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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. Being forced - under pressure - through a hole like toothpaste. either hot or cold
stress
Sacrifical anode
Uniform attack
extrusion
2. Hard - strong
malleable cast iron
drop forging
pearlite
Dry corrosion
3. Resulting from combined effect of stresses set up within the metal
ferrite
stress corrosion
wet corrosion/electrochemical corrosion
High frequency
4. Results from the changing anode and cathode regions over the entire surface
white cast iron
Uniform attack
Impressed current
forging
5. Area parallel to force
thermosetting polymers
chromium alloy
n%
shear stress
6. Ma/vr x 100/1
fibre optic cable
tungsten alloy
stress corrosion
n%
7. 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
AC motor
Satellite
Bernoulli's principle high speed
forging
8. 1/4 of the wavelength (higher better)
mild steel
Geosynchronous orbit
Normalising
Radio antenna length
9. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
Dry corrosion
VR
rectifier
Potential energy
10. Load/effort
cos
Fluorescent test
hot rolling
MA
11. 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
Dry corrosion
Annealing
Radio antenna length
Bernoulli's principle low speed
12. 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
Geosynchronous orbit
open die forging
mild steel
Strain
13. Between 2000-35 -700km above the earth's surface.
Medium earth orbit
nickel alloy
Amplitude modulation
Concrete
14. 100GHZ+
forging properties
cementite
Satellite
AM
15. Good toughness and fatigue. high strength structures
Attenuation
Fluorescent test
thermoset rubbers
nickel alloy
16. Can be reflected of the ionosphere - 3 to 30 megahertz
chromium alloy
High frequency
ultra- high carbon steel
tungsten alloy
17. Hard - brittle
grey cast iron
tungsten alloy
cementite
High frequency
18. High pressure
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19. MA=VR
if 100% efficient
thermoplastic rubbers
mild steel
Geosynchronous orbit
20. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
Uniform attack
Twisted pair cable
cold rolling
21. A strong hard building material composed of sand and gravel and cement and water
Concrete
Medium earth orbit
Tempered Glass
Low carbon steel
22. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
drop forging
Tempering
MA
23. x<0.15% carbon. ferrite. good for cold working - rolling sheets
manganese and silicon alloy
FM
Magnetic inspection
Low carbon steel
24. Dye is sprayed onto a surface - with excess being wiped away - meaning any left on the piece would be in cracks that exist in it. A developer is then added to it to expose any left over - I.e in the cracks
Dye penetration test
n%
n
medium carbon steel
25. Elongation of grain flow in direction of rolling
hot rolling
Geosynchronous orbit
Tempering
forging
26. 1/2Xmass X velocity X velocity
nodular graphite cast iron
shear stress
VR
Kinetic energy
27. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
ultra- high carbon steel
Laminated glass
wet corrosion/electrochemical corrosion
Medium earth orbit
28. 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
Attenuation
fibre optic cable
Sacrifical anode
thermosetting polymers
29. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Tempering
ferrite
High frequency
high carbon steel
30. Ma/vr
n
thermoset rubbers
shear stress
nickel alloy
31. 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.
grey cast iron
Twisted pair cable
Concrete
Geosynchronous orbit
32. Usually used together - strengthening and toughness
manganese and silicon alloy
Bernoulli's principle high speed
stress
Transistor
33. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
Potential energy
medium carbon steel
cementite
Normalising
34. 1GHZ
shear stress
closed die forging
Kinetic energy
Mobiles
35. Soaked cast iron at 870c for long time then cooled slow
Radio antenna length
malleable cast iron
shear stress
VR
36. Load/area
Brushes
cementite
Radio antenna length
stress
37. The greater the sulphur the harder the rubber to stretch
Low carbon steel
thermoset rubbers
ultra- high carbon steel
Medium earth orbit
38. A method of transmitting signals by changing the frequency of a wave
Dye penetration test
white cast iron
Frequency modulation
hot rolling
39. An orbit less than 1 -500 km. above the Earth's surface.
Tempered Glass
Low earth orbit
Mobiles
n%
40. These have weaker secondary bonds which allow the stretching
VR
thermoplastic rubbers
pearlite
Tempering
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
Radiography
Dye penetration test
chromium alloy
Commutator
42. Mass X gravity X height
Potential energy
modulation
VR
DC motor
43. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Hardening
Magnetic inspection
spalling concrete
Brushes
44. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Normalising
Dye penetration test
Transistor
Satellite
45. Dye is sprayed onto a surface - with excess being wiped away - meaning any left on the piece would be in cracks that exist in it. A Fluorescent light is turned on to expose any left over - I.e in the cracks
Fluorescent test
wet corrosion/electrochemical corrosion
shear stress
Radiography
46. Difference/original
stress corrosion
Kinetic energy
Strain
shear stress
47. Produces; harder - stronger and less ductile product
extrusion
Commutator
rectifier
cold rolling
48. A cable made of optical fibers that can transmit large amounts of information at the speed of light
rectifier
forging
cold rolling
fibre optic cable
49. 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.
if 100% efficient
Bernoulli's principle high speed
Impressed current
medium carbon steel
50. 10MHZ
medium carbon steel
Dry corrosion
FM
manganese and silicon alloy