The source of cotton fibre is:
animal
vegetable
synthetic polymer
natural polymer
Which one of the following is not a renewable source of energy?
Wind
Solar
Biomass
Petroleum
Which one of the following is extremely brittle and can be easily cracked?
Expanded polystyrene (EPS)
Acrylic
Polypropylene (PP)
Polyvinyl chloride (PVC)
Which one of the following is classified as a composite material?
Jelutong
Balsa
Medium Density Fibreboard (MDF)
Pine
A relatively inexpensive and easy to fold board is needed to package frozen foods.
The most suitable type of board would be:
solid white board
corrugated board
folding boxboard
foil-lined board
Thermochromic liquid crystals react to changes in temperature.
What type of materials are they?
Polymorph
Composite
Smart
Polymers
Which of the following metals is attracted to a magnet?
aluminium
brass
copper
mild steel
Which one of the following is a Biofuel?
LPG
Diesel
Coal
Wood
Brass is rarely used for electronic product cases because:
it rusts
it absorbs moisture
it conducts electricity
it cracks easily
What type of board is shown below?
Folding boxboard
Carton board
Corrugated board
Solid white board
