GEOLOGY
ECONOMIC GEOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Because they are insulators.
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Because they are conductors.
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Either A or B
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None of the above
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Detailed explanation-1: -Under most conditions you should have the equivalent of 6 inches of fiberglass thermal insulation over your top floor ceiling. 3.5 to 4 inches of sidewall insulation is also recommended.
Detailed explanation-2: -Plastic, rubber, wood, and ceramics are good insulators. These are often used to make kitchen utensils, such as saucepan handles, to stop heat from flowing up to burn the cook’s hand. Plastic coating is also used to cover most electrical wires in appliances. Air is also a good insulator of heat.
Detailed explanation-3: -Insulating materials are bad conductors and so this reduces the heat loss by conduction. The material also prevents air circulating inside the cavity, therefore reducing heat loss by convection. Heat loss through the roof can be reduced by laying loft insulation.
Detailed explanation-4: -Pipe Insulation is thermal or acoustic insulation used on pipework.