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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. Ma/vr x 100/1
n%
Hardening
open die forging
fibre optic cable
2. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
medium carbon steel
forging properties
ferrite
VR
3. 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
nickel alloy
Fluorescent test
Low carbon steel
grey cast iron
4. Vertical
thermosetting polymers
stress corrosion
Impressed current
sin
5. Good high temp wear - tools
shear stress
Sacrifical anode
Tempered Glass
tungsten alloy
6. A method of transmitting signals by changing the frequency of a wave
Laminated glass
Frequency modulation
Brushes
Bernoulli's principle high speed
7. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Tempered Glass
elastomers=what
white cast iron
cold rolling
8. Hard - brittle
ferrite
cementite
thermoplastic rubbers
Hardening
9. A cable made of optical fibers that can transmit large amounts of information at the speed of light
Dry corrosion
stress
fibre optic cable
Radiography
10. Soft - ductile
high carbon steel
Tempering
Impressed current
ferrite
11. MA=VR
Impressed current
if 100% efficient
manganese and silicon alloy
VR
12. 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
Annealing
manganese and silicon alloy
Sacrifical anode
Laminated glass
13. Results from the changing anode and cathode regions over the entire surface
Uniform attack
n%
stress
Impressed current
14. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermoset rubbers
thermosoftening polymer
shear stress
Concrete
15. A strong hard building material composed of sand and gravel and cement and water
Concrete
Uniform attack
thermosoftening polymer
Medium earth orbit
16. The greater the sulphur the harder the rubber to stretch
malleable cast iron
thermoset rubbers
Radiography
ultra- high carbon steel
17. 100khz
Low earth orbit
n
AM
spalling concrete
18. Soaked cast iron at 870c for long time then cooled slow
Mobiles
Geosynchronous orbit
malleable cast iron
Radiography
19. x<0.15% carbon. ferrite. good for cold working - rolling sheets
tungsten alloy
Bandwidth
spalling concrete
Low carbon steel
20. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Kinetic energy
Medium earth orbit
n%
extrusion
21. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
Bernoulli's principle high speed
Uniform attack
nodular graphite cast iron
extrusion
22. Resulting from exposure to damp environments and liquids.
wet corrosion/electrochemical corrosion
cos
Transistor
stress
23. Usually used together - strengthening and toughness
manganese and silicon alloy
Laminated glass
Fluorescent test
Normalising
24. 1%<X<2% carbon. more cementite - used for files
Potential energy
ultra- high carbon steel
white cast iron
Radio antenna length
25. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
cos
Brushes
thermoplastic rubbers
26. Good toughness and fatigue. high strength structures
mild steel
nickel alloy
Laminated glass
wet corrosion/electrochemical corrosion
27. Can be reflected of the ionosphere - 3 to 30 megahertz
Twisted pair cable
Strain
High frequency
ultra- high carbon steel
28. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
ferrite
malleable cast iron
wet corrosion/electrochemical corrosion
Hardening
29. 1GHZ
Mobiles
Amplitude modulation
Strain
elastomers=what
30. 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
n
AC motor
forging
white cast iron
31. 100GHZ+
stress corrosion
MA
Satellite
nickel alloy
32. A method of transmitting signals by changing the amplitude of a waves
Fluorescent test
Strain
Amplitude modulation
wet corrosion/electrochemical corrosion
33. Rubbers
Commutator
Tempered Glass
forging
elastomers=what
34. 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.
Concrete
cold rolling
thermoplastic rubbers
Twisted pair cable
35. Field winding parallel to armature winding. Bad for direct coupling
FM
if 100% efficient
DC motor
extrusion
36. Good wear - case hardening. ball bearings
stress corrosion
chromium alloy
thermoset rubbers
bending stress
37. Low pressure
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38. When upper die is dropped on bottom
thermoplastic rubbers
drop forging
AM
ferrite
39. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Strain
Mobiles
thermosoftening polymer
high carbon steel
40. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
chromium alloy
white cast iron
grey cast iron
forging properties
41. AC to DC
FM
rectifier
manganese and silicon alloy
thermosetting polymers
42. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Magnetic inspection
ultra- high carbon steel
shear stress
Tempering
43. 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
fibre optic cable
Brushes
spalling concrete
44. Difference/original
Strain
Satellite
Bandwidth
AM
45. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
AC motor
ferrite
Dry corrosion
drop forging
46. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
mild steel
Medium earth orbit
wet corrosion/electrochemical corrosion
VR
47. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
thermosetting polymers
grey cast iron
Radiography
Ultrasonic inspection
48. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
thermosetting polymers
Brushes
AM
cementite
49. Ma/vr
n
Amplitude modulation
Tempered Glass
malleable cast iron
50. Allows for another signal to be sent along the carrier signal
malleable cast iron
Dye penetration test
Bernoulli's principle low speed
modulation