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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. Soft - ductile
Bernoulli's principle high speed
Concrete
ferrite
Dye penetration test
2. Usually used together - strengthening and toughness
manganese and silicon alloy
fibre optic cable
pearlite
drop forging
3. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
thermosetting polymers
Transistor
Hardening
Uniform attack
4. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Sacrifical anode
Laminated glass
Potential energy
Low carbon steel
5. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
high carbon steel
grey cast iron
medium carbon steel
Bernoulli's principle low speed
6. A method of transmitting signals by changing the frequency of a wave
High frequency
Uniform attack
stress
Frequency modulation
7. 1/2Xmass X velocity X velocity
Laminated glass
Kinetic energy
Geosynchronous orbit
pearlite
8. Produces; harder - stronger and less ductile product
Normalising
stress corrosion
Frequency modulation
cold rolling
9. Solid at room temp - weak secondary bonds. can be reheated multiply times.
n%
thermosoftening polymer
stress
manganese and silicon alloy
10. Ma/vr x 100/1
Geosynchronous orbit
n%
forging properties
Low carbon steel
11. 100khz
VR
AM
stress corrosion
Radiography
12. An orbit less than 1 -500 km. above the Earth's surface.
stress corrosion
Amplitude modulation
Low earth orbit
Normalising
13. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
medium carbon steel
Low carbon steel
Frequency modulation
sin
14. High pressure
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15. Good high temp wear - tools
cementite
nickel alloy
tungsten alloy
chromium alloy
16. Supply current to the rotating commutator from an external source
Low carbon steel
Radio antenna length
Potential energy
Brushes
17. Mass X gravity X height
Transistor
Potential energy
thermoplastic rubbers
modulation
18. Area load piston/area of effort piston
Tempering
AC motor
Geosynchronous orbit
VR
19. When upper die is dropped on bottom
nodular graphite cast iron
drop forging
stress
bending stress
20. Good toughness and fatigue. high strength structures
Dry corrosion
nickel alloy
Bernoulli's principle low speed
Commutator
21. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
n
Hardening
nickel alloy
22. 100GHZ+
grey cast iron
closed die forging
stress
Satellite
23. Can be reflected of the ionosphere - 3 to 30 megahertz
cold rolling
High frequency
mild steel
shear stress
24. Rubbers
Ultrasonic inspection
medium carbon steel
Potential energy
elastomers=what
25. A strong hard building material composed of sand and gravel and cement and water
Concrete
white cast iron
Strain
Magnetic inspection
26. MA=VR
ferrite
Uniform attack
Satellite
if 100% efficient
27. A method of transmitting signals by changing the amplitude of a waves
Geosynchronous orbit
Bandwidth
Amplitude modulation
cementite
28. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
pearlite
Ultrasonic inspection
mild steel
Low carbon steel
29. Ma/vr
stress
n
Normalising
AC motor
30. Difference/original
Dry corrosion
Commutator
AM
Strain
31. Maximum bending moments X distance to natural axis/ second moment of area
MA
n
Sacrifical anode
bending stress
32. These have weaker secondary bonds which allow the stretching
Dye penetration test
modulation
Hardening
thermoplastic rubbers
33. Horizontal
medium carbon steel
cos
closed die forging
VR
34. Resulting from exposure to damp environments and liquids.
spalling concrete
wet corrosion/electrochemical corrosion
n
High frequency
35. X<1% silicon no graphite - has carbon/carbide. very brittle
Hardening
Laminated glass
if 100% efficient
white cast iron
36. 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
rectifier
bending stress
Strain
37. 1GHZ
thermosetting polymers
cold rolling
Mobiles
open die forging
38. Field winding parallel to armature winding. Bad for direct coupling
forging properties
DC motor
Hardening
fibre optic cable
39. 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
cold rolling
AC motor
Geosynchronous orbit
thermoset rubbers
40. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Impressed current
Attenuation
shear stress
Potential energy
41. 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
Tempered Glass
n
stress corrosion
42. Allows for another signal to be sent along the carrier signal
modulation
Medium earth orbit
Low carbon steel
fibre optic cable
43. The greater the sulphur the harder the rubber to stretch
rectifier
thermoset rubbers
DC motor
bending stress
44. 1%<X<2% carbon. more cementite - used for files
Normalising
n
ultra- high carbon steel
bending stress
45. Squeezing of the hot metal between two shaped dies excess is cut off
Bernoulli's principle low speed
Tempering
closed die forging
Bernoulli's principle high speed
46. Load/effort
stress
AC motor
Tempering
MA
47. Better properties that would come from machining
cos
thermoplastic rubbers
forging properties
manganese and silicon alloy
48. 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.
forging
Medium earth orbit
drop forging
Impressed current
49. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Frequency modulation
Tempering
Amplitude modulation
manganese and silicon alloy
50. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
Potential energy
Frequency modulation
elastomers=what