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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. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
n
Bandwidth
spalling concrete
DC motor
2. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
Strain
Radiography
tungsten alloy
grey cast iron
3. Supply current to the rotating commutator from an external source
Brushes
sin
nickel alloy
Dry corrosion
4. 1/4 of the wavelength (higher better)
Geosynchronous orbit
Radio antenna length
wet corrosion/electrochemical corrosion
open die forging
5. Load/effort
VR
Kinetic energy
Brushes
MA
6. Vertical
Bandwidth
Geosynchronous orbit
Transistor
sin
7. Elongation of grain flow in direction of rolling
hot rolling
Impressed current
Amplitude modulation
n%
8. 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
Ultrasonic inspection
Fluorescent test
Low carbon steel
AC motor
9. A cable made of optical fibers that can transmit large amounts of information at the speed of light
if 100% efficient
tungsten alloy
Dry corrosion
fibre optic cable
10. Load/area
thermosoftening polymer
Frequency modulation
AM
stress
11. Low pressure
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12. Hard - strong
hot rolling
thermosetting polymers
pearlite
grey cast iron
13. Forming of metal by compressive force above recrystallization point.
Medium earth orbit
Amplitude modulation
forging
ultra- high carbon steel
14. Squeezing of the hot metal between two shaped dies excess is cut off
closed die forging
medium carbon steel
extrusion
Low earth orbit
15. High pressure
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16. An orbit less than 1 -500 km. above the Earth's surface.
Radio antenna length
Low earth orbit
if 100% efficient
Uniform attack
17. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermosoftening polymer
fibre optic cable
Frequency modulation
open die forging
18. Good high temp wear - tools
FM
nickel alloy
forging
tungsten alloy
19. 10MHZ
cold rolling
FM
Bernoulli's principle high speed
ferrite
20. A method of transmitting signals by changing the amplitude of a waves
mild steel
elastomers=what
Amplitude modulation
thermosoftening polymer
21. Ma/vr x 100/1
Low earth orbit
stress corrosion
drop forging
n%
22. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Medium earth orbit
Laminated glass
thermosetting polymers
Magnetic inspection
23. Produces; harder - stronger and less ductile product
if 100% efficient
Twisted pair cable
stress corrosion
cold rolling
24. AC to DC
Satellite
sin
Transistor
rectifier
25. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
manganese and silicon alloy
hot rolling
FM
Attenuation
26. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
thermoset rubbers
Bandwidth
Brushes
27. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Bernoulli's principle low speed
Fluorescent test
Tempering
Transistor
28. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
malleable cast iron
mild steel
Radiography
medium carbon steel
29. Usually used together - strengthening and toughness
VR
manganese and silicon alloy
Hardening
Strain
30. A method of transmitting signals by changing the frequency of a wave
Ultrasonic inspection
Transistor
Frequency modulation
stress corrosion
31. When upper die is dropped on bottom
bending stress
medium carbon steel
drop forging
Fluorescent test
32. Field winding parallel to armature winding. Bad for direct coupling
DC motor
hot rolling
nodular graphite cast iron
bending stress
33. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Ultrasonic inspection
Geosynchronous orbit
Hardening
Tempered Glass
34. 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
Dye penetration test
Brushes
AC motor
Ultrasonic inspection
35. 1%<X<2% carbon. more cementite - used for files
ultra- high carbon steel
AM
medium carbon steel
grey cast iron
36. Results from the changing anode and cathode regions over the entire surface
Bernoulli's principle high speed
Concrete
Uniform attack
Geosynchronous orbit
37. Better properties that would come from machining
Uniform attack
MA
forging properties
thermoset rubbers
38. 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
Mobiles
Strain
Tempering
Dye penetration test
39. 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
if 100% efficient
Potential energy
Medium earth orbit
40. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Magnetic inspection
medium carbon steel
Dye penetration test
Laminated glass
41. Maximum bending moments X distance to natural axis/ second moment of area
bending stress
Ultrasonic inspection
Bernoulli's principle high speed
FM
42. Hard - brittle
chromium alloy
thermosoftening polymer
Radiography
cementite
43. 1GHZ
Mobiles
Bandwidth
Sacrifical anode
Medium earth orbit
44. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Tempered Glass
Kinetic energy
cold rolling
Satellite
45. Resulting from exposure to damp environments and liquids.
Tempered Glass
tungsten alloy
wet corrosion/electrochemical corrosion
shear stress
46. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
cos
Tempered Glass
Medium earth orbit
Dry corrosion
47. Soft - ductile
hot rolling
thermoset rubbers
bending stress
ferrite
48. Area load piston/area of effort piston
DC motor
VR
rectifier
Amplitude modulation
49. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Low carbon steel
cold rolling
Commutator
high carbon steel
50. 100GHZ+
white cast iron
Satellite
Uniform attack
Brushes