Environmental Mock Paper 1

When a CHP system is used to generate electricity, which of these is the heat not used for?

• The hot air is used to generate more electricity

• The hot air is condensed back into water

• The heat is stored in a heat recovery boiler to heat water

• The hot air is used to directly heat spaces

The diagram shows a micro hydro generation system. What will have the greatest influence on the amount of electricity generated?

• The size of the reservoir available

• The difference in flowrate between winter and summer

• The size of the dam used to hold back water

• The width of the stream or river

What is an advantage of using a wood chip fuel for a biomass heating system?

• The system can be physically smaller

• A wide range of chips can be used

• The system can burn wood of a higher moisture content

• Large amount of chips can be stored onsite

The diagram shows a rainwater harvesting system. Identify the part marked A.

• Overflow trap

• Pressure hose

• Vortex underground filter

• Anti-surcharge

The diagram shows a ground-source heat pump system. Which part of the system transfers heat to the central heating system?

• Heat pump

• Evaporator

• Condenser

• Compressor

A diagram shows a solar photovoltaic system. Identify the part marked A.

• Consumer unit

• Inverter

• Display

• Generation meter

When replacing domestic lighting, which type of light would be the most energy efficient?

• LED

• GLS

• Halogen

• CFL

Which is the most important reason why spillages of chemicals should be reported to the correct authorities?

• More chemicals will need to be bought

• Chemicals could pollute the water supply if untreated

• The company could be fined

• The employer could lose their contracts

Which of these is not an acceptable method of reducing wastage during installations?

• Reduce meter tails to a minimum where possible

• Re-use leftover materials on another project

• Recover left over wiring during a project

• Route all cables along the shortest possible route

When disposing of hazardous materials, symbols are used to identify the type of substance. Which type of hazard is identified by the symbol below?

• Corrosive

• Toxic

• Flammable

• Irritant