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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. Field winding parallel to armature winding. Bad for direct coupling
forging
Ultrasonic inspection
DC motor
thermosetting polymers
2. 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
Annealing
Concrete
Geosynchronous orbit
n%
3. Good wear - case hardening. ball bearings
stress
chromium alloy
spalling concrete
Twisted pair cable
4. Ma/vr x 100/1
pearlite
Amplitude modulation
cold rolling
n%
5. MA=VR
Low earth orbit
sin
DC motor
if 100% efficient
6. Ma/vr
High frequency
n
Potential energy
grey cast iron
7. Hard - strong
VR
spalling concrete
closed die forging
pearlite
8. Load/effort
Potential energy
n%
Tempering
MA
9. An orbit less than 1 -500 km. above the Earth's surface.
Low earth orbit
stress corrosion
sin
ultra- high carbon steel
10. Produces; harder - stronger and less ductile product
modulation
cold rolling
cos
Commutator
11. Soft - ductile
fibre optic cable
ferrite
Dry corrosion
Geosynchronous orbit
12. Squeezing of the hot metal between two shaped dies excess is cut off
Strain
FM
Low earth orbit
closed die forging
13. Horizontal
Attenuation
tungsten alloy
thermosetting polymers
cos
14. 10MHZ
grey cast iron
if 100% efficient
High frequency
FM
15. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
modulation
Radio antenna length
Normalising
16. High pressure
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17. 100khz
bending stress
mild steel
AM
Uniform attack
18. Supply current to the rotating commutator from an external source
Brushes
Amplitude modulation
thermosoftening polymer
bending stress
19. Maximum bending moments X distance to natural axis/ second moment of area
Laminated glass
bending stress
High frequency
Radio antenna length
20. 1GHZ
n
Ultrasonic inspection
FM
Mobiles
21. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
modulation
grey cast iron
malleable cast iron
fibre optic cable
22. 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
Tempering
Radiography
Bernoulli's principle high speed
Sacrifical anode
23. Elongation of grain flow in direction of rolling
hot rolling
Frequency modulation
if 100% efficient
Hardening
24. Resulting from combined effect of stresses set up within the metal
malleable cast iron
AC motor
stress corrosion
Annealing
25. A cable made of optical fibers that can transmit large amounts of information at the speed of light
fibre optic cable
pearlite
open die forging
ultra- high carbon steel
26. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Radiography
Fluorescent test
malleable cast iron
Transistor
27. Forming of metal by compressive force above recrystallization point.
forging
manganese and silicon alloy
spalling concrete
nickel alloy
28. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
thermosetting polymers
closed die forging
Radio antenna length
hot rolling
29. 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
Radio antenna length
Tempering
Dye penetration test
if 100% efficient
30. AC to DC
Sacrifical anode
DC motor
open die forging
rectifier
31. 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
ferrite
Transistor
high carbon steel
forging
32. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
medium carbon steel
manganese and silicon alloy
n%
Potential energy
33. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
mild steel
chromium alloy
spalling concrete
rectifier
34. 1/4 of the wavelength (higher better)
Geosynchronous orbit
thermoset rubbers
spalling concrete
Radio antenna length
35. 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
Kinetic energy
Bernoulli's principle low speed
mild steel
AC motor
36. Difference/original
Impressed current
FM
Potential energy
Strain
37. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Tempering
grey cast iron
Medium earth orbit
Bandwidth
38. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
FM
Ultrasonic inspection
open die forging
Normalising
39. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Ultrasonic inspection
MA
medium carbon steel
Bernoulli's principle high speed
40. 1%<X<2% carbon. more cementite - used for files
thermosoftening polymer
cementite
Strain
ultra- high carbon steel
41. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermoset rubbers
bending stress
hot rolling
thermosoftening polymer
42. 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
Commutator
Annealing
Potential energy
Frequency modulation
43. Load/area
Hardening
stress
thermoset rubbers
AC motor
44. 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
fibre optic cable
Transistor
Fluorescent test
stress
45. Good high temp wear - tools
Strain
tungsten alloy
thermoset rubbers
ultra- high carbon steel
46. Allows for another signal to be sent along the carrier signal
modulation
if 100% efficient
tungsten alloy
Radiography
47. Vertical
pearlite
Uniform attack
sin
mild steel
48. 100GHZ+
bending stress
Low earth orbit
Satellite
Annealing
49. X<1% silicon no graphite - has carbon/carbide. very brittle
Radio antenna length
fibre optic cable
Low carbon steel
white cast iron
50. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
modulation
mild steel
pearlite
Magnetic inspection