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. 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






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






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






4. 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?






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






6. A triangle with no two sides of equal length






7. Sine Rule






8. 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






9. A straight line that joins 2 points or circumference






10. Right angle






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






12. Ratio of the opposite to the adjacent side of a right- angled triangle






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






14. Work per power stroke (J)






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






16. 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% -






17. Reflex angle






18. Straight angle






19. Kinetic energy (Ek)






20. Work per second






21. Pm = mean effective pressure (Pa) - A= area of piston (m2) - L= length of stroke (m) - N= number of power strokes per second






22. Copper fails due to...






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






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






25. The working stress of a material that has an ultimate strength of 490 MPa and a safety factor of 7 would be...






26. Obtuse angle






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






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






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






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






31. The amount of stretch or compression of an elastic material is directly proportional to the applied force - stress = E (modulus of elasticity) x Strain

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






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






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






35. Compounds classified as salts may have the following characteristics






36. 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)






37. Pythagoras' Theorem






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






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






40. The act or process of measuring






41. 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.






42. Force






43. Factor of safety






44. One is the trigonometric value of...






45. Energy can be...






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






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






48. Potential energy (Ep)






49. 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






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