Which Would Be the Least Effective Insulation for Your House

question 40

Multiple Choice

Which would be the least effective insulation for your house?

• A) a meter-thick layer of trapped air
• B) a thin sheet of metal
• C) thick bundles of straw or wool
• D) a thin layer of wood
• E) a single wall of cinder block

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Definitions:

Across The Line

Refers to a method of starting electric motors where the motor is directly connected to the power line, resulting in full line voltage being applied.

Full Voltage

A term typically referring to the application of full line voltage to a device, ensuring it operates at its intended performance level.

Electrical Supply

Refers to the source and infrastructure involved in delivering electricity from the production point to the consumer.

Electric Motors

Machines that convert electrical energy into mechanical energy, commonly used in various applications from household appliances to industrial machinery.