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. A triangle with no two sides of equal length






2. A quadrilateral with two parallel sides






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






4. 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






5. Stainless fails due to...






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






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






8. Any two angles whose sum is 90






9. PFDs






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






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






12. 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






13. Work per power stroke (J)






14. Area of a segment






15. Acute angle






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






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






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






19. PVn(super script n) = C






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






21. 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






22. Copper fails due to...






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






24. One is the trigonometric value of...






25. Force






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






27. A straight line that joins 2 points or circumference






28. coefficient of expansion






29. 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






30. A quadrilateral with no parallel sides






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






32. The factor of safety is always expressed...






33. Energy can be...






34. Protons have a mass number of...






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






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






37. 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)






38. 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






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






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






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






42. A parallelogram with four equal sides






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






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






45. In the equation 0.004 + D = 0.0042 - the value of D is...






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






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






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






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






50. 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...