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






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






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






4. Work per power stroke (J)






5. PFDs






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






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






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


9. Protons have a mass number of...






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


11. Obtuse angle






12. The parts/fraction of steam that is dry is called dryness fraction - o expressed as a fraction - percentage or decimal






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






14. 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






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






16. Work per second






17. Work done(J)/time(second) - unit of watts - 1 watt = 1 joule/second






18. A closed plane figure bounded by straight sides






19. P & IDs






20. Factor of safety






21. One is the trigonometric value of...






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






23. Acute angle






24. Energy can be...






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






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






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






28. PVn(super script n) = C






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






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






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






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






33. A triangle with two equal sides






34. When calculating the ultimate stress of a material - we should






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






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






37. H2SO4 is the chemical formula for...






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






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






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






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






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






43. Micro organisms promote corrosion...






44. A straight line that joins 2 points or circumference






45. A parallelogram with adjacent sides of unequal lengths






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






47. 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






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






49. Safe working stress is determined by...






50. 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)