SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Work per power stroke (J)
Heating and cooling white cast iron at a controlled rate
A number with the necessary unit
Pm x A x L
0.0002
2. Is the rate a body moves in a specific direction - direction must be specified - velocity(m/s) = displacement(m)/time(s)
26.81 m/s
Ammonia
velocity
161
3. As the cosine decreases - the...
The equilibrant
0.89
Value of the angle increases
Exactly 180 degrees
4. 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
Malleability
One angle is exactly 90 degrees
water equivalent
Charles Law
5. PFDs
Process flow drawing
161
70 MPa
Coefficient of cubical expansion is often used instead of 'volume' - coefficient of liquids only
6. 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
Ultimate stress/working stress
Adiabatic
Continuity flow
Trapezoid
7. Force(N) x distance(m) or W=Fd - unit of joules - 1KJ = 1000J = 1000Nm = 1KNm - 1MJ = 1000000J = 1000000NM = 1MNm
Trapezoid
Work
Output power(W)/input power(W)
0.0723
8. The most common material used in making large industrial diesel engine pistons is...
Stress corrosion cracking
Boyle's law
Relative density
Cast iron
9. 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
8908 kJ
A
That is supported at two ends
Stress corrosion cracking
10. The temperature of saturated steam vapor at 980 kPa is...
Opposite side / hypotenuse
179.02
distance
Stroke
11. Copper fails due to...
One angle is exactly 90 degrees
8908 kJ
Ammonia
Mass
12. P & IDs
Cathodic protection system
One
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue
Mechanical flow diagrams
13. Steam turbine bearings are usually made of...
White metal and bronze
Charles Law
A / SinA = b / SinB = c / SinC
benefits of chromium
14. Straight angle
Exactly 180 degrees
Conditions required to produce sulphide corrosion cracking
Stroke
Trapezium
15. Factor of safety
Stress corrosion cracking
Ultimate stress/working stress
M x g x h (kg x 9.81 m/s/s x height (m))
benefits of nickel
16. 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)
linear motion relationships
Continuity flow
Stray current corrosion
Purpose of material balance
17. Any two angles whose sum is 90
A number with the necessary unit
Hooke's Law
benefits of chromium
Complementary angles
18. Energy can be...
Transformed to different forms
Isosceles triangle
26.81 m/s
The specific heat of the material
19. Stainless fails due to...
Chlorides
Stroke
The specific heat of the material
basic oxygen process
20. A 10 m long steel pipe when heated to increase its temperature by 85
1 cm
Total heat required for change of state
26.81 m/s
More than 90 degrees
21. The heat required to raise the temperature of water at a pressure of 225 kPa from 0
Complementary angles
520.72 kJ/kg
8908 kJ
Trapezium
22. 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
23. 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
2.3026
Ultimate stress/working stress
45 kN
24. 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
0.89
Tangent
Transformed to different forms
25. Is the heat being added or removed to/from a substance without a change of state - still having a changing in temp
A / SinA = b / SinB = c / SinC
Sensible heat
70 MPa
Exactly 180 degrees
26. Orthographic projection means...
Stray current corrosion
View of a cutting plane
Isosceles triangle
Stroke
27. The ability to return to its original shape after an external force has been removed
elasticity
Total heat required for change of state
benefits of copper
Coefficient of friction
28. Right angle
One angle is exactly 90 degrees
water equivalent
520.72 kJ/kg
Continuity flow
29. 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...
10.8 m N of W
Tangent
Complementary angles
26.81 m/s
30. Malleable cast iron is produced by...
elasticity
Problem solving order
Heating and cooling white cast iron at a controlled rate
basic oxygen process
31. Resistance to wear - abrasion and penetration
A Greek letter alpha linear
hardness
Details of P & IDs
Chord
32. The dryness fraction of steam at a pressure of 400 kPa and a heat content of 2500 kJ/kg is...
0.89
161
benefits of copper
brinell hardness test
33. A automobile travels at 60 miles per hour. Expressed in metres per second - this would be equivalent to...
Mass
0.0002
26.81 m/s
8908 kJ
34. The moment of a force about a point is...
A twisting or turning effect
Rhombus
161
Details of P & IDs
35. Kinetic energy (Ek)
Hooke's Law
1/2mv2 (kg x velocity(m/s))
The specific heat of the material
White
36. Expansion of a gas is said to be adiabatic when expansion takes place at...
Trapezoid
Less than 90 degrees
Falling temperature
White metal and bronze
37. Area of a segment
displacement
A = 4/3h2 [(square root)d/h-0.608]
Divide the maximum load by the original cross - sectional area
A twisting or turning effect
38. A = arc length x radius / 2 - A = (pi/360) x pir2 - length of radii and angle between radii known
Areas of sectors (bounded by 2 radii and arc between them)
hexagon
The specific heat of the material
White metal and bronze
39. The pressure that should be used when calculating power - pressure is not constant throughout a power stroke - decreases as gas/steam expands
Octagon
effective pressure
Sulfuric acid
linear motion relationships
40. Ratio of the opposite to the adjacent side of a right- angled triangle
effective pressure
Sulfuric acid
Unified National
Tangent
41. 1.not showing temperatures or pressures 2. piping ID numbers and sizing 3. all instrumentation 4. piping details
distance
Mass
Details of P & IDs
Cathodic protection system
42. According to Hooke's Law - the stress in an elastic body is directly proportional to the strain if...
The elastic limit of the material is not exceeded
Unified National
polygon
Isothermal
43. 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
View of a cutting plane
Purpose of P & IDs
Specific heat
Relative density
44. Of a process or change taking place at constant temperature - PV = C
Isothermal
161
General gas law
Ultimate stress/working stress
45. coefficient of expansion
polygon
Coefficient of cubical expansion is often used instead of 'volume' - coefficient of liquids only
1. have a basic effect 2. have an acid effect 3. be neutral 4. change red litmus paper blue
A Greek letter alpha linear
46. A triangle with no two sides of equal length
Resultant
water equivalent
70 MPa
Scalene triangle
47. Mechanical efficiency
The equilibrant
More than 90 degrees
A solution
Output power(W)/input power(W)
48. If 10 m3 of a gas at a pressure of 20 kPa (gauge) and a temperature of 10
White metal and bronze
110.6 kPa
Ultimate stress/working stress
70 MPa
49. The amount of heat required to completely melt 25 kg of ice from a temperature of -10
8908 kJ
Chord
One angle is exactly 90 degrees
Cast iron
50. A 1 N weight has a kinetic energy of 1 J when its speed is...
Naperian (Natural) logarithms
velocity
hardness
4.4 m/s