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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. 100khz
Ultrasonic inspection
forging properties
AM
wet corrosion/electrochemical corrosion
2. Us a metal that is more reactive. It is connect to another metal and corrodes instead of the other metal. the Anode is replaced periodically
manganese and silicon alloy
Dye penetration test
Sacrifical anode
Transistor
3. 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
Mobiles
forging properties
fibre optic cable
Geosynchronous orbit
4. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
mild steel
thermoplastic rubbers
pearlite
AM
5. 1GHZ
Mobiles
Satellite
Laminated glass
stress corrosion
6. Hard - brittle
bending stress
white cast iron
cementite
Hardening
7. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
white cast iron
nodular graphite cast iron
Satellite
Magnetic inspection
8. 1%<X<2% carbon. more cementite - used for files
Tempered Glass
Impressed current
closed die forging
ultra- high carbon steel
9. Ma/vr x 100/1
n%
Kinetic energy
MA
ultra- high carbon steel
10. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
Medium earth orbit
high carbon steel
open die forging
High frequency
11. Ma/vr
n
nickel alloy
Medium earth orbit
Low earth orbit
12. Good toughness and fatigue. high strength structures
nickel alloy
drop forging
Tempered Glass
extrusion
13. Being forced - under pressure - through a hole like toothpaste. either hot or cold
open die forging
extrusion
Brushes
Bandwidth
14. 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.
Laminated glass
thermosoftening polymer
Impressed current
chromium alloy
15. These have weaker secondary bonds which allow the stretching
forging
if 100% efficient
thermoplastic rubbers
bending stress
16. Between 2000-35 -700km above the earth's surface.
forging
medium carbon steel
Magnetic inspection
Medium earth orbit
17. 10MHZ
n%
Radio antenna length
FM
medium carbon steel
18. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Normalising
stress
Laminated glass
shear stress
19. Usually used together - strengthening and toughness
manganese and silicon alloy
sin
n
cold rolling
20. Allows for another signal to be sent along the carrier signal
Concrete
mild steel
modulation
Strain
21. 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
Bernoulli's principle low speed
spalling concrete
Annealing
22. A cable made of optical fibers that can transmit large amounts of information at the speed of light
elastomers=what
fibre optic cable
Tempering
Transistor
23. Softening a material such as metal by controlled heating and cooling. This makes the metal less brittle and more easily adaptable. Soaking till austenite then cooling slowly. large grains
AC motor
Annealing
mild steel
Sacrifical anode
24. Maximum bending moments X distance to natural axis/ second moment of area
Dry corrosion
bending stress
Attenuation
fibre optic cable
25. Supply current to the rotating commutator from an external source
medium carbon steel
Concrete
Dye penetration test
Brushes
26. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
if 100% efficient
closed die forging
rectifier
27. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
rectifier
Hardening
Radio antenna length
Magnetic inspection
28. Hard - strong
FM
pearlite
Attenuation
Ultrasonic inspection
29. Low pressure
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30. Horizontal
cos
tungsten alloy
Ultrasonic inspection
AC motor
31. Area parallel to force
high carbon steel
VR
shear stress
Impressed current
32. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Dry corrosion
Tempering
Attenuation
MA
33. A method of transmitting signals by changing the frequency of a wave
pearlite
fibre optic cable
Attenuation
Frequency modulation
34. X<1% silicon no graphite - has carbon/carbide. very brittle
hot rolling
Low earth orbit
manganese and silicon alloy
white cast iron
35. Forming of metal by compressive force above recrystallization point.
Radiography
grey cast iron
forging
Low earth orbit
36. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Annealing
Bandwidth
drop forging
Potential energy
37. 100GHZ+
Satellite
thermoset rubbers
drop forging
mild steel
38. High pressure
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39. Good wear - case hardening. ball bearings
chromium alloy
closed die forging
Commutator
hot rolling
40. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Satellite
thermosetting polymers
n
Tempered Glass
41. 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
grey cast iron
Commutator
pearlite
High frequency
42. Resulting from combined effect of stresses set up within the metal
nodular graphite cast iron
stress corrosion
Potential energy
Amplitude modulation
43. A method of transmitting signals by changing the amplitude of a waves
fibre optic cable
Amplitude modulation
Ultrasonic inspection
VR
44. Resulting from exposure to damp environments and liquids.
rectifier
Strain
wet corrosion/electrochemical corrosion
high carbon steel
45. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
grey cast iron
spalling concrete
thermosoftening polymer
Bernoulli's principle high speed
46. Squeezing of the hot metal between two shaped dies excess is cut off
Annealing
stress corrosion
modulation
closed die forging
47. A strong hard building material composed of sand and gravel and cement and water
Brushes
Kinetic energy
Concrete
bending stress
48. Can be reflected of the ionosphere - 3 to 30 megahertz
thermoplastic rubbers
High frequency
MA
n
49. Load/effort
MA
Amplitude modulation
Tempered Glass
Attenuation
50. Produces; harder - stronger and less ductile product
sin
cold rolling
rectifier
Concrete