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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. Usually used together - strengthening and toughness
extrusion
thermosetting polymers
thermoset rubbers
manganese and silicon alloy
2. Hard - strong
if 100% efficient
Low earth orbit
shear stress
pearlite
3. Hard - brittle
n%
cementite
VR
sin
4. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
drop forging
open die forging
Ultrasonic inspection
thermosetting polymers
5. MA=VR
chromium alloy
Medium earth orbit
if 100% efficient
AM
6. Forming of metal by compressive force above recrystallization point.
ultra- high carbon steel
closed die forging
Low carbon steel
forging
7. Field winding parallel to armature winding. Bad for direct coupling
Commutator
thermoplastic rubbers
DC motor
Normalising
8. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Annealing
medium carbon steel
grey cast iron
ferrite
9. A method of transmitting signals by changing the amplitude of a waves
high carbon steel
medium carbon steel
ultra- high carbon steel
Amplitude modulation
10. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
AM
Magnetic inspection
Satellite
white cast iron
11. Can be reflected of the ionosphere - 3 to 30 megahertz
spalling concrete
High frequency
bending stress
DC motor
12. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Normalising
manganese and silicon alloy
Potential energy
Strain
13. Elongation of grain flow in direction of rolling
Low earth orbit
n%
hot rolling
Hardening
14. Good toughness and fatigue. high strength structures
Fluorescent test
Geosynchronous orbit
Concrete
nickel alloy
15. 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
cementite
Geosynchronous orbit
Sacrifical anode
hot rolling
16. Vertical
sin
closed die forging
Strain
Magnetic inspection
17. Area parallel to force
shear stress
Tempered Glass
drop forging
rectifier
18. 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
Mobiles
Commutator
AC motor
thermosoftening polymer
19. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Attenuation
Satellite
Dry corrosion
Annealing
20. Supply current to the rotating commutator from an external source
Brushes
DC motor
Low carbon steel
n%
21. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
Laminated glass
Fluorescent test
Amplitude modulation
22. An orbit less than 1 -500 km. above the Earth's surface.
mild steel
Low earth orbit
Annealing
stress corrosion
23. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
FM
thermoset rubbers
Ultrasonic inspection
DC motor
24. The greater the sulphur the harder the rubber to stretch
AC motor
thermoset rubbers
Mobiles
thermosetting polymers
25. Resulting from combined effect of stresses set up within the metal
rectifier
stress corrosion
extrusion
drop forging
26. A cable made of optical fibers that can transmit large amounts of information at the speed of light
fibre optic cable
Geosynchronous orbit
Bernoulli's principle high speed
Frequency modulation
27. These have weaker secondary bonds which allow the stretching
thermoplastic rubbers
Magnetic inspection
Laminated glass
Uniform attack
28. 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
Transistor
tungsten alloy
Mobiles
n%
29. Load/area
stress
white cast iron
sin
grey cast iron
30. Between 2000-35 -700km above the earth's surface.
thermosetting polymers
High frequency
cold rolling
Medium earth orbit
31. Squeezing of the hot metal between two shaped dies excess is cut off
closed die forging
Concrete
AC motor
extrusion
32. 1GHZ
fibre optic cable
medium carbon steel
Tempered Glass
Mobiles
33. 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
Amplitude modulation
Dry corrosion
Brushes
AC motor
34. X<1% silicon no graphite - has carbon/carbide. very brittle
rectifier
Amplitude modulation
n%
white cast iron
35. Being forced - under pressure - through a hole like toothpaste. either hot or cold
elastomers=what
Bandwidth
extrusion
Annealing
36. Good wear - case hardening. ball bearings
Laminated glass
Tempering
chromium alloy
bending stress
37. 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
Transistor
Mobiles
Bernoulli's principle low speed
Sacrifical anode
38. Results from the changing anode and cathode regions over the entire surface
Magnetic inspection
Uniform attack
nickel alloy
rectifier
39. x<0.15% carbon. ferrite. good for cold working - rolling sheets
nickel alloy
wet corrosion/electrochemical corrosion
Frequency modulation
Low carbon steel
40. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Bandwidth
forging
Potential energy
ultra- high carbon steel
41. Soaked cast iron at 870c for long time then cooled slow
Dry corrosion
FM
malleable cast iron
Concrete
42. A method of transmitting signals by changing the frequency of a wave
Geosynchronous orbit
forging properties
Radio antenna length
Frequency modulation
43. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
malleable cast iron
chromium alloy
modulation
nodular graphite cast iron
44. Load/effort
Strain
bending stress
Bernoulli's principle low speed
MA
45. Horizontal
spalling concrete
Tempering
cos
grey cast iron
46. Produces; harder - stronger and less ductile product
MA
n%
thermoplastic rubbers
cold rolling
47. Ma/vr x 100/1
n%
Tempered Glass
thermosoftening polymer
Radio antenna length
48. Low pressure
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49. High pressure
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50. Difference/original
Bernoulli's principle low speed
Strain
wet corrosion/electrochemical corrosion
High frequency