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






2. Micro organisms promote corrosion...






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






4. A polygon with 6 sides A = 0.433s2 for equilateral triangle - therefore a hexagon A = 6 x 0.433s2 or A = 2.6s2






5. Sine Rule






6. 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...






7. Any two angles whose sum is 90






8. Safe working stress is determined by...






9. As the cosine decreases - the...






10. One is the trigonometric value of...






11. The rate at which heat flow through a slab of a material does not depend on...






12. Reflex angle






13. The most common material used in making large industrial diesel engine pistons is...






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






15. Compounds classified as salts may have the following characteristics






16. In the equation 0.004 + D = 0.0042 - the value of D is...






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






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






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






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






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






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






23. Malleable cast iron is produced by...






24. 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






25. 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






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






27. 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?






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






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






30. Force






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






32. Protons have a mass number of...






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






34. 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






35. Orthographic projection means...






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






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






38. Factor of safety






39. The act or process of measuring






40. The total direction traveled by the piston within a cylinder power stroke - if pressure is being applied during the stroke






41. 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






42. The classes of fastening devices are...






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






44. Obtuse angle






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






46. Resistance to wear - abrasion and penetration






47. A triangle with no two sides of equal length






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

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49. A parallelogram with adjacent sides of unequal lengths






50. Mechanical efficiency