micro renewable energy

What is a renewable resource?

• Fossil fuels

• A resource you can reuse over and over

• A resource that has a nearly unlimited supply

• An object you cannot replace

Answer explanation

A renewable resource is a resource that can be reused over and over or has a nearly unlimited supply, making it sustainable and environmentally friendly.

There is a(n) __________ supply of solar energy provided by the sun.

• continuous

• renewable

• populated

• ample

Answer explanation

Solar energy provided by the sun is continuous, ample, and renewable, making it an abundant and sustainable source of power.

Why is solar energy considered renewable energy?

• It's cheaper than fossil fuels

• Solar energy recharges batteries

• The sun's energy would not run out for billions of years

• All of them

Answer explanation

Solar energy is considered renewable because the sun's energy would not run out for billions of years, making it a long-lasting and sustainable source of power.

The basic operating principle of a PV system is through the?

• Sun’s rays heating water in pipes or cylinders

• Heating of solar tubes to provide heat

• Heat energy being used to power an electrical generator

• Conversion of light energy into electrical energy

Answer explanation

The correct answer is the conversion of light energy into electrical energy, which is the basic operating principle of a PV system.

Why is developing renewable energy important to life on Earth?

• Renewable energy can last forever

• Other energy sources will be used up and gone forever

• Renewable energy produces less pollution

• We will run out of energy

• All of the above

Answer explanation

Developing renewable energy is important because it can last forever, other energy sources will be used up and gone forever, renewable energy produces less pollution, and we will run out of energy if we don't switch to sustainable options.

On the flip side, we have __________ sun, water, and wind.

• abundant

• limited

• renewable

• dependent

Answer explanation

The correct choice is 'abundant' because the sentence is contrasting 'limited' with 'sun, water, and wind', indicating that these resources are plentiful or abundant.

On a solar thermal hot water heating system, the panels should be installed as close as possible to the hot water cylinder in order to?

• Minimise the time taken for the installation

• Minimise the number of soldered joints

• Minimise installation costs

• Minimise the length of pipe runs in the system

Answer explanation

Installing the panels close to the hot water cylinder minimizes installation costs by reducing the length of pipe runs in the system, resulting in lower material and labor expenses.

When using a biomass stove, it is suitable for?

• Heating one room and providing hot water for a house

• Heating and providing hot water for an entire house

• Providing heat for each room in an entire house

• Providing hot water for one room within a house

Answer explanation

When using a biomass stove, it is suitable for heating and providing hot water for an entire house, making it the correct choice among the options provided.

What is a major consideration when sizing an air source heat pump?

• Heat load of the building

• Total number of occupants in the building

• Orientation of the building

• Total hot water usage for each occupant

Answer explanation

When sizing an air source heat pump, a major consideration is the heat load of the building, as it determines the capacity needed to effectively heat or cool the space.

What if we could exhange our fossil fuel dependence for an existence based __________ on renewables?

• practically

• barely

• exclusively

• solely

Answer explanation

The correct choices 'exclusively' and 'solely' indicate a complete dependence on renewables, replacing fossil fuels entirely.