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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. Allows for another signal to be sent along the carrier signal
Bernoulli's principle low speed
chromium alloy
Low earth orbit
modulation
2. Horizontal
Radio antenna length
cos
drop forging
n%
3. The greater the sulphur the harder the rubber to stretch
stress corrosion
grey cast iron
thermoset rubbers
forging properties
4. Solid at room temp - weak secondary bonds. can be reheated multiply times.
Low carbon steel
Frequency modulation
thermosoftening polymer
pearlite
5. 1%<X<2% carbon. more cementite - used for files
Annealing
Concrete
ultra- high carbon steel
Ultrasonic inspection
6. Usually used together - strengthening and toughness
Concrete
Radiography
Dry corrosion
manganese and silicon alloy
7. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
Commutator
bending stress
Uniform attack
8. Area load piston/area of effort piston
High frequency
VR
Normalising
Transistor
9. Resulting from combined effect of stresses set up within the metal
High frequency
Tempered Glass
Strain
stress corrosion
10. 1GHZ
MA
Mobiles
grey cast iron
nickel alloy
11. 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
wet corrosion/electrochemical corrosion
Fluorescent test
bending stress
Laminated glass
12. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
Low earth orbit
spalling concrete
Low carbon steel
n%
13. A cable made of optical fibers that can transmit large amounts of information at the speed of light
if 100% efficient
hot rolling
Frequency modulation
fibre optic cable
14. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Amplitude modulation
Strain
Mobiles
Normalising
15. Soaked cast iron at 870c for long time then cooled slow
malleable cast iron
Dye penetration test
Radiography
Laminated glass
16. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
mild steel
Attenuation
stress corrosion
chromium alloy
17. 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
MA
rectifier
ferrite
Annealing
18. High pressure
19. Hard - strong
Low earth orbit
pearlite
Twisted pair cable
Frequency modulation
20. Can be reflected of the ionosphere - 3 to 30 megahertz
High frequency
medium carbon steel
Potential energy
Bernoulli's principle low speed
21. 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
Commutator
Geosynchronous orbit
pearlite
wet corrosion/electrochemical corrosion
22. 100khz
AM
stress corrosion
Geosynchronous orbit
thermoset rubbers
23. Soft - ductile
Magnetic inspection
Low carbon steel
ferrite
Concrete
24. 100GHZ+
thermoplastic rubbers
extrusion
thermosetting polymers
Satellite
25. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Medium earth orbit
Bernoulli's principle high speed
shear stress
Magnetic inspection
26. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
Transistor
modulation
tungsten alloy
27. 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.
open die forging
Impressed current
Brushes
Radio antenna length
28. Good wear - case hardening. ball bearings
DC motor
Kinetic energy
chromium alloy
Dry corrosion
29. Squeezing of the hot metal between two shaped dies excess is cut off
if 100% efficient
closed die forging
rectifier
malleable cast iron
30. Difference/original
fibre optic cable
Uniform attack
chromium alloy
Strain
31. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Low earth orbit
Commutator
Ultrasonic inspection
grey cast iron
32. Ma/vr
Impressed current
n
thermoplastic rubbers
high carbon steel
33. 1/2Xmass X velocity X velocity
sin
Kinetic energy
Commutator
Bernoulli's principle high speed
34. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
n
thermosetting polymers
stress
Laminated glass
35. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Hardening
sin
Strain
n
36. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
grey cast iron
n%
Tempering
Low carbon steel
37. X<1% silicon no graphite - has carbon/carbide. very brittle
white cast iron
wet corrosion/electrochemical corrosion
Bandwidth
cos
38. Hard - brittle
stress
thermosetting polymers
elastomers=what
cementite
39. Low pressure
40. A strong hard building material composed of sand and gravel and cement and water
cos
bending stress
AM
Concrete
41. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
Radiography
medium carbon steel
cold rolling
Attenuation
42. Resulting from exposure to damp environments and liquids.
Twisted pair cable
ultra- high carbon steel
wet corrosion/electrochemical corrosion
thermoplastic rubbers
43. 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
manganese and silicon alloy
Satellite
Dye penetration test
AC motor
44. Produces; harder - stronger and less ductile product
drop forging
high carbon steel
cementite
cold rolling
45. 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
Commutator
mild steel
thermosoftening polymer
nickel alloy
46. Good high temp wear - tools
ultra- high carbon steel
tungsten alloy
Normalising
nickel alloy
47. Good toughness and fatigue. high strength structures
Kinetic energy
Radio antenna length
nickel alloy
Bandwidth
48. Ma/vr x 100/1
cementite
n%
stress corrosion
Tempered Glass
49. x<0.15% carbon. ferrite. good for cold working - rolling sheets
Low carbon steel
bending stress
mild steel
Tempered Glass
50. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
nickel alloy
DC motor
open die forging
Satellite