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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. AC to DC
rectifier
Dye penetration test
grey cast iron
Bernoulli's principle high speed
2. Soft - ductile
Potential energy
Low earth orbit
ferrite
manganese and silicon alloy
3. A method of transmitting signals by changing the amplitude of a waves
forging
Tempering
Annealing
Amplitude modulation
4. 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
Transistor
forging
rectifier
5. Area parallel to force
Uniform attack
medium carbon steel
shear stress
extrusion
6. Good wear - case hardening. ball bearings
Low carbon steel
Twisted pair cable
elastomers=what
chromium alloy
7. A method of transmitting signals by changing the frequency of a wave
Magnetic inspection
AC motor
Frequency modulation
Amplitude modulation
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 developer is then added to it to expose any left over - I.e in the cracks
Dye penetration test
ultra- high carbon steel
stress
extrusion
9. Rubbers
thermosoftening polymer
n%
elastomers=what
Brushes
10. The quantity of information that can be transmitted through a communication medium in a given amount of time.
FM
n
Bandwidth
white cast iron
11. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
stress corrosion
Fluorescent test
open die forging
if 100% efficient
12. Maximum bending moments X distance to natural axis/ second moment of area
Commutator
Strain
thermoplastic rubbers
bending stress
13. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
cold rolling
Amplitude modulation
Magnetic inspection
Bernoulli's principle low speed
14. Hard - strong
pearlite
Mobiles
spalling concrete
VR
15. Results from the changing anode and cathode regions over the entire surface
Uniform attack
Normalising
bending stress
Tempered Glass
16. 100khz
ferrite
if 100% efficient
AM
medium carbon steel
17. Ma/vr x 100/1
FM
n%
ultra- high carbon steel
thermoplastic rubbers
18. 0.6%<X<1% carbon. almost entirely pearlite with cementite x>0.8% for high strength and wear
high carbon steel
Twisted pair cable
Satellite
cementite
19. MA=VR
Satellite
Commutator
if 100% efficient
wet corrosion/electrochemical corrosion
20. Good high temp wear - tools
Concrete
ultra- high carbon steel
tungsten alloy
Annealing
21. Allows for another signal to be sent along the carrier signal
thermoset rubbers
Annealing
modulation
Amplitude modulation
22. Load/area
Amplitude modulation
Dry corrosion
thermosetting polymers
stress
23. 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
Dye penetration test
Twisted pair cable
stress corrosion
24. Supply current to the rotating commutator from an external source
open die forging
cos
Hardening
Brushes
25. Between 2000-35 -700km above the earth's surface.
tungsten alloy
Fluorescent test
Medium earth orbit
Impressed current
26. 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
thermosoftening polymer
AM
Fluorescent test
thermosetting polymers
27. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Bernoulli's principle low speed
Tempered Glass
thermosoftening polymer
grey cast iron
28. Field winding parallel to armature winding. Bad for direct coupling
Tempering
DC motor
stress
Commutator
29. Usually used together - strengthening and toughness
manganese and silicon alloy
thermosoftening polymer
Geosynchronous orbit
Commutator
30. Majority silicon X>1.5% for graphite. Graphite in flakes that cause stress points
AC motor
grey cast iron
Ultrasonic inspection
Medium earth orbit
31. Resulting from combined effect of stresses set up within the metal
ultra- high carbon steel
stress corrosion
Twisted pair cable
spalling concrete
32. An orbit less than 1 -500 km. above the Earth's surface.
fibre optic cable
Low earth orbit
pearlite
modulation
33. x<0.15% carbon. ferrite. good for cold working - rolling sheets
VR
Low carbon steel
n%
grey cast iron
34. 1%<X<2% carbon. more cementite - used for files
Radiography
cos
Frequency modulation
ultra- high carbon steel
35. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
Fluorescent test
Attenuation
Medium earth orbit
36. Good toughness and fatigue. high strength structures
modulation
Potential energy
nickel alloy
nodular graphite cast iron
37. 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
Commutator
Geosynchronous orbit
Laminated glass
Brushes
38. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
AC motor
Impressed current
High frequency
thermosetting polymers
39. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
thermoset rubbers
forging properties
AM
40. Difference/original
Strain
if 100% efficient
VR
fibre optic cable
41. Can be reflected of the ionosphere - 3 to 30 megahertz
VR
High frequency
Bandwidth
tungsten alloy
42. Involves heating the piece above Red heat and then letting it cool in air. causes smaller grains
cos
tungsten alloy
AM
Normalising
43. The greater the sulphur the harder the rubber to stretch
Mobiles
Low earth orbit
thermoset rubbers
Satellite
44. 10MHZ
FM
Kinetic energy
nodular graphite cast iron
Low carbon steel
45. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
malleable cast iron
thermosetting polymers
mild steel
Annealing
46. Load/effort
MA
nickel alloy
Concrete
ultra- high carbon steel
47. Squeezing of the hot metal between two shaped dies excess is cut off
closed die forging
AC motor
if 100% efficient
modulation
48. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
thermosetting polymers
drop forging
Sacrifical anode
Radiography
49. Produces; harder - stronger and less ductile product
Hardening
cold rolling
Amplitude modulation
rectifier
50. Forming of metal by compressive force above recrystallization point.
stress corrosion
if 100% efficient
forging
cold rolling