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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
Commutator
bending stress
wet corrosion/electrochemical corrosion
closed die forging
2. Rubbers
elastomers=what
Normalising
thermoset rubbers
Twisted pair cable
3. High pressure
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4. 10MHZ
nickel alloy
FM
Tempered Glass
rectifier
5. Low pressure
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6. Resulting from combined effect of stresses set up within the metal
stress corrosion
wet corrosion/electrochemical corrosion
Sacrifical anode
Normalising
7. AC to DC
Annealing
Mobiles
rectifier
extrusion
8. Load/area
High frequency
shear stress
Sacrifical anode
stress
9. Good wear - case hardening. ball bearings
Uniform attack
MA
Geosynchronous orbit
chromium alloy
10. Elongation of grain flow in direction of rolling
drop forging
fibre optic cable
Kinetic energy
hot rolling
11. Glass made with plates of plastic or resin or other material between two sheets of glass to prevent shattering
Laminated glass
chromium alloy
Normalising
AC motor
12. Supply current to the rotating commutator from an external source
ferrite
Brushes
VR
Kinetic energy
13. Squeezing of the hot metal between two shaped dies excess is cut off
thermosetting polymers
cold rolling
closed die forging
thermoplastic rubbers
14. When upper die is dropped on bottom
Uniform attack
mild steel
High frequency
drop forging
15. A strong hard building material composed of sand and gravel and cement and water
Medium earth orbit
cold rolling
Concrete
thermosetting polymers
16. Usually used together - strengthening and toughness
manganese and silicon alloy
Bandwidth
forging
thermoset rubbers
17. Between 2000-35 -700km above the earth's surface.
Dye penetration test
Medium earth orbit
spalling concrete
rectifier
18. 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.
Radio antenna length
bending stress
thermosetting polymers
Twisted pair cable
19. Load/effort
Tempering
Dye penetration test
high carbon steel
MA
20. The greater the sulphur the harder the rubber to stretch
if 100% efficient
thermoset rubbers
Tempered Glass
modulation
21. Solid at room temp - weak secondary bonds. can be reheated multiply times.
stress
Annealing
Dye penetration test
thermosoftening polymer
22. Hard - brittle
cementite
medium carbon steel
extrusion
Attenuation
23. A method of transmitting signals by changing the amplitude of a waves
MA
Radio antenna length
drop forging
Amplitude modulation
24. Results from the changing anode and cathode regions over the entire surface
Bandwidth
grey cast iron
pearlite
Uniform attack
25. 100GHZ+
Satellite
thermosetting polymers
fibre optic cable
grey cast iron
26. Produces; harder - stronger and less ductile product
Tempering
Fluorescent test
Tempered Glass
cold rolling
27. 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
Dye penetration test
Bandwidth
sin
Geosynchronous orbit
28. Makes brittle by heating and then cooling quickly - less flexible. Red Heat then quenching
thermosoftening polymer
n
Potential energy
Hardening
29. Good toughness and fatigue. high strength structures
nickel alloy
thermoplastic rubbers
hot rolling
Frequency modulation
30. Soft - ductile
malleable cast iron
Radio antenna length
Commutator
ferrite
31. Ma/vr
MA
n
Tempering
grey cast iron
32. Resulting from exposure to oxygen in the atmosphere - chemical fumes - steam - flue gas. creates a layer of metal oxide.
Dry corrosion
grey cast iron
if 100% efficient
fibre optic cable
33. Occurs when the metal is hammered by a vertically moving tool onto a stationary tool
open die forging
AM
Kinetic energy
Amplitude modulation
34. These have weaker secondary bonds which allow the stretching
Impressed current
if 100% efficient
thermoplastic rubbers
shear stress
35. Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces
Uniform attack
Tempered Glass
Potential energy
tungsten alloy
36. 0.15%<X<0.3% carbon. more pearlite - most common steel. weldable up to 0.2 used in structures
white cast iron
Bernoulli's principle low speed
mild steel
if 100% efficient
37. Field winding parallel to armature winding. Bad for direct coupling
tungsten alloy
FM
manganese and silicon alloy
DC motor
38. Allows for another signal to be sent along the carrier signal
thermoset rubbers
cementite
Bernoulli's principle low speed
modulation
39. Horizontal
cos
Strain
Kinetic energy
shear stress
40. Being forced - under pressure - through a hole like toothpaste. either hot or cold
Hardening
extrusion
forging
n
41. 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
fibre optic cable
AC motor
Potential energy
VR
42. Controlled cooling after heating metal to attain a degree of hardness. removes internal stresses
Tempering
Satellite
Amplitude modulation
shear stress
43. Can only be softened once - bonded strongly - generally stronger that thermoplastics. stronger secondary bonds
Impressed current
thermosetting polymers
extrusion
nickel alloy
44. Forming of metal by compressive force above recrystallization point.
forging
forging properties
Uniform attack
Fluorescent test
45. 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
Sacrifical anode
Mobiles
bending stress
Geosynchronous orbit
46. Based on the principle that magnetic materials will have distorted magnetic fields in the vicinity of material defects
Low carbon steel
Magnetic inspection
ultra- high carbon steel
Fluorescent test
47. 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
chromium alloy
nodular graphite cast iron
closed die forging
Transistor
48. Use of xrays passed through the material to make a visual record of internal structures on specially sensitized film
open die forging
VR
Radiography
Laminated glass
49. Mass X gravity X height
Potential energy
forging
grey cast iron
elastomers=what
50. 1/2Xmass X velocity X velocity
nodular graphite cast iron
MA
Kinetic energy
open die forging