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






2. 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...






3. One is the trigonometric value of...






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






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






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






7. 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.






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






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






10. 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






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






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






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






14. Copper fails due to...






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

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16. A triangle with no two sides of equal length






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






18. coefficient of expansion






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






20. 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






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






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






23. Area of a segment






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






25. The precise measurement of heat flow out of a system for chemical and physical processes






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






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






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






29. 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






30. Stainless fails due to...






31. Safe working stress is determined by...






32. A straight line that joins 2 points or circumference






33. Energy can be...






34. A closed plane figure bounded by straight sides






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






36. A parallelogram with adjacent sides of unequal lengths






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






39. The ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface u = tan(thada) - coefficient of friction is equal to the tangent of friction angle






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






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






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






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






44. Is 'the equivalent mass of water that would require the same amount of heat transfer as the substance - to produce the same temp. change






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






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






47. 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






48. The classes of fastening devices are...






49. Work per power stroke (J)






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