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






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






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






4. A triangle with no two sides of equal length






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






6. coefficient of superficial (area) expansion






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






8. Is seen in equations involving logarithms - it means that the formula is converting from one base system to another.






9. Potential energy (Ep)






10. 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






11. Protons have a mass number of...






12. 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?






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






14. 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...






15. H2SO4 is the chemical formula for...






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

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






18. A parallelogram with four equal sides






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






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






21. Micro organisms promote corrosion...






22. Force






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






24. Reflex angle






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






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






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






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






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






30. 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.






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






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






33. 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






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






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






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






37. Force - work done - power - mechanical efficiency






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






39. A quadrilateral with two parallel sides






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






41. PVn(super script n) = C






42. 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






43. The act or process of measuring






44. 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






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






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






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






48. Copper fails due to...






49. Obtuse angle






50. Area of a segment