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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. Can be reflected of the ionosphere - 3 to 30 megahertz
high carbon steel
grey cast iron
High frequency
Low earth orbit
2. Rubbers
stress
elastomers=what
ultra- high carbon steel
stress corrosion
3. 100GHZ+
Bandwidth
Satellite
drop forging
nickel alloy
4. X<1% silicon no graphite - has carbon/carbide. very brittle
closed die forging
AM
white cast iron
Radiography
5. Allows for another signal to be sent along the carrier signal
white cast iron
cold rolling
nodular graphite cast iron
modulation
6. Good high temp wear - tools
Amplitude modulation
n%
thermoplastic rubbers
tungsten alloy
7. Field winding parallel to armature winding. Bad for direct coupling
nodular graphite cast iron
DC motor
Low earth orbit
nickel alloy
8. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Ultrasonic inspection
grey cast iron
cementite
Tempering
9. Better properties that would come from machining
forging properties
Strain
Laminated glass
n%
10. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
high carbon steel
Radio antenna length
shear stress
fibre optic cable
11. Usually used together - strengthening and toughness
manganese and silicon alloy
stress corrosion
ferrite
Sacrifical anode
12. 10MHZ
Fluorescent test
FM
hot rolling
Transistor
13. Maximum bending moments X distance to natural axis/ second moment of area
bending stress
n
wet corrosion/electrochemical corrosion
AC motor
14. Hard - strong
manganese and silicon alloy
pearlite
n%
Radiography
15. Low pressure
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16. 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
AC motor
Brushes
Impressed current
17. AC to DC
thermosetting polymers
rectifier
Bandwidth
Impressed current
18. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
tungsten alloy
nodular graphite cast iron
Normalising
Strain
19. Vertical
Strain
Dry corrosion
Low earth orbit
sin
20. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
sin
spalling concrete
hot rolling
white cast iron
21. Mass X gravity X height
VR
Potential energy
Mobiles
Low earth orbit
22. 1/4 of the wavelength (higher better)
Mobiles
Radio antenna length
Medium earth orbit
VR
23. Resulting from combined effect of stresses set up within the metal
Bandwidth
bending stress
malleable cast iron
stress corrosion
24. Difference/original
Brushes
Strain
Medium earth orbit
Fluorescent test
25. Ma/vr
Frequency modulation
n
Bandwidth
hot rolling
26. Solid at room temp - weak secondary bonds. can be reheated multiply times.
ferrite
thermosoftening polymer
tungsten alloy
thermosetting polymers
27. 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
Brushes
Dye penetration test
Low carbon steel
Uniform attack
28. Between 2000-35 -700km above the earth's surface.
Commutator
medium carbon steel
Medium earth orbit
Kinetic energy
29. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Amplitude modulation
Concrete
white cast iron
Normalising
30. Horizontal
cos
high carbon steel
Impressed current
fibre optic cable
31. Produces; harder - stronger and less ductile product
cold rolling
Tempering
extrusion
ultra- high carbon steel
32. Hard - brittle
medium carbon steel
cementite
modulation
Satellite
33. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
hot rolling
Dry corrosion
Hardening
Potential energy
34. Good toughness and fatigue. high strength structures
thermosoftening polymer
Ultrasonic inspection
nickel alloy
nodular graphite cast iron
35. Supply current to the rotating commutator from an external source
Brushes
AM
Bandwidth
forging properties
36. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
VR
MA
Ultrasonic inspection
Sacrifical anode
37. 1%<X<2% carbon. more cementite - used for files
ultra- high carbon steel
tungsten alloy
Bandwidth
cementite
38. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
MA
Ultrasonic inspection
Attenuation
thermosoftening polymer
39. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Ultrasonic inspection
tungsten alloy
Tempered Glass
Bandwidth
40. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
bending stress
Uniform attack
Bernoulli's principle high speed
41. 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
Normalising
ultra- high carbon steel
Bandwidth
AC motor
42. Results from the changing anode and cathode regions over the entire surface
nodular graphite cast iron
closed die forging
Uniform attack
thermosetting polymers
43. 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
extrusion
Satellite
rectifier
Annealing
44. 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.
Hardening
Impressed current
stress corrosion
n%
45. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
Ultrasonic inspection
Commutator
mild steel
extrusion
46. 1GHZ
nodular graphite cast iron
hot rolling
Mobiles
Dye penetration test
47. 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
Medium earth orbit
Attenuation
Commutator
bending stress
48. When upper die is dropped on bottom
Sacrifical anode
tungsten alloy
Uniform attack
drop forging
49. A strong hard building material composed of sand and gravel and cement and water
open die forging
Low carbon steel
High frequency
Concrete
50. Soaked cast iron at 870c for long time then cooled slow
Uniform attack
Kinetic energy
AC motor
malleable cast iron