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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. Produces; harder - stronger and less ductile product
cold rolling
drop forging
Commutator
Twisted pair cable
2. 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
open die forging
Annealing
pearlite
Commutator
3. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Magnetic inspection
Strain
Low carbon steel
Potential energy
4. A method of transmitting signals by changing the amplitude of a waves
AM
Magnetic inspection
Amplitude modulation
elastomers=what
5. The quantity of information that can be transmitted through a communication medium in a given amount of time.
elastomers=what
Bandwidth
extrusion
fibre optic cable
6. The greater the sulphur the harder the rubber to stretch
Dry corrosion
Dye penetration test
Satellite
thermoset rubbers
7. 100khz
AM
Potential energy
Annealing
Frequency modulation
8. Area load piston/area of effort piston
Dry corrosion
VR
open die forging
thermosoftening polymer
9. Field winding parallel to armature winding. Bad for direct coupling
DC motor
stress
ferrite
shear stress
10. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Attenuation
Low carbon steel
Dye penetration test
Amplitude modulation
11. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Concrete
cementite
Annealing
high carbon steel
12. Horizontal
Hardening
Mobiles
cos
Ultrasonic inspection
13. Load/area
n
High frequency
Dry corrosion
stress
14. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
sin
open die forging
VR
Satellite
15. 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.
open die forging
Dye penetration test
manganese and silicon alloy
Impressed current
16. Low pressure
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17. 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
tungsten alloy
cold rolling
Geosynchronous orbit
18. Squeezing of the hot metal between two shaped dies excess is cut off
Twisted pair cable
bending stress
Impressed current
closed die forging
19. 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
Sacrifical anode
DC motor
cold rolling
Kinetic energy
20. 1GHZ
Mobiles
n%
thermosoftening polymer
medium carbon steel
21. Rubbers
elastomers=what
Potential energy
Radiography
thermosetting polymers
22. 100GHZ+
stress
cos
Medium earth orbit
Satellite
23. Good wear - case hardening. ball bearings
chromium alloy
shear stress
Annealing
manganese and silicon alloy
24. Between 2000-35 -700km above the earth's surface.
manganese and silicon alloy
chromium alloy
drop forging
Medium earth orbit
25. Allows for another signal to be sent along the carrier signal
VR
grey cast iron
medium carbon steel
modulation
26. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
stress corrosion
Medium earth orbit
nodular graphite cast iron
thermosetting polymers
27. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Hardening
grey cast iron
FM
Sacrifical anode
28. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
Satellite
Commutator
spalling concrete
29. 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
Impressed current
Frequency modulation
Strain
Transistor
30. Elongation of grain flow in direction of rolling
elastomers=what
hot rolling
Mobiles
white cast iron
31. Hard - brittle
cementite
thermoplastic rubbers
bending stress
Hardening
32. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
rectifier
Ultrasonic inspection
Radio antenna length
Amplitude modulation
33. Can be reflected of the ionosphere - 3 to 30 megahertz
Kinetic energy
Strain
High frequency
closed die forging
34. X<1% silicon no graphite - has carbon/carbide. very brittle
Normalising
white cast iron
Hardening
Commutator
35. Forming of metal by compressive force above recrystallization point.
forging
spalling concrete
Commutator
Frequency modulation
36. 1%<X<2% carbon. more cementite - used for files
ultra- high carbon steel
grey cast iron
Geosynchronous orbit
Normalising
37. A method of transmitting signals by changing the frequency of a wave
forging properties
malleable cast iron
Frequency modulation
pearlite
38. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
cold rolling
nodular graphite cast iron
wet corrosion/electrochemical corrosion
Medium earth orbit
39. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
cos
Concrete
Tempering
elastomers=what
40. MA=VR
cold rolling
Mobiles
if 100% efficient
Geosynchronous orbit
41. Ma/vr x 100/1
n%
Ultrasonic inspection
Sacrifical anode
Medium earth orbit
42. Area parallel to force
thermosoftening polymer
Amplitude modulation
Impressed current
shear stress
43. A cable made of optical fibers that can transmit large amounts of information at the speed of light
Transistor
Uniform attack
fibre optic cable
Dry corrosion
44. When upper die is dropped on bottom
Bernoulli's principle high speed
cementite
stress corrosion
drop forging
45. Usually used together - strengthening and toughness
Satellite
drop forging
if 100% efficient
manganese and silicon alloy
46. 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
sin
Geosynchronous orbit
ultra- high carbon steel
nodular graphite cast iron
47. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
VR
forging
spalling concrete
Concrete
48. Results from the changing anode and cathode regions over the entire surface
tungsten alloy
Uniform attack
Fluorescent test
Commutator
49. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
High frequency
Ultrasonic inspection
Impressed current
50. Maximum bending moments X distance to natural axis/ second moment of area
Brushes
Fluorescent test
bending stress
Transistor