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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. coefficient of superficial (area) expansion
benefits of chromium
A twisting or turning effect
Continuity flow
Gamma - coefficient of superficial = 2x coefficient of linear expansion
2. Kinetic energy (Ek)
70 MPa
1/2mv2 (kg x velocity(m/s))
Increase
General gas law
3. Use of the equation PV = a constant - means the numerical result of pressure times volume for a compression or expansion process will
Be the same at any point in the process
Opposite side / hypotenuse
Calorimetry
Celsius
4. Potential energy (Ep)
Scalene triangle
Mensuration
Trapezoid
M x g x h (kg x 9.81 m/s/s x height (m))
5. 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
White metal and bronze
Falling temperature
Specific heat
Charles Law
6. 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
Rhombus
velocity
A. sine of 90
Octagon
7. Work per second
Pm x A x L x N
A
Coefficient of cubical expansion is often used instead of 'volume' - coefficient of liquids only
benefits of chromium - nickel and copper in alloy steels
8. Velocity ratio is...
Malleability
Trapezoid
Coefficient of cubical expansion is often used instead of 'volume' - coefficient of liquids only
Ideal mechanical advantage
9. A automobile travels at 60 miles per hour. Expressed in metres per second - this would be equivalent to...
26.81 m/s
Stress corrosion cracking
Sulfuric acid
Celsius
10. The factor of safety is always expressed...
Calorimetry
White metal and bronze
Composite material
As a ratio
11. When classifying beams - the term simple beam refers to a beam
displacement
Relative density
View of a cutting plane
That is supported at two ends
12. Is seen in equations involving logarithms - it means that the formula is converting from one base system to another.
Cathodic protection system
Naperian (Natural) logarithms
2.3026
hardness
13. Force - work done - power - mechanical efficiency
Pm x A x L
Charles Law
1/2mv2 (kg x velocity(m/s))
Problem solving order
14. Aka stray current electrolysis - caused be an external source of current - non intended paths due to poor electrical conductor
More than 90 degrees
A / SinA = b / SinB = c / SinC
Stray current corrosion
Mass x acceleration (N)
15. The most common thread used in North America on fasteners such as bolts - is the...
Unified National
520.72 kJ/kg
161
Mass
16. Being made of 2 or more substances creating unique characteristics and properties when combine
110.6 kPa
Dividing the ultimate strength by the factor of safety
polytropic
Composite material
17. A scalar quantity is one which has only magnitude and can be fully described by...
A number with the necessary unit
Coefficient of cubical expansion is often used instead of 'volume' - coefficient of liquids only
Under deposit corrosion - enhanced oxygen generation - contact of live organisms
polygon
18. Protons have a mass number of...
One
Celsius
Stress corrosion cracking
Specific heat
19. The most common scale in use is the...
70 MPa
benefits of copper
Mass x acceleration (N)
Celsius
20. The relationship between the pressure and volume of a gas at constant temperture; when volume increase - pressure decreases.
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21. For making steal is done in a pear shaped vessel that refines molten iron from a blast furnace and scrap into steel
8908 kJ
basic oxygen process
Mass x acceleration (N)
Purpose of P & IDs
22. If 10 m3 of a gas at a pressure of 20 kPa (gauge) and a temperature of 10
110.6 kPa
Dividing the ultimate strength by the factor of safety
Mass
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue
23. Combines easily with many other elements - improves atmospheric corrosion resistance - increases strength - amounts of 0.15-0.25%
benefits of copper
Specific heat
Isothermal
4.4 m/s
24. A quadrilateral with no parallel sides
1/2mv2 (kg x velocity(m/s))
Under deposit corrosion - enhanced oxygen generation - contact of live organisms
Trapezium
White
25. The ability to return to its original shape after an external force has been removed
Tangent
elasticity
Isothermal
distance
26. Safe working stress is determined by...
M x g x h (kg x 9.81 m/s/s x height (m))
benefits of nickel
Dividing the ultimate strength by the factor of safety
Process flow drawing
27. Area of a segment
Mass
White
A = 4/3h2 [(square root)d/h-0.608]
The equilibrant
28. A parallelogram with adjacent sides of unequal lengths
Heating and cooling white cast iron at a controlled rate
Rhomboid
Falling temperature
Unified National
29. Work done(J)/time(second) - unit of watts - 1 watt = 1 joule/second
Charles Law
The equilibrant
Power
Material balance
30. 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
Isothermal
Purpose of P & IDs
0.89
Pm x A x L
31. The act or process of measuring
Mensuration
1 cm
Power
Ammonia
32. Any two angles whose sum is 90
A solution
Complementary angles
More than 90 degrees
Coefficient of cubical expansion is often used instead of 'volume' - coefficient of liquids only
33. Is the rate a body moves in a specific direction - direction must be specified - velocity(m/s) = displacement(m)/time(s)
elasticity
520.72 kJ/kg
Tangent
velocity
34. 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
Rhomboid
Stray current corrosion
ellipse
To calculate power from an engine
35. 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
0.0002
benefits of copper
Greater than 180 degrees
benefits of chromium
36. Quantity of heat required to change the temp of a unit mass of a substance by 1 degree
Isosceles triangle
Naperian (Natural) logarithms
Specific heat
Problem solving order
37. Ability to withstand deformation above elastic limit under compression without failure
57.48 mm
A twisting or turning effect
Malleability
Ideal mechanical advantage
38. Copper fails due to...
Permanent and removable
A = 4/3h2 [(square root)d/h-0.608]
Relative density
Ammonia
39. Compounds classified as salts may have the following characteristics
Stroke
Trapezium
Continuity flow
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue
40. Is the required to change a unit mass from a gas to liquid or liquid to a gas
Pm x A x L
elasticity
Power
latent heat of evaporation (vaporation)
41. The most common material used in making large industrial diesel engine pistons is...
0.89
Resultant
A / SinA = b / SinB = c / SinC
Cast iron
42. Four pieces of iron are heated in a furnace to high temperatures. The one at the highest temperature would appear
Falling temperature
White
displacement
Purpose of material balance
43. A body having a gravitational force of 2000 N - is pulled along a horizontal surface at constant speed by a rope that makes an angle of 20
That is supported at two ends
Isothermal
0.0723
Material balance
44. The amount of heat required to completely melt 25 kg of ice from a temperature of -10
A twisting or turning effect
M x g x h (kg x 9.81 m/s/s x height (m))
8908 kJ
White metal and bronze
45. A 1 N weight has a kinetic energy of 1 J when its speed is...
Purpose of material balance
1/2mv2 (kg x velocity(m/s))
4.4 m/s
70 MPa
46. When the co- efficient of friction increases and the force between two surfaces remains constant - the friction force will
Conditions required to produce sulphide corrosion cracking
Composite material
Increase
A
47. PVn(super script n) = C
polytropic
polygon
Complementary angles
Stroke
48. Force(N) x distance(m) or W=Fd - unit of joules - 1KJ = 1000J = 1000Nm = 1KNm - 1MJ = 1000000J = 1000000NM = 1MNm
Calorimetry
distance
4.4 m/s
Work
49. The dryness fraction of steam at a pressure of 400 kPa and a heat content of 2500 kJ/kg is...
dryness fraction
110.6 kPa
0.89
polygon
50. 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
Continuity flow
linear motion relationships
benefits of nickel
Specific heat