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






2. A quadrilateral with no parallel sides






3. Orthographic projection means...






4. Sine Rule






5. A straight line that joins 2 points or circumference






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






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






8. coefficient of expansion






9. H2SO4 is the chemical formula for...






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






11. Resistance to wear - abrasion and penetration






12. Acute angle






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






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






15. A quadrilateral with two parallel sides






16. coefficient of superficial (area) expansion






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






18. The act or process of measuring






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






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






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






22. Protons have a mass number of...






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






24. When classifying beams - the term simple beam refers to a beam






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






26. Right angle






27. 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)






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

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






30. Potential energy (Ep)






31. Work per second






32. A = arc length x radius / 2 - A = (pi/360) x pir2 - length of radii and angle between radii known






33. P & IDs






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






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






36. Velocity ratio is...






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






38. The force that is equal in magnitude but opposite in direction to the resultant force is called






39. Work per power stroke (J)






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






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






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






43. coefficient of volumetric expansion

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






45. 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% -






46. Malleable cast iron is produced by...






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






48. 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






49. Steam turbine bearings are usually made of...






50. 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