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Q.1
Glue is what type of material?
Metal
Ceramic
Polymer
Composite
Q.2
Object made from wood and cloth
Can sink
Can conduct electricity
Can absorb water
Cannot absorb water
Q.3
Pewter object made from
Gold
Clay
Sand
Copper
Q.4
Mirror is made from
Gold
Clay
Sand
Copper
Q.5
Ceramic bowl is made from
Gold
Clay
Sand
Copper
Q.6
Plastic and synthetic cloth are made from
Plant
Petroleum
Rock
Animal
Q.7
Below are materials from plant except
Rubber
Wood
Copper
Cotton
Q.8
Low alloy steel can be listed as below EXCEPT
Medium carbon steel
High carbon steel
Moderate carbon steel
Low carbon steel
Q.9
Which of the following statement below is an example of corrosion remedial action in designs?
Bolts and rivets should be replaced by proper welding.
Use of corrosion resistant alloys.
Plastic and oil are use mainly for coatings.
Chromium is added to the steel to enhance its corrosion resistant properties.
Q.10
Object that can made from animal
Bottle
Wire
Woolen cap
Table
Q.11
Commercially pure iron contains up to 0.C and steel up toC.What are the carbon content in Cast iron?
More than 2% C
Up to 4% C
Up to 10% C
Up to 7% C
Q.12
What is the application of cast iron?
Car body
Engine blocks
Bridge
Hammer
Q.13
The charasteristics of stainless steel are determined by ...............
resistance
high stress
cobalt content
chromium content
Q.14
Listed below are the types of cast iron EXCEPT ................
grey cast iron
white cast iron
black cast iron
nodular cast iron
Q.15
Listed below are non-ferrous metals EXCEPT ..............
aluminium
zinc
hydrogen
copper
Q.16
.................. is a process of metal reduction from the conditions that can be used to the conditions that cannot be used.
Corrosion
Vibration
Tension
Pollution
Q.17
Wet corrosion would only occur with the presence of .................
heat
electricity
moisture
air
Q.18
Which of the following is TRUE about dry corrosion
Also known as direct oxidation corrosion
Also known as electrochemical corrosion
Causes metal to damage slowly but effectively
Involves the position of metal in the electrochemical series
Q.19
What are the names of the magnet poles?
south and east
north and west
north and south
Q.20
Magnets do not attract objects that are made of......
metal
stainless steel
wood, glass, plastic, cloth, rubber and paper.
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