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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. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
stress corrosion
medium carbon steel
manganese and silicon alloy
malleable cast iron
2. 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
hot rolling
thermoset rubbers
Dye penetration test
Commutator
3. Rubbers
Transistor
bending stress
Bernoulli's principle low speed
elastomers=what
4. 1%<X<2% carbon. more cementite - used for files
ultra- high carbon steel
High frequency
Strain
Tempering
5. Between 2000-35 -700km above the earth's surface.
Frequency modulation
Brushes
Medium earth orbit
if 100% efficient
6. Results from the changing anode and cathode regions over the entire surface
thermoplastic rubbers
spalling concrete
Uniform attack
Commutator
7. 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
VR
Tempering
spalling concrete
8. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
spalling concrete
Brushes
Attenuation
thermosetting polymers
9. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
Concrete
n
Low earth orbit
10. Squeezing of the hot metal between two shaped dies excess is cut off
ferrite
pearlite
manganese and silicon alloy
closed die forging
11. Good high temp wear - tools
medium carbon steel
tungsten alloy
Geosynchronous orbit
Fluorescent test
12. 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
Satellite
High frequency
hot rolling
Sacrifical anode
13. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
shear stress
MA
grey cast iron
14. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
pearlite
DC motor
Mobiles
grey cast iron
15. MA=VR
if 100% efficient
ferrite
AC motor
Annealing
16. Resulting from combined effect of stresses set up within the metal
stress corrosion
Fluorescent test
pearlite
malleable cast iron
17. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Radiography
open die forging
high carbon steel
n%
18. Soaked cast iron at 870c for long time then cooled slow
malleable cast iron
Low earth orbit
drop forging
if 100% efficient
19. 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.
rectifier
chromium alloy
Twisted pair cable
Dye penetration test
20. Load/area
Low carbon steel
Concrete
Ultrasonic inspection
stress
21. Ma/vr
Geosynchronous orbit
FM
n
Transistor
22. Horizontal
Strain
elastomers=what
wet corrosion/electrochemical corrosion
cos
23. AC to DC
stress corrosion
modulation
Radio antenna length
rectifier
24. Hard - strong
VR
thermoset rubbers
pearlite
Brushes
25. A method of transmitting signals by changing the frequency of a wave
forging
manganese and silicon alloy
Frequency modulation
Transistor
26. Being forced - under pressure - through a hole like toothpaste. either hot or cold
FM
Radio antenna length
Low earth orbit
extrusion
27. 100khz
nickel alloy
AM
Bernoulli's principle high speed
Normalising
28. High pressure
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29. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
white cast iron
Magnetic inspection
Normalising
30. Vertical
cos
sin
Sacrifical anode
drop forging
31. Can be reflected of the ionosphere - 3 to 30 megahertz
Commutator
nickel alloy
Magnetic inspection
High frequency
32. Usually used together - strengthening and toughness
manganese and silicon alloy
modulation
Sacrifical anode
cos
33. These have weaker secondary bonds which allow the stretching
cos
mild steel
thermoplastic rubbers
Annealing
34. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
ferrite
Fluorescent test
Dry corrosion
elastomers=what
35. Produces; harder - stronger and less ductile product
Hardening
nodular graphite cast iron
high carbon steel
cold rolling
36. Field winding parallel to armature winding. Bad for direct coupling
cos
Impressed current
DC motor
Kinetic energy
37. 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
mild steel
Dye penetration test
Amplitude modulation
hot rolling
38. Soft - ductile
ferrite
ultra- high carbon steel
modulation
manganese and silicon alloy
39. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Frequency modulation
Tempering
Ultrasonic inspection
open die forging
40. Low pressure
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41. Area parallel to force
Ultrasonic inspection
shear stress
bending stress
Magnetic inspection
42. Supply current to the rotating commutator from an external source
hot rolling
Brushes
Annealing
Hardening
43. Good toughness and fatigue. high strength structures
nickel alloy
Laminated glass
white cast iron
Amplitude modulation
44. 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
Hardening
ferrite
Bandwidth
AC motor
45. 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.
Sacrifical anode
Medium earth orbit
Ultrasonic inspection
Impressed current
46. 10MHZ
hot rolling
Magnetic inspection
fibre optic cable
FM
47. A method of transmitting signals by changing the amplitude of a waves
shear stress
Amplitude modulation
chromium alloy
MA
48. Forming of metal by compressive force above recrystallization point.
VR
forging
AC motor
elastomers=what
49. The quantity of information that can be transmitted through a communication medium in a given amount of time.
thermoset rubbers
MA
stress
Bandwidth
50. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
fibre optic cable
AM
Bernoulli's principle high speed
Laminated glass