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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. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
Medium earth orbit
drop forging
cold rolling
2. 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
Commutator
shear stress
Fluorescent test
Transistor
3. Field winding parallel to armature winding. Bad for direct coupling
DC motor
mild steel
manganese and silicon alloy
AM
4. 10MHZ
cold rolling
FM
Magnetic inspection
tungsten alloy
5. MA=VR
Dye penetration test
Bernoulli's principle high speed
Strain
if 100% efficient
6. Hard - brittle
cementite
tungsten alloy
Kinetic energy
high carbon steel
7. Area load piston/area of effort piston
Uniform attack
Radiography
pearlite
VR
8. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Amplitude modulation
Radiography
thermoset rubbers
Sacrifical anode
9. Squeezing of the hot metal between two shaped dies excess is cut off
Amplitude modulation
Geosynchronous orbit
if 100% efficient
closed die forging
10. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Medium earth orbit
Hardening
stress
Geosynchronous orbit
11. 100GHZ+
Tempered Glass
Satellite
shear stress
drop forging
12. 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
DC motor
forging
Low carbon steel
13. A method of transmitting signals by changing the frequency of a wave
Magnetic inspection
Bernoulli's principle high speed
Frequency modulation
Sacrifical anode
14. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
if 100% efficient
Impressed current
High frequency
15. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
mild steel
wet corrosion/electrochemical corrosion
stress
grey cast iron
16. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Impressed current
forging properties
extrusion
closed die forging
17. Supply current to the rotating commutator from an external source
forging
Magnetic inspection
stress corrosion
Brushes
18. Resulting from combined effect of stresses set up within the metal
stress corrosion
Concrete
Bernoulli's principle low speed
medium carbon steel
19. 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.
Sacrifical anode
high carbon steel
nodular graphite cast iron
Twisted pair cable
20. Hard - strong
nickel alloy
pearlite
Potential energy
AM
21. Area parallel to force
MA
n%
shear stress
Uniform attack
22. Horizontal
cementite
cos
Ultrasonic inspection
Strain
23. X<1% silicon no graphite - has carbon/carbide. very brittle
malleable cast iron
white cast iron
open die forging
hot rolling
24. A strong hard building material composed of sand and gravel and cement and water
wet corrosion/electrochemical corrosion
Concrete
ferrite
high carbon steel
25. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
Amplitude modulation
manganese and silicon alloy
Bernoulli's principle low speed
medium carbon steel
26. Can be reflected of the ionosphere - 3 to 30 megahertz
Fluorescent test
stress
High frequency
Radio antenna length
27. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
Kinetic energy
high carbon steel
Laminated glass
thermosetting polymers
28. Soft - ductile
pearlite
closed die forging
nodular graphite cast iron
ferrite
29. Good wear - case hardening. ball bearings
forging
chromium alloy
rectifier
cold rolling
30. Load/area
elastomers=what
stress
Fluorescent test
pearlite
31. 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
medium carbon steel
Frequency modulation
ultra- high carbon steel
32. Resulting from exposure to damp environments and liquids.
wet corrosion/electrochemical corrosion
VR
cementite
Twisted pair cable
33. A cable made of optical fibers that can transmit large amounts of information at the speed of light
VR
fibre optic cable
Bandwidth
wet corrosion/electrochemical corrosion
34. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
Attenuation
bending stress
Potential energy
AM
35. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
white cast iron
fibre optic cable
cos
36. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
Magnetic inspection
malleable cast iron
hot rolling
37. Ma/vr x 100/1
Potential energy
n%
Uniform attack
white cast iron
38. 100khz
AM
Bernoulli's principle high speed
high carbon steel
VR
39. These have weaker secondary bonds which allow the stretching
extrusion
Low carbon steel
thermoplastic rubbers
AC motor
40. Elongation of grain flow in direction of rolling
Dye penetration test
Uniform attack
hot rolling
white cast iron
41. AC to DC
VR
rectifier
n
thermoset rubbers
42. Usually used together - strengthening and toughness
Satellite
manganese and silicon alloy
Uniform attack
medium carbon steel
43. Rubbers
elastomers=what
closed die forging
VR
malleable cast iron
44. High pressure
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45. Vertical
sin
Low carbon steel
spalling concrete
thermosoftening polymer
46. Good high temp wear - tools
nodular graphite cast iron
fibre optic cable
Sacrifical anode
tungsten alloy
47. 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
Uniform attack
stress
Sacrifical anode
grey cast iron
48. 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
malleable cast iron
AC motor
fibre optic cable
49. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Frequency modulation
hot rolling
Twisted pair cable
high carbon steel
50. When upper die is dropped on bottom
extrusion
Kinetic energy
forging properties
drop forging