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. coefficient of superficial (area) expansion






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






3. 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






4. One is the trigonometric value of...






5. A triangle with no two sides of equal length






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






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






8. Copper fails due to...






9. Kinetic energy (Ek)






10. A closed plane figure bounded by straight sides






11. Force






12. The dryness fraction of steam at a pressure of 400 kPa and a heat content of 2500 kJ/kg is...






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






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






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






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






17. Force - work done - power - mechanical efficiency






18. 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






19. Refers to the length of the actual path over which a body travels - not concerned with direction - magnitude only






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






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






22. Combines easily with many other elements - improves atmospheric corrosion resistance - increases strength - amounts of 0.15-0.25%






23. Energy can be...






24. Stainless fails due to...






25. A quadrilateral with two parallel sides






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






27. Cosine rule






28. Safe working stress is determined by...






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






30. The classes of fastening devices are...






31. Pythagoras' Theorem






32. A parallelogram with four equal sides






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






34. Right angle






35. Orthographic projection means...






36. PVn(super script n) = C






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






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






39. 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






40. Reflex angle






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






42. Obtuse angle






43. A quadrilateral with no parallel sides






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






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


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






47. A body can be put into equilibrium by applying an additional force equal in magnitude but opposite in direction to the...






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






49. Work per power stroke (J)






50. Factor of safety