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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. Good wear - case hardening. ball bearings
Ultrasonic inspection
modulation
chromium alloy
high carbon steel
2. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Concrete
ferrite
Magnetic inspection
elastomers=what
3. Results from the changing anode and cathode regions over the entire surface
Geosynchronous orbit
Mobiles
Uniform attack
if 100% efficient
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
Bandwidth
Fluorescent test
Attenuation
Annealing
5. Soaked cast iron at 870c for long time then cooled slow
white cast iron
malleable cast iron
Potential energy
cos
6. Resulting from exposure to damp environments and liquids.
manganese and silicon alloy
wet corrosion/electrochemical corrosion
Uniform attack
Mobiles
7. Steel reinforcing rusts - rust has a greater volume concrete then breaks of as a result.
spalling concrete
wet corrosion/electrochemical corrosion
DC motor
malleable cast iron
8. 1/4 of the wavelength (higher better)
white cast iron
Radio antenna length
modulation
cementite
9. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Bernoulli's principle high speed
extrusion
Low carbon steel
MA
10. Maximum bending moments X distance to natural axis/ second moment of area
bending stress
mild steel
elastomers=what
Hardening
11. AC to DC
high carbon steel
Magnetic inspection
Hardening
rectifier
12. A cable made of optical fibers that can transmit large amounts of information at the speed of light
fibre optic cable
Frequency modulation
forging
Fluorescent test
13. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
Bernoulli's principle high speed
Radio antenna length
Magnetic inspection
thermosetting polymers
14. Degradation of a signal as it travels over a cable. Attenuation increased with higher frequencies
VR
Attenuation
Medium earth orbit
MA
15. Hard - brittle
malleable cast iron
thermosoftening polymer
cementite
Low carbon steel
16. Ma/vr
shear stress
n
Uniform attack
Bernoulli's principle high speed
17. Better properties that would come from machining
Annealing
Hardening
forging properties
High frequency
18. 1%<X<2% carbon. more cementite - used for files
FM
Potential energy
ultra- high carbon steel
fibre optic cable
19. Load/area
Laminated glass
stress
Magnetic inspection
Transistor
20. 10MHZ
Impressed current
FM
spalling concrete
shear stress
21. Solid at room temp - weak secondary bonds. can be reheated multiply times.
grey cast iron
thermosoftening polymer
nodular graphite cast iron
Bernoulli's principle high speed
22. High pressure
23. x<0.15% carbon. ferrite. good for cold working - rolling sheets
Low carbon steel
n%
fibre optic cable
Concrete
24. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
Attenuation
drop forging
nodular graphite cast iron
Normalising
25. A method of transmitting signals by changing the amplitude of a waves
rectifier
thermosetting polymers
Amplitude modulation
shear stress
26. The greater the sulphur the harder the rubber to stretch
Geosynchronous orbit
Ultrasonic inspection
thermoset rubbers
rectifier
27. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
cos
Tempering
tungsten alloy
wet corrosion/electrochemical corrosion
28. Difference/original
Medium earth orbit
Strain
Tempering
ultra- high carbon steel
29. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
grey cast iron
stress
Radiography
n
30. 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
Satellite
Annealing
Brushes
Low earth orbit
31. Forming of metal by compressive force above recrystallization point.
Low carbon steel
forging
Bernoulli's principle high speed
Annealing
32. 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.
Attenuation
chromium alloy
Impressed current
Dry corrosion
33. 100GHZ+
ultra- high carbon steel
Satellite
Annealing
forging
34. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
Radiography
n
Transistor
high carbon steel
35. Produces; harder - stronger and less ductile product
cold rolling
chromium alloy
spalling concrete
Medium earth orbit
36. X<1% silicon no graphite - has carbon/carbide. very brittle
white cast iron
thermoplastic rubbers
forging
DC motor
37. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
Medium earth orbit
if 100% efficient
MA
Hardening
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
pearlite
Tempering
Dye penetration test
Impressed current
39. 1/2Xmass X velocity X velocity
Laminated glass
Potential energy
Kinetic energy
grey cast iron
40. Vertical
sin
Dry corrosion
fibre optic cable
spalling concrete
41. 1GHZ
shear stress
spalling concrete
Mobiles
n
42. Field winding parallel to armature winding. Bad for direct coupling
thermosetting polymers
ferrite
hot rolling
DC motor
43. A method of transmitting signals by changing the frequency of a wave
white cast iron
Frequency modulation
Satellite
thermoset rubbers
44. Resulting from combined effect of stresses set up within the metal
stress corrosion
Low earth orbit
Commutator
cold rolling
45. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
tungsten alloy
AM
Satellite
46. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
manganese and silicon alloy
Commutator
mild steel
Mobiles
47. Load/effort
Frequency modulation
Attenuation
spalling concrete
MA
48. Good toughness and fatigue. high strength structures
Medium earth orbit
nickel alloy
Brushes
Low earth orbit
49. Low pressure
50. 0.3%<X<0.6% carbon. mostly pear- lite - heat treatable. 0.4 used in axles
rectifier
Bernoulli's principle high speed
medium carbon steel
Low earth orbit