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Test your basic knowledge |
Power Engineering
Start Test
Study First
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
10.8 m N of W
Scalene triangle
Complementary angles
4.4 m/s
2. Negative terminal of the rectifier must always be connected to the structure that is being protected
Cathodic protection system
Mass x acceleration (N)
Mass
Scalene triangle
3. Mechanical efficiency
Output power(W)/input power(W)
Isothermal
More than 90 degrees
Specific heat
4. The parts/fraction of steam that is dry is called dryness fraction - o expressed as a fraction - percentage or decimal
Adiabatic
Process flow drawing
dryness fraction
Mass x acceleration (N)
5. Copper fails due to...
Trapezoid
Chlorides
Octagon
Ammonia
6. Straight angle
Rhombus
The specific heat of the material
Celsius
Exactly 180 degrees
7. A parallelogram with adjacent sides of unequal lengths
ellipse
Rhomboid
Mass x acceleration (N)
70 MPa
8. 1. In a right angle triangle - the sine of an acute angle is equal to...
benefits of copper
Opposite side / hypotenuse
More than 90 degrees
0.89
9. 1. Info for sizing equipment 2.compare plant performance against design: flow rates - efficiencies - recovery efficiencies
4.4 m/s
Stray current corrosion
45 kN
Purpose of material balance
10. 1.not showing temperatures or pressures 2. piping ID numbers and sizing 3. all instrumentation 4. piping details
Details of P & IDs
polytropic
Coefficient of friction
Calorimetry
11. The most common thread used in North America on fasteners such as bolts - is the...
Unified National
Conditions required to produce sulphide corrosion cracking
Dividing the ultimate strength by the factor of safety
26.81 m/s
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
A Greek letter alpha linear
Dividing the ultimate strength by the factor of safety
Complementary angles
13. Malleable cast iron is produced by...
Heating and cooling white cast iron at a controlled rate
161
Divide the maximum load by the original cross - sectional area
Problem solving order
14. Any two angles whose sum is 90
Complementary angles
The specific heat of the material
A solution
57.48 mm
15. 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
polygon
Charles Law
That is supported at two ends
Rhombus
16. As the cosine decreases - the...
The equilibrant
Work
Value of the angle increases
hardness
17. Cosine rule
A
45 kN
Stroke
4.4 m/s
18. A 1 N weight has a kinetic energy of 1 J when its speed is...
General gas law
4.4 m/s
Continuity flow
Calorimetry
19. One is the trigonometric value of...
Mechanical flow diagrams
Be the same at any point in the process
To calculate power from an engine
A. sine of 90
20. A quadrilateral with no parallel sides
4.4 m/s
Trapezium
Ultimate stress/working stress
Specific heat
21. Is the required to change a unit mass from a gas to liquid or liquid to a gas
latent heat of evaporation (vaporation)
Value of the angle increases
Conditions required to produce sulphide corrosion cracking
2.3026
22. 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
0.0723
linear motion relationships
Under deposit corrosion - enhanced oxygen generation - contact of live organisms
Coefficient of friction
23. Pythagoras' Theorem
26.81 m/s
Complementary angles
A
White metal and bronze
24. The temperature of saturated steam vapor at 980 kPa is...
To calculate power from an engine
Increase
White
179.02
25. Is seen in equations involving logarithms - it means that the formula is converting from one base system to another.
2.3026
26.81 m/s
Octagon
Details of P & IDs
26. Sine Rule
A / SinA = b / SinB = c / SinC
179.02
Opposite side / hypotenuse
Celsius
27. PFDs
Cathodic protection system
Stroke
benefits of copper
Process flow drawing
28. Dangerous because a crack starts slowly and propagate slowly - exceed breaking strength and the metal fails suddenly - stress must be tensile can be produced by an external load or residual stress - condensed moisture and change in temperature
Stress corrosion cracking
A number with the necessary unit
Toughness
Details of P & IDs
29. Velocity ratio is...
Ideal mechanical advantage
Ultimate stress/working stress
8908 kJ
latent heat of evaporation (vaporation)
30. A parallelogram with four equal sides
The elastic limit of the material is not exceeded
More than 90 degrees
Rhombus
Ultimate stress/working stress
31. The moment of a force about a point is...
A twisting or turning effect
0.89
Problem solving order
110.6 kPa
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
Charles Law
Total heat required for change of state
Continuity flow
brinell hardness test
33. According to Hooke's Law - the stress in an elastic body is directly proportional to the strain if...
Continuity flow
0.89
The elastic limit of the material is not exceeded
brinell hardness test
34. The force that is equal in magnitude but opposite in direction to the resultant force is called
Composite material
Falling temperature
The equilibrant
velocity
35. Area of a segment
Ultimate stress/working stress
Greater than 180 degrees
A = 4/3h2 [(square root)d/h-0.608]
0.89
36. A scalar quantity is one which has only magnitude and can be fully described by...
Output power(W)/input power(W)
Adiabatic
The elastic limit of the material is not exceeded
A number with the necessary unit
37. A polygon with 6 sides A = 0.433s2 for equilateral triangle - therefore a hexagon A = 6 x 0.433s2 or A = 2.6s2
Calorimetry
A number with the necessary unit
hexagon
Trapezoid
38. Ability to withstand deformation above elastic limit under compression without failure
26.81 m/s
Malleability
Pm x A x L
8908 kJ
39. Being made of 2 or more substances creating unique characteristics and properties when combine
Stress corrosion cracking
displacement
effective pressure
Composite material
40. Whether a material will break under sudden impact or hard blow
Toughness
Stray current corrosion
Ideal mechanical advantage
Opposite side / hypotenuse
41. When classifying beams - the term simple beam refers to a beam
Cathodic protection system
That is supported at two ends
57.48 mm
Ideal mechanical advantage
42. Force(N) x distance(m) or W=Fd - unit of joules - 1KJ = 1000J = 1000Nm = 1KNm - 1MJ = 1000000J = 1000000NM = 1MNm
Conditions required to produce sulphide corrosion cracking
Composite material
Celsius
Work
43. Refers to the length of the actual path over which a body travels - not concerned with direction - magnitude only
Gamma - coefficient of superficial = 2x coefficient of linear expansion
Increase
distance
Power
44. Micro organisms promote corrosion...
Toughness
Dividing the ultimate strength by the factor of safety
Under deposit corrosion - enhanced oxygen generation - contact of live organisms
45 kN
45. coefficient of expansion
Tangent
As a ratio
Latent heat of evaporation
A Greek letter alpha linear
46. A pinch of salt is added to a glass of water. The result is...
basic oxygen process
A solution
hexagon
latent heat of evaporation (vaporation)
47. The most common scale in use is the...
Work
70 MPa
Increase
Celsius
48. When calculating the ultimate stress of a material - we should
hardness
Dividing the ultimate strength by the factor of safety
Divide the maximum load by the original cross - sectional area
A twisting or turning effect
49. A automobile travels at 60 miles per hour. Expressed in metres per second - this would be equivalent to...
More than 90 degrees
Areas of sectors (bounded by 2 radii and arc between them)
26.81 m/s
Chlorides
50. Energy can be...
As a ratio
Naperian (Natural) logarithms
Transformed to different forms
hexagon