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 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






3. coefficient of expansion






4. A 1 N weight has a kinetic energy of 1 J when its speed is...






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






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






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






8. Is a number that appears naturally in some higher- level mathematics is 2.71828 (correct to 5 decimal places)






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






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






11. Right angle






12. 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% -






13. Orthographic projection means...






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






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






16. Safe working stress is determined by...






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






18. A quadrilateral with no parallel sides






19. Mechanical efficiency






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






21. Work per power stroke (J)






22. Straight angle






23. Velocity ratio is...






24. A straight line that joins 2 points or circumference






25. 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?






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






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






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






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






30. PVn(super script n) = C






31. The act or process of measuring






32. Work per second






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






34. Copper fails due to...






35. Energy can be...






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






37. 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






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






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






40. 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)






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

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42. P & IDs






43. Sensible heat + total latent heat - mc(specific heat) x delta t + mLf/mLe - Lf = latent heat of fusion - Le = latent heat of evaporation






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






45. Sine Rule






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






47. 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






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






49. Area of a segment






50. 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...