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Test your basic knowledge |
Engineering Studies
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. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
ferrite
grey cast iron
Bernoulli's principle low speed
elastomers=what
2. A strong hard building material composed of sand and gravel and cement and water
Twisted pair cable
hot rolling
Concrete
Bandwidth
3. Usually used together - strengthening and toughness
manganese and silicon alloy
High frequency
chromium alloy
Ultrasonic inspection
4. 1/2Xmass X velocity X velocity
Tempering
elastomers=what
Dye penetration test
Kinetic energy
5. Mass X gravity X height
Laminated glass
chromium alloy
Potential energy
modulation
6. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
n
Commutator
nickel alloy
7. Hard - strong
cementite
n
thermoplastic rubbers
pearlite
8. Load/effort
thermoset rubbers
MA
Tempering
Satellite
9. Area load piston/area of effort piston
sin
Attenuation
VR
bending stress
10. A solid state component made from three layers of semiconductor material that can amplify the strenght of an electric signal or act as an electronic switch
Transistor
Medium earth orbit
Radiography
rectifier
11. These have weaker secondary bonds which allow the stretching
cementite
AM
Medium earth orbit
thermoplastic rubbers
12. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Tempered Glass
VR
elastomers=what
Bernoulli's principle low speed
13. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
white cast iron
Magnetic inspection
mild steel
Bandwidth
14. Ma/vr x 100/1
Bernoulli's principle high speed
n%
Magnetic inspection
high carbon steel
15. Solid at room temp - weak secondary bonds. can be reheated multiply times.
mild steel
drop forging
MA
thermosoftening polymer
16. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
forging properties
Tempering
High frequency
Dry corrosion
17. A flexible communications cable that contains pairs of insulated copper wires that are twisted together for reduction of EMI and RFI and covered with an outer insulating jacket.
Twisted pair cable
n%
ultra- high carbon steel
wet corrosion/electrochemical corrosion
18. 100GHZ+
malleable cast iron
Satellite
pearlite
Sacrifical anode
19. A motor that is light - rugged and very reliable - runs on ac current and are more common in robotics. Can only run at a certain speed
high carbon steel
forging
pearlite
AC motor
20. 1GHZ
hot rolling
Kinetic energy
Mobiles
tungsten alloy
21. Allows for another signal to be sent along the carrier signal
stress corrosion
nodular graphite cast iron
modulation
Uniform attack
22. Ma/vr
AC motor
if 100% efficient
MA
n
23. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
DC motor
ultra- high carbon steel
mild steel
cold rolling
24. Supply current to the rotating commutator from an external source
Brushes
Commutator
Radiography
Mobiles
25. Used where scarifical anodes cannot supply enough protection - offshore oil rigs - buried pipes - big things. protection is provided by connecting a rectifier to provide a direct current source between the anode and the metal being protected.
Impressed current
AC motor
manganese and silicon alloy
Low earth orbit
26. High pressure
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27. An orbit in which a satellite orbits Earth at the same rate as Earth rotates and thus stays over the same place all the time
Brushes
Geosynchronous orbit
ultra- high carbon steel
Uniform attack
28. Produces; harder - stronger and less ductile product
cold rolling
Attenuation
Fluorescent test
mild steel
29. A method of transmitting signals by changing the amplitude of a waves
Amplitude modulation
n
nodular graphite cast iron
Attenuation
30. Field winding parallel to armature winding. Bad for direct coupling
DC motor
sin
elastomers=what
Fluorescent test
31. 10MHZ
FM
modulation
shear stress
Hardening
32. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Bernoulli's principle low speed
Sacrifical anode
extrusion
Twisted pair cable
33. Good high temp wear - tools
chromium alloy
extrusion
Ultrasonic inspection
tungsten alloy
34. A cable made of optical fibers that can transmit large amounts of information at the speed of light
fibre optic cable
tungsten alloy
wet corrosion/electrochemical corrosion
Radiography
35. An orbit less than 1 -500 km. above the Earth's surface.
Radio antenna length
Low earth orbit
elastomers=what
Bernoulli's principle high speed
36. Difference/original
Strain
Bernoulli's principle low speed
Geosynchronous orbit
pearlite
37. Better properties that would come from machining
cold rolling
AM
Concrete
forging properties
38. x<0.15% carbon. ferrite. good for cold working - rolling sheets
forging
Low carbon steel
hot rolling
ultra- high carbon steel
39. A device that converts the AC inside a DC generator to a DC output or converts a DC supply to an AC inside a DC motor.keeping the armature rotating
cos
Commutator
pearlite
rectifier
40. Squeezing of the hot metal between two shaped dies excess is cut off
n
stress corrosion
closed die forging
Dry corrosion
41. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Normalising
Bandwidth
n
Impressed current
42. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
mild steel
Radiography
VR
Tempering
43. 100khz
Frequency modulation
Normalising
MA
AM
44. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Sacrifical anode
Tempering
Bernoulli's principle low speed
Hardening
45. 1%<X<2% carbon. more cementite - used for files
cementite
n
Attenuation
ultra- high carbon steel
46. Hard - brittle
AC motor
cementite
n%
open die forging
47. A method of transmitting signals by changing the frequency of a wave
shear stress
forging properties
Bernoulli's principle low speed
Frequency modulation
48. Vertical
Transistor
nodular graphite cast iron
rectifier
sin
49. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
Uniform attack
extrusion
open die forging
MA
50. AC to DC
Frequency modulation
n
rectifier
VR