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

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


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






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






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






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. The classes of fastening devices are...






7. The pressure that should be used when calculating power - pressure is not constant throughout a power stroke - decreases as gas/steam expands






8. Pythagoras' Theorem






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






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. Is 'the equivalent mass of water that would require the same amount of heat transfer as the substance - to produce the same temp. change






12. A quadrilateral with no parallel sides






13. Acute angle






14. Energy can be...






15. Malleable cast iron is produced by...






16. Copper fails due to...






17. 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






18. A triangle with two equal sides






19. A straight line that joins 2 points or circumference






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






21. A parallelogram with adjacent sides of unequal lengths






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






23. 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...






24. Kinetic energy (Ek)






25. Right angle






26. Potential energy (Ep)






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






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






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






30. Micro organisms promote corrosion...






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






32. Protons have a mass number of...






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






34. Work per second






35. One is the trigonometric value of...






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






37. 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...






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






39. Mechanical efficiency






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






41. 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






42. Force - work done - power - mechanical efficiency






43. The act or process of measuring






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






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






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






47. 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


48. Work per power stroke (J)






49. Resists oxidation - high strength at high temperatures - increases hardness and abrasion resistance without increasing brittleness - increases response to heat treatment - increases depth of hardness penetration - at 12% chromium steel with not tarni






50. A quadrilateral with two parallel sides