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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. Hard - strong
Amplitude modulation
pearlite
Geosynchronous orbit
Twisted pair cable
2. x<0.15% carbon. ferrite. good for cold working - rolling sheets
DC motor
Medium earth orbit
Low carbon steel
stress
3. 1GHZ
extrusion
Mobiles
Bernoulli's principle low speed
drop forging
4. 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
Medium earth orbit
white cast iron
Annealing
Fluorescent test
5. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
forging properties
Tempering
n%
Low earth orbit
6. When upper die is dropped on bottom
Bandwidth
Dye penetration test
shear stress
drop forging
7. Being forced - under pressure - through a hole like toothpaste. either hot or cold
nickel alloy
extrusion
Annealing
Impressed current
8. Resulting from combined effect of stresses set up within the metal
Sacrifical anode
cos
stress corrosion
Fluorescent test
9. The greater the sulphur the harder the rubber to stretch
forging properties
Geosynchronous orbit
thermoset rubbers
ferrite
10. 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
AC motor
manganese and silicon alloy
extrusion
Tempered Glass
11. MA=VR
if 100% efficient
Brushes
Amplitude modulation
white cast iron
12. Usually used together - strengthening and toughness
Ultrasonic inspection
closed die forging
stress corrosion
manganese and silicon alloy
13. 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
VR
cementite
stress
14. 10MHZ
FM
Low carbon steel
manganese and silicon alloy
Tempering
15. 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.
Magnetic inspection
Twisted pair cable
Radiography
Ultrasonic inspection
16. Produces; harder - stronger and less ductile product
cold rolling
Attenuation
forging properties
nickel alloy
17. 1/4 of the wavelength (higher better)
Bernoulli's principle low speed
Radio antenna length
n%
DC motor
18. 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.
Frequency modulation
malleable cast iron
Impressed current
high carbon steel
19. Mass X gravity X height
Uniform attack
Potential energy
hot rolling
forging
20. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Commutator
thermosoftening polymer
Frequency modulation
Bandwidth
21. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
medium carbon steel
AM
Frequency modulation
Fluorescent test
22. Forming of metal by compressive force above recrystallization point.
Twisted pair cable
forging
mild steel
Attenuation
23. An orbit less than 1 -500 km. above the Earth's surface.
pearlite
Low earth orbit
Bandwidth
cementite
24. These have weaker secondary bonds which allow the stretching
Frequency modulation
thermoplastic rubbers
Dye penetration test
Brushes
25. Soaked cast iron at 870c for long time then cooled slow
Magnetic inspection
cos
medium carbon steel
malleable cast iron
26. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
Sacrifical anode
n
Dry corrosion
rectifier
27. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
Radiography
Normalising
manganese and silicon alloy
Mobiles
28. Load/effort
stress corrosion
white cast iron
rectifier
MA
29. 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
bending stress
n%
spalling concrete
30. Good toughness and fatigue. high strength structures
High frequency
nickel alloy
spalling concrete
medium carbon steel
31. Supply current to the rotating commutator from an external source
Normalising
Brushes
tungsten alloy
stress
32. X<1% silicon no graphite - has carbon/carbide. very brittle
chromium alloy
white cast iron
Bandwidth
cos
33. 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
bending stress
stress
Dye penetration test
forging properties
34. 1%<X<2% carbon. more cementite - used for files
Hardening
nodular graphite cast iron
Laminated glass
ultra- high carbon steel
35. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Bernoulli's principle high speed
Bernoulli's principle low speed
Dye penetration test
high carbon steel
36. Area parallel to force
shear stress
sin
cementite
high carbon steel
37. A cable made of optical fibers that can transmit large amounts of information at the speed of light
Tempering
modulation
DC motor
fibre optic cable
38. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Ultrasonic inspection
High frequency
stress
Sacrifical anode
39. Hard - brittle
cementite
Annealing
Frequency modulation
Sacrifical anode
40. Better properties that would come from machining
Transistor
FM
VR
forging properties
41. Solid at room temp - weak secondary bonds. can be reheated multiply times.
Mobiles
thermosoftening polymer
high carbon steel
Low carbon steel
42. A method of transmitting signals by changing the frequency of a wave
Tempering
Geosynchronous orbit
Frequency modulation
cementite
43. Load/area
stress
Bernoulli's principle low speed
bending stress
cold rolling
44. Results from the changing anode and cathode regions over the entire surface
Uniform attack
Tempered Glass
white cast iron
Mobiles
45. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
Dye penetration test
stress corrosion
extrusion
46. Squeezing of the hot metal between two shaped dies excess is cut off
closed die forging
ferrite
mild steel
pearlite
47. Horizontal
AC motor
cos
Attenuation
forging
48. A strong hard building material composed of sand and gravel and cement and water
Concrete
Low carbon steel
Ultrasonic inspection
open die forging
49. Between 2000-35 -700km above the earth's surface.
Radio antenna length
thermosetting polymers
Annealing
Medium earth orbit
50. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Hardening
Radiography
thermosoftening polymer
mild steel