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. Copper fails due to...






2. Orthographic projection means...






3. 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






4. PVn(super script n) = C






5. Malleable cast iron is produced by...






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






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






9. 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






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






11. A body can be put into equilibrium by applying an additional force equal in magnitude but opposite in direction to the...






12. P & IDs






13. A straight line that joins 2 points or circumference






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






15. Sensible heat + total latent heat - mc(specific heat) x delta t + mLf/mLe - Lf = latent heat of fusion - Le = latent heat of evaporation






16. Any two angles whose sum is 90






17. Stainless fails due to...






18. A triangle with no two sides of equal length






19. coefficient of volumetric expansion

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






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






22. Is seen in equations involving logarithms - it means that the formula is converting from one base system to another.






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






24. Potential energy (Ep)






25. Velocity ratio is...






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






27. 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






28. Right angle






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






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






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






32. In a pipe if no fluid is added or removed - flow must remain constant - due to the product of area and velocity being constant - flow must be the same going in as coming out of pipe






33. Work per power stroke (J)






34. Quantity of heat required to change the temp of a unit mass of a substance by 1 degree






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






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






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






38. Compounds classified as salts may have the following characteristics






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






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






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

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42. 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...






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






44. Protons have a mass number of...






45. A closed plane figure bounded by straight sides






46. As the cosine decreases - the...






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






48. Kinetic energy (Ek)






49. Negative terminal of the rectifier must always be connected to the structure that is being protected






50. A parallelogram with four equal sides