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






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






3. Malleable cast iron is produced by...






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


5. Obtuse angle






6. As the cosine decreases - the...






7. A triangle with no two sides of equal length






8. 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






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






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






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






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






13. Protons have a mass number of...






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






15. When heat is supplied to a liquid in sufficient quantity to change the liquid to a vapour without changing the temperature - the heat supplied is known as...






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






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






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






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






20. Compounds classified as salts may have the following characteristics






21. A quadrilateral with two parallel sides






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






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






24. Acute angle






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






26. Energy can be...






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






28. Factor of safety






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






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






31. Sine Rule






32. 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)






33. Reflex angle






34. Right angle






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






36. Any two angles whose sum is 90






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






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






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






40. One is the trigonometric value of...






41. Work per power stroke (J)






42. A parallelogram with four equal sides






43. Pythagoras' Theorem






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






45. Ability to withstand deformation above elastic limit under compression without failure






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






47. Stainless fails due to...






48. 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






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






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