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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. Malleable cast iron is produced by...






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






3. A triangle with no two sides of equal length






4. Any two angles whose sum is 90






5. 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






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






7. Factor of safety






8. Force - work done - power - mechanical efficiency






9. A quadrilateral with two parallel sides






10. A closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it A = piab or A = pi(1/2D)(1/2d) - same as = (pi/4)D/d






11. A scalar quantity is one which has only magnitude and can be fully described by...






12. 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






13. Sine Rule






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

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






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






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






18. Straight angle






19. 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% -






20. Cosine rule






21. coefficient of volumetric expansion

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






23. The classes of fastening devices are...






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






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






26. Force






27. A closed plane figure bounded by straight sides






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






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

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






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






32. A triangle with two equal sides






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






34. As the cosine decreases - the...






35. Velocity ratio is...






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






37. 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






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






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






40. Work per power stroke (J)






41. H2SO4 is the chemical formula for...






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






43. A parallelogram with adjacent sides of unequal lengths






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






45. Right angle






46. One is the trigonometric value of...






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






48. 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






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






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







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