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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. A cable made of optical fibers that can transmit large amounts of information at the speed of light
fibre optic cable
Bandwidth
MA
AC motor
2. Usually used together - strengthening and toughness
manganese and silicon alloy
MA
Magnetic inspection
Normalising
3. AC to DC
rectifier
High frequency
Dye penetration test
sin
4. Forming of metal by compressive force above recrystallization point.
chromium alloy
thermosoftening polymer
Bernoulli's principle high speed
forging
5. Maximum bending moments X distance to natural axis/ second moment of area
bending stress
Concrete
wet corrosion/electrochemical corrosion
stress corrosion
6. 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
Tempering
ferrite
Frequency modulation
7. Solid at room temp - weak secondary bonds. can be reheated multiply times.
Hardening
n%
wet corrosion/electrochemical corrosion
thermosoftening polymer
8. 1/2Xmass X velocity X velocity
hot rolling
Transistor
Kinetic energy
high carbon steel
9. Field winding parallel to armature winding. Bad for direct coupling
DC motor
grey cast iron
Kinetic energy
Laminated glass
10. Area load piston/area of effort piston
ultra- high carbon steel
VR
n
Radiography
11. 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
n
Dye penetration test
fibre optic cable
12. Between 2000-35 -700km above the earth's surface.
Medium earth orbit
Transistor
Commutator
Attenuation
13. Better properties that would come from machining
elastomers=what
Low earth orbit
forging properties
fibre optic cable
14. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
tungsten alloy
Twisted pair cable
Normalising
rectifier
15. x<0.15% carbon. ferrite. good for cold working - rolling sheets
Low carbon steel
Uniform attack
Hardening
Sacrifical anode
16. 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
cos
tungsten alloy
spalling concrete
Geosynchronous orbit
17. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
forging
wet corrosion/electrochemical corrosion
drop forging
18. Hard - strong
pearlite
Fluorescent test
wet corrosion/electrochemical corrosion
drop forging
19. Difference/original
AC motor
thermoplastic rubbers
Strain
forging
20. When upper die is dropped on bottom
drop forging
cos
closed die forging
nickel alloy
21. Produces; harder - stronger and less ductile product
DC motor
AM
cold rolling
cos
22. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Fluorescent test
white cast iron
manganese and silicon alloy
Ultrasonic inspection
23. Resulting from combined effect of stresses set up within the metal
stress corrosion
Normalising
Transistor
elastomers=what
24. 1%<X<2% carbon. more cementite - used for files
ultra- high carbon steel
cos
cementite
Bernoulli's principle low speed
25. These have weaker secondary bonds which allow the stretching
thermoplastic rubbers
ferrite
drop forging
extrusion
26. Ma/vr x 100/1
Tempering
Strain
fibre optic cable
n%
27. A method of transmitting signals by changing the amplitude of a waves
white cast iron
thermosetting polymers
hot rolling
Amplitude modulation
28. Good high temp wear - tools
tungsten alloy
n%
FM
modulation
29. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Attenuation
chromium alloy
AC motor
Tempered Glass
30. Ma/vr
AM
n
spalling concrete
Concrete
31. Soaked cast iron at 870c for long time then cooled slow
Hardening
cold rolling
Geosynchronous orbit
malleable cast iron
32. X<1% silicon no graphite - has carbon/carbide. very brittle
white cast iron
Bandwidth
stress corrosion
AC motor
33. Load/effort
high carbon steel
MA
cos
tungsten alloy
34. Soft - ductile
forging
cementite
nickel alloy
ferrite
35. 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
thermoplastic rubbers
wet corrosion/electrochemical corrosion
forging
Fluorescent test
36. Area parallel to force
drop forging
wet corrosion/electrochemical corrosion
shear stress
modulation
37. Supply current to the rotating commutator from an external source
High frequency
AC motor
Satellite
Brushes
38. MA=VR
stress
thermoplastic rubbers
Frequency modulation
if 100% efficient
39. Results from the changing anode and cathode regions over the entire surface
cos
Attenuation
Uniform attack
white cast iron
40. Squeezing of the hot metal between two shaped dies excess is cut off
Fluorescent test
high carbon steel
Radio antenna length
closed die forging
41. 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.
tungsten alloy
Impressed current
ferrite
High frequency
42. High pressure
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43. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
Dry corrosion
mild steel
grey cast iron
Impressed current
44. 1/4 of the wavelength (higher better)
Radio antenna length
DC motor
Bernoulli's principle low speed
pearlite
45. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Mobiles
forging properties
stress
grey cast iron
46. Elongation of grain flow in direction of rolling
Kinetic energy
High frequency
Fluorescent test
hot rolling
47. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Fluorescent test
extrusion
bending stress
Medium earth orbit
48. 100khz
cold rolling
AM
Radiography
chromium alloy
49. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Dry corrosion
cementite
thermoplastic rubbers
Radiography
50. Good wear - case hardening. ball bearings
chromium alloy
forging
Low carbon steel
thermosoftening polymer