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. Force - work done - power - mechanical efficiency






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






3. Acute angle






4. Any two angles whose sum is 90






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






6. Right angle






7. Obtuse angle






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






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






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






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






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






13. Work per power stroke (J)






14. A triangle with no two sides of equal length






15. A triangle with two equal sides






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






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






18. Is the required to change a unit mass from a gas to liquid or liquid to a gas






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






21. Straight angle






22. coefficient of superficial (area) expansion






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






24. A parallelogram with adjacent sides of unequal lengths






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






26. When the co- efficient of friction increases and the force between two surfaces remains constant - the friction force will






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






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






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






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






31. A body having a gravitational force of 2000 N - is pulled along a horizontal surface at constant speed by a rope that makes an angle of 20






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






33. coefficient of expansion






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






35. As the cosine decreases - the...






36. 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






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






38. The classes of fastening devices are...






39. Stainless fails due to...






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






41. A quadrilateral with no parallel sides






42. Four pieces of iron are heated in a furnace to high temperatures. The one at the highest temperature would appear






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






44. Mechanical efficiency






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. 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






47. Testing metals and nonmetals of low to medium hardness. uses a ball that is pressed into material and basis calculations on the diameters of ball and indentation.






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. Factor of safety






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