Test your basic knowledge |

Power 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. Any two angles whose sum is 90
Specific heat
A twisting or turning effect
Complementary angles
polygon

2. A triangle with two equal sides
water equivalent
dryness fraction
Isosceles triangle
A twisting or turning effect

3. 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
0.0002
One angle is exactly 90 degrees
Continuity flow
Isosceles triangle

4. Protons have a mass number of...
110.6 kPa
Output power(W)/input power(W)
One
Increase

5. Is seen in equations involving logarithms - it means that the formula is converting from one base system to another.
benefits of chromium - nickel and copper in alloy steels
Resultant
Scalene triangle
2.3026

6. Sine Rule
Purpose of material balance
0.89
A / SinA = b / SinB = c / SinC
A solution

7. Right angle
Hooke's Law
polygon
One angle is exactly 90 degrees
A number with the necessary unit

8. If 10 m3 of a gas at a pressure of 20 kPa (gauge) and a temperature of 10
Composite material
110.6 kPa
polytropic
That is supported at two ends

9. A 1 N weight has a kinetic energy of 1 J when its speed is...
Work
4.4 m/s
Total heat required for change of state
A

10. H2SO4 is the chemical formula for...
linear motion relationships
Sulfuric acid
Isosceles triangle
polytropic

11. The dryness fraction of steam at a pressure of 400 kPa and a heat content of 2500 kJ/kg is...
0.89
Ideal mechanical advantage
One
A Greek letter alpha linear

12. 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
Octagon
Falling temperature
Naperian (Natural) logarithms
Output power(W)/input power(W)

13. 1. In a right angle triangle - the sine of an acute angle is equal to...
Divide the maximum load by the original cross - sectional area
Opposite side / hypotenuse
45 kN
distance

14. Negative terminal of the rectifier must always be connected to the structure that is being protected
Cathodic protection system
The equilibrant
Ultimate stress/working stress
10.8 m N of W

15. PFDs
Isothermal
benefits of nickel
A / SinA = b / SinB = c / SinC
Process flow drawing

16. Potential energy (Ep)
distance
M x g x h (kg x 9.81 m/s/s x height (m))
One angle is exactly 90 degrees
520.72 kJ/kg

17. The act or process of measuring
Mensuration
Output power(W)/input power(W)
Calorimetry
Ultimate stress/working stress

18. Kinetic energy (Ek)
Total heat required for change of state
Falling temperature
1/2mv2 (kg x velocity(m/s))
Sulfuric acid

19. The factor of safety is always expressed...
Stroke
As a ratio
distance
110.6 kPa

20. Is the rate a body moves in a specific direction - direction must be specified - velocity(m/s) = displacement(m)/time(s)
Mechanical flow diagrams
Stress corrosion cracking
velocity
Opposite side / hypotenuse

21. A 10 m long steel pipe when heated to increase its temperature by 85
70 MPa
110.6 kPa
1 cm
Output power(W)/input power(W)

22. Acute angle
latent heat of evaporation (vaporation)
Gamma - coefficient of superficial = 2x coefficient of linear expansion
Less than 90 degrees
Mass x acceleration (N)

23. The term _____ is used as a measure of the quantity of matter.
Specific heat
Mass
Sulfuric acid
A / SinA = b / SinB = c / SinC

24. 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
benefits of chromium
elasticity
A / SinA = b / SinB = c / SinC
Specific heat

25. 1.not showing temperatures or pressures 2. piping ID numbers and sizing 3. all instrumentation 4. piping details
1 cm
Details of P & IDs
Gamma - coefficient of superficial = 2x coefficient of linear expansion
Rhombus

26. Area of a segment
Charles Law
Power
520.72 kJ/kg
A = 4/3h2 [(square root)d/h-0.608]

27. A straight line that joins 2 points or circumference
basic oxygen process
General gas law
White
Chord

28. As the cosine decreases - the...
Tangent
Specific heat
One
Value of the angle increases

29. A quadrilateral with no parallel sides
Trapezium
Under deposit corrosion - enhanced oxygen generation - contact of live organisms
Sulfuric acid
One angle is exactly 90 degrees

30. A polygon with 6 sides A = 0.433s2 for equilateral triangle - therefore a hexagon A = 6 x 0.433s2 or A = 2.6s2
1/2mv2 (kg x velocity(m/s))
hexagon
polygon
Chord

31. Copper fails due to...
dryness fraction
10.8 m N of W
Composite material
Ammonia

32. Resistance to corrosion - improved properties at high and low temperatures - lowers coefficient of expansion
Pm x A x L x N
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue
benefits of chromium - nickel and copper in alloy steels
Under deposit corrosion - enhanced oxygen generation - contact of live organisms

33. Expansion of a gas is said to be adiabatic when expansion takes place at...
Falling temperature
Isothermal
Pm x A x L
One

34. 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.
brinell hardness test
Rhomboid
4.4 m/s
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue

35. The moment of a force about a point is...
One angle is exactly 90 degrees
520.72 kJ/kg
polytropic
A twisting or turning effect

36. Straight angle
Adiabatic
26.81 m/s
Power
Exactly 180 degrees

37. The most common scale in use is the...
A = 4/3h2 [(square root)d/h-0.608]
Sulfuric acid
Celsius
Calorimetry

38. P & IDs
0.0723
Mechanical flow diagrams
Boyle's law
Relative density

39. coefficient of expansion
dryness fraction
Material balance
Chord
A Greek letter alpha linear

40. When calculating the ultimate stress of a material - we should
polytropic
A number with the necessary unit
Divide the maximum load by the original cross - sectional area
1 cm

41. The most common material used in making large industrial diesel engine pistons is...
Hooke's Law
57.48 mm
Cast iron
benefits of copper

42. Sensible heat + total latent heat - mc(specific heat) x delta t + mLf/mLe - Lf = latent heat of fusion - Le = latent heat of evaporation
Cathodic protection system
Total heat required for change of state
The equilibrant
To calculate power from an engine

43. 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
Charles Law
benefits of chromium - nickel and copper in alloy steels
Work
dryness fraction

44. 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
ellipse
Chord
Gamma - coefficient of superficial = 2x coefficient of linear expansion
A

45. Refers to the length of the actual path over which a body travels - not concerned with direction - magnitude only
0.0002
Pm x A x L
A
distance

46. coefficient of volumetric expansion

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

47. The classes of fastening devices are...
Rhomboid
A / SinA = b / SinB = c / SinC
Problem solving order
Permanent and removable

48. Force(N) x distance(m) or W=Fd - unit of joules - 1KJ = 1000J = 1000Nm = 1KNm - 1MJ = 1000000J = 1000000NM = 1MNm
Details of P & IDs
26.81 m/s
Work
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue

49. Work per power stroke (J)
Boyle's law
A / SinA = b / SinB = c / SinC
Toughness
Pm x A x L

50. Moist hydrogen sulphide environment - hydrogen sulphide must be present - water - even trace amount - high strength steel - steel must be under tensile stress - either applied or residual
As a ratio
0.89
Conditions required to produce sulphide corrosion cracking
dryness fraction