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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. 100khz
AM
Sacrifical anode
Uniform attack
Mobiles
2. AC to DC
rectifier
Bernoulli's principle high speed
shear stress
Brushes
3. Horizontal
cos
cementite
stress
Kinetic energy
4. Rubbers
nodular graphite cast iron
Dye penetration test
rectifier
elastomers=what
5. 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
forging
mild steel
Ultrasonic inspection
Commutator
6. 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.
stress
thermoset rubbers
forging properties
Impressed current
7. Forming of metal by compressive force above recrystallization point.
nickel alloy
bending stress
forging
extrusion
8. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
manganese and silicon alloy
n%
medium carbon steel
High frequency
9. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
mild steel
Dye penetration test
tungsten alloy
grey cast iron
10. Supply current to the rotating commutator from an external source
Mobiles
Brushes
Annealing
VR
11. Area parallel to force
thermosetting polymers
Brushes
shear stress
VR
12. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Ultrasonic inspection
Laminated glass
nickel alloy
drop forging
13. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
chromium alloy
forging
thermosetting polymers
mild steel
14. Low pressure
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15. Allows for another signal to be sent along the carrier signal
if 100% efficient
Radiography
Commutator
modulation
16. Soft - ductile
ultra- high carbon steel
Dye penetration test
n%
ferrite
17. 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
Strain
thermoset rubbers
Dye penetration test
FM
18. Hard - strong
Commutator
elastomers=what
cementite
pearlite
19. A method of transmitting signals by changing the amplitude of a waves
manganese and silicon alloy
n%
Amplitude modulation
Concrete
20. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
Kinetic energy
Low carbon steel
Transistor
nodular graphite cast iron
21. 1%<X<2% carbon. more cementite - used for files
n%
Twisted pair cable
DC motor
ultra- high carbon steel
22. Between 2000-35 -700km above the earth's surface.
Dye penetration test
Bandwidth
Medium earth orbit
grey cast iron
23. Field winding parallel to armature winding. Bad for direct coupling
DC motor
Normalising
n
fibre optic cable
24. Usually used together - strengthening and toughness
FM
High frequency
manganese and silicon alloy
Low earth orbit
25. 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
Geosynchronous orbit
Bernoulli's principle high speed
Fluorescent test
Mobiles
26. Ma/vr x 100/1
open die forging
n%
AC motor
Ultrasonic inspection
27. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermosoftening polymer
Transistor
Potential energy
Twisted pair cable
28. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
tungsten alloy
forging properties
open die forging
ferrite
29. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Tempered Glass
Twisted pair cable
if 100% efficient
Bandwidth
30. Difference/original
Radio antenna length
cementite
Strain
if 100% efficient
31. 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
Geosynchronous orbit
FM
forging
AC motor
32. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Radiography
Low carbon steel
Fluorescent test
Strain
33. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
manganese and silicon alloy
Low carbon steel
sin
34. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Hardening
manganese and silicon alloy
bending stress
mild steel
35. Produces; harder - stronger and less ductile product
cold rolling
AM
Ultrasonic inspection
Amplitude modulation
36. 1GHZ
Laminated glass
Mobiles
High frequency
stress
37. 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
Normalising
white cast iron
extrusion
Fluorescent test
38. Squeezing of the hot metal between two shaped dies excess is cut off
stress
closed die forging
grey cast iron
bending stress
39. A method of transmitting signals by changing the frequency of a wave
manganese and silicon alloy
Frequency modulation
Hardening
wet corrosion/electrochemical corrosion
40. Us a metal that is more reactive. It is connect to another metal and corrodes instead of the other metal. the Anode is replaced periodically
Satellite
Bernoulli's principle low speed
Sacrifical anode
AC motor
41. Resulting from exposure to damp environments and liquids.
pearlite
hot rolling
wet corrosion/electrochemical corrosion
nodular graphite cast iron
42. MA=VR
Uniform attack
if 100% efficient
Radiography
Tempered Glass
43. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Magnetic inspection
Ultrasonic inspection
FM
fibre optic cable
44. 10MHZ
white cast iron
FM
Satellite
drop forging
45. Load/effort
Normalising
MA
cos
AM
46. Hard - brittle
Attenuation
shear stress
cementite
Ultrasonic inspection
47. Maximum bending moments X distance to natural axis/ second moment of area
thermosoftening polymer
n
bending stress
MA
48. 100GHZ+
grey cast iron
Dye penetration test
elastomers=what
Satellite
49. 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
mild steel
Transistor
Mobiles
if 100% efficient
50. Good wear - case hardening. ball bearings
Concrete
forging
Potential energy
chromium alloy