bearings are usually made of...






41. Energy can be...






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






43. Area of a segment






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






45. H2SO4 is the chemical formula for...






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






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






48. Sine Rule






49. Testing metals and nonmetals of low to medium hardness. uses a ball that is pressed into material and basis calculations on the diameters of ball and indentation.






50. Protons have a mass number of...