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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. Maximum bending moments X distance to natural axis/ second moment of area
bending stress
Amplitude modulation
nickel alloy
spalling concrete
2. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
spalling concrete
Normalising
tungsten alloy
3. 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
closed die forging
Uniform attack
Dye penetration test
manganese and silicon alloy
4. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
high carbon steel
thermoset rubbers
stress corrosion
mild steel
5. 100GHZ+
Fluorescent test
Satellite
grey cast iron
pearlite
6. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
high carbon steel
nodular graphite cast iron
AM
Concrete
7. A strong hard building material composed of sand and gravel and cement and water
Concrete
DC motor
Bernoulli's principle high speed
AC motor
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
Bernoulli's principle low speed
closed die forging
thermoset rubbers
Fluorescent test
9. 1/4 of the wavelength (higher better)
Potential energy
pearlite
Medium earth orbit
Radio antenna length
10. 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
Concrete
Transistor
manganese and silicon alloy
wet corrosion/electrochemical corrosion
11. A device that converts the AC inside a DC generator to a DC output or converts a DC supply to an AC inside a DC motor.keeping the armature rotating
VR
Mobiles
Annealing
Commutator
12. 1GHZ
Mobiles
Amplitude modulation
Radio antenna length
thermosetting polymers
13. Vertical
VR
sin
Tempered Glass
drop forging
14. Elongation of grain flow in direction of rolling
Kinetic energy
hot rolling
wet corrosion/electrochemical corrosion
Commutator
15. Between 2000-35 -700km above the earth's surface.
Attenuation
Tempering
closed die forging
Medium earth orbit
16. 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
forging properties
thermoset rubbers
Radio antenna length
Geosynchronous orbit
17. A method of transmitting signals by changing the frequency of a wave
stress
Frequency modulation
Tempered Glass
Tempering
18. Good wear - case hardening. ball bearings
chromium alloy
Uniform attack
Twisted pair cable
Amplitude modulation
19. Sound waves sent through a material - much like sonar. Internal defects appear because they use more energy to go through it.
Sacrifical anode
Geosynchronous orbit
fibre optic cable
Ultrasonic inspection
20. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
Radiography
nickel alloy
Annealing
mild steel
21. 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
High frequency
Annealing
manganese and silicon alloy
ferrite
22. AC to DC
Dye penetration test
Attenuation
Kinetic energy
rectifier
23. Small amounts of magnesium to make spheres instead of flakes. thus no stress concentrations
nodular graphite cast iron
Dye penetration test
Hardening
Frequency modulation
24. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
cold rolling
Magnetic inspection
Kinetic energy
chromium alloy
25. Solid at room temp - weak secondary bonds. can be reheated multiply times.
thermosoftening polymer
wet corrosion/electrochemical corrosion
Laminated glass
grey cast iron
26. Area load piston/area of effort piston
white cast iron
open die forging
VR
AC motor
27. Hard - strong
pearlite
mild steel
Tempered Glass
Ultrasonic inspection
28. 1/2Xmass X velocity X velocity
Low earth orbit
Radiography
thermoset rubbers
Kinetic energy
29. Hard - brittle
cementite
thermosetting polymers
nickel alloy
Tempering
30. Resulting from combined effect of stresses set up within the metal
extrusion
stress corrosion
Dye penetration test
grey cast iron
31. Being forced - under pressure - through a hole like toothpaste. either hot or cold
extrusion
DC motor
Radiography
Ultrasonic inspection
32. Resulting from exposure to damp environments and liquids.
ferrite
wet corrosion/electrochemical corrosion
Sacrifical anode
thermoplastic rubbers
33. Ma/vr x 100/1
n
Sacrifical anode
Attenuation
n%
34. Usually used together - strengthening and toughness
manganese and silicon alloy
Laminated glass
Ultrasonic inspection
hot rolling
35. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
modulation
Bernoulli's principle low speed
closed die forging
open die forging
36. The quantity of information that can be transmitted through a communication medium in a given amount of time.
Dye penetration test
Bandwidth
AM
Strain
37. The greater the sulphur the harder the rubber to stretch
rectifier
Normalising
n
thermoset rubbers
38. High pressure
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39. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
stress corrosion
nodular graphite cast iron
Normalising
Brushes
40. Soft - ductile
Attenuation
Low carbon steel
ferrite
Bandwidth
41. Ma/vr
if 100% efficient
AC motor
n
Magnetic inspection
42. A method of transmitting signals by changing the amplitude of a waves
nodular graphite cast iron
Transistor
Amplitude modulation
medium carbon steel
43. Rubbers
Bandwidth
Tempering
elastomers=what
hot rolling
44. Load/area
if 100% efficient
stress
n
Ultrasonic inspection
45. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Tempered Glass
shear stress
high carbon steel
Sacrifical anode
46. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
Ultrasonic inspection
Radio antenna length
Dry corrosion
modulation
47. Produces; harder - stronger and less ductile product
wet corrosion/electrochemical corrosion
cold rolling
spalling concrete
Commutator
48. 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
closed die forging
mild steel
MA
AC motor
49. MA=VR
wet corrosion/electrochemical corrosion
ferrite
if 100% efficient
Low earth orbit
50. 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
Potential energy
Fluorescent test
Sacrifical anode
tungsten alloy