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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. Resulting from combined effect of stresses set up within the metal
malleable cast iron
thermosoftening polymer
stress corrosion
nodular graphite cast iron
2. 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
nickel alloy
high carbon steel
Transistor
ferrite
3. Soft - ductile
Impressed current
ferrite
wet corrosion/electrochemical corrosion
Attenuation
4. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
if 100% efficient
Twisted pair cable
nickel alloy
spalling concrete
5. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Attenuation
Dry corrosion
forging
Hardening
6. A strong hard building material composed of sand and gravel and cement and water
thermosoftening polymer
Concrete
Commutator
mild steel
7. Load/effort
cementite
Satellite
thermosoftening polymer
MA
8. Horizontal
bending stress
closed die forging
cos
white cast iron
9. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Normalising
Hardening
thermosetting polymers
Radiography
10. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
High frequency
thermoset rubbers
wet corrosion/electrochemical corrosion
Magnetic inspection
11. Soaked cast iron at 870c for long time then cooled slow
cold rolling
if 100% efficient
Transistor
malleable cast iron
12. Hard - strong
chromium alloy
medium carbon steel
pearlite
Geosynchronous orbit
13. 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.
hot rolling
Impressed current
drop forging
Bandwidth
14. Ma/vr
drop forging
Annealing
Low carbon steel
n
15. When upper die is dropped on bottom
malleable cast iron
drop forging
n
Uniform attack
16. Rubbers
thermosoftening polymer
elastomers=what
Geosynchronous orbit
AC motor
17. Vertical
sin
Impressed current
High frequency
tungsten alloy
18. A cable made of optical fibers that can transmit large amounts of information at the speed of light
Normalising
closed die forging
ultra- high carbon steel
fibre optic cable
19. Forming of metal by compressive force above recrystallization point.
forging
Mobiles
Dye penetration test
sin
20. Low pressure
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21. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
FM
mild steel
Frequency modulation
modulation
22. 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
ferrite
Radio antenna length
Commutator
Annealing
23. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
Dry corrosion
Amplitude modulation
VR
Medium earth orbit
24. The greater the sulphur the harder the rubber to stretch
thermoset rubbers
tungsten alloy
forging properties
hot rolling
25. Better properties that would come from machining
DC motor
forging properties
extrusion
malleable cast iron
26. Results from the changing anode and cathode regions over the entire surface
fibre optic cable
grey cast iron
Potential energy
Uniform attack
27. Ma/vr x 100/1
ultra- high carbon steel
Bandwidth
n%
Normalising
28. Good toughness and fatigue. high strength structures
manganese and silicon alloy
nodular graphite cast iron
nickel alloy
Medium earth orbit
29. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Radiography
Amplitude modulation
high carbon steel
Strain
30. An orbit less than 1 -500 km. above the Earth's surface.
Bernoulli's principle high speed
nodular graphite cast iron
Low earth orbit
bending stress
31. A method of transmitting signals by changing the amplitude of a waves
stress
cold rolling
Radiography
Amplitude modulation
32. Resulting from exposure to damp environments and liquids.
hot rolling
tungsten alloy
wet corrosion/electrochemical corrosion
Normalising
33. Area parallel to force
cos
Radiography
shear stress
Twisted pair cable
34. Supply current to the rotating commutator from an external source
Low earth orbit
fibre optic cable
Brushes
Low carbon steel
35. 1%<X<2% carbon. more cementite - used for files
Magnetic inspection
ultra- high carbon steel
Laminated glass
nickel alloy
36. Difference/original
Laminated glass
Strain
Twisted pair cable
DC motor
37. Can be reflected of the ionosphere - 3 to 30 megahertz
High frequency
Transistor
Bernoulli's principle high speed
Strain
38. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
stress
grey cast iron
cementite
Annealing
39. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
VR
malleable cast iron
nodular graphite cast iron
Low carbon steel
40. 100khz
n%
Brushes
Radiography
AM
41. 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.
forging properties
AM
Twisted pair cable
high carbon steel
42. Solid at room temp - weak secondary bonds. can be reheated multiply times.
DC motor
Transistor
thermoset rubbers
thermosoftening polymer
43. Elongation of grain flow in direction of rolling
hot rolling
grey cast iron
Amplitude modulation
VR
44. Usually used together - strengthening and toughness
cold rolling
white cast iron
manganese and silicon alloy
thermosetting polymers
45. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
thermosetting polymers
open die forging
AC motor
Radiography
46. Hard - brittle
cementite
mild steel
Concrete
Tempered Glass
47. Between 2000-35 -700km above the earth's surface.
Dry corrosion
Medium earth orbit
thermoset rubbers
thermosoftening polymer
48. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
Normalising
Kinetic energy
chromium alloy
open die forging
49. High pressure
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50. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Low carbon steel
Bandwidth
Dry corrosion
drop forging