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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. Low pressure
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2. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Ultrasonic inspection
Amplitude modulation
drop forging
if 100% efficient
3. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
Low earth orbit
Sacrifical anode
Strain
4. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
grey cast iron
rectifier
white cast iron
5. x<0.15% carbon. ferrite. good for cold working - rolling sheets
spalling concrete
Impressed current
shear stress
Low carbon steel
6. 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.
Fluorescent test
malleable cast iron
Radiography
Twisted pair cable
7. 100GHZ+
thermoplastic rubbers
Satellite
elastomers=what
forging properties
8. 10MHZ
FM
extrusion
nickel alloy
Bernoulli's principle low speed
9. 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
fibre optic cable
high carbon steel
Annealing
Uniform attack
10. Forming of metal by compressive force above recrystallization point.
forging properties
Mobiles
chromium alloy
forging
11. Horizontal
Strain
cos
Medium earth orbit
hot rolling
12. 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
grey cast iron
thermoplastic rubbers
Commutator
Geosynchronous orbit
13. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
open die forging
Tempered Glass
Geosynchronous orbit
14. 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
Fluorescent test
Sacrifical anode
Strain
Potential energy
15. Usually used together - strengthening and toughness
modulation
Twisted pair cable
thermosetting polymers
manganese and silicon alloy
16. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
medium carbon steel
Concrete
Tempered Glass
Low earth orbit
17. High pressure
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18. Difference/original
Tempering
Strain
Amplitude modulation
Frequency modulation
19. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
thermosetting polymers
drop forging
Dry corrosion
thermoplastic rubbers
20. Hard - brittle
ultra- high carbon steel
cementite
FM
Low earth orbit
21. A method of transmitting signals by changing the amplitude of a waves
Uniform attack
Amplitude modulation
closed die forging
High frequency
22. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
high carbon steel
Frequency modulation
modulation
stress
23. Resulting from combined effect of stresses set up within the metal
stress corrosion
Potential energy
n
Kinetic energy
24. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
nodular graphite cast iron
Sacrifical anode
grey cast iron
Radio antenna length
25. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
thermosetting polymers
Attenuation
forging properties
bending stress
26. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Hardening
drop forging
Bernoulli's principle high speed
pearlite
27. Field winding parallel to armature winding. Bad for direct coupling
DC motor
n
Mobiles
chromium alloy
28. Area load piston/area of effort piston
VR
manganese and silicon alloy
tungsten alloy
grey cast iron
29. An orbit less than 1 -500 km. above the Earth's surface.
open die forging
Low earth orbit
Normalising
stress corrosion
30. Vertical
Hardening
Satellite
stress
sin
31. Elongation of grain flow in direction of rolling
Impressed current
medium carbon steel
Potential energy
hot rolling
32. 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.
Dye penetration test
Dry corrosion
Impressed current
Ultrasonic inspection
33. Supply current to the rotating commutator from an external source
Bernoulli's principle low speed
stress
Brushes
Low earth orbit
34. Mass X gravity X height
Potential energy
hot rolling
Radiography
Brushes
35. Rubbers
Twisted pair cable
elastomers=what
mild steel
fibre optic cable
36. Results from the changing anode and cathode regions over the entire surface
Transistor
Satellite
Uniform attack
forging
37. 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
DC motor
Bernoulli's principle high speed
cos
Transistor
38. Area parallel to force
DC motor
shear stress
Twisted pair cable
Medium earth orbit
39. Being forced - under pressure - through a hole like toothpaste. either hot or cold
DC motor
stress
tungsten alloy
extrusion
40. Soaked cast iron at 870c for long time then cooled slow
FM
hot rolling
Strain
malleable cast iron
41. Better properties that would come from machining
tungsten alloy
forging properties
ferrite
Frequency modulation
42. These have weaker secondary bonds which allow the stretching
Dry corrosion
pearlite
thermoplastic rubbers
sin
43. 1%<X<2% carbon. more cementite - used for files
Dye penetration test
ultra- high carbon steel
shear stress
bending stress
44. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
Fluorescent test
n
manganese and silicon alloy
45. MA=VR
if 100% efficient
Normalising
thermoplastic rubbers
Laminated glass
46. Produces; harder - stronger and less ductile product
Radio antenna length
cold rolling
thermoset rubbers
n
47. Hard - strong
Dry corrosion
Mobiles
closed die forging
pearlite
48. A method of transmitting signals by changing the frequency of a wave
Frequency modulation
spalling concrete
ferrite
Medium earth orbit
49. Ma/vr
high carbon steel
open die forging
n
AC motor
50. The greater the sulphur the harder the rubber to stretch
manganese and silicon alloy
Laminated glass
wet corrosion/electrochemical corrosion
thermoset rubbers