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WorksheetsEnvironmental Technologies
Total questions: 10
Worksheet time: 7mins
What direction should solar panels face to be most effective?
North
East
South
West
The device that converts DC to AC is a?
Converter
Resistor
Capacitor
Inverter
Which energy source do photovoltaic panels produce?
Electric
Solar
Natural gas
Wind power
An advantage of solar thermal water heating system is that it?
Overcomes the need for loft insulation
Reduces CO2 emissions
Can sell electric back into the grid
Have relatively low maintenance costs
An air source heat pump generally will not function efficiently?
Above 20 degrees celsius
Above 5 degrees celsius
Below -5 degrees celsius
Below -20 degrees celsius
Which of the following is an alternative to a trench as a method of heat collection for ground source heat pumps?
Natural fissure
Borehole
Thermal vent
Deep well
Which of the following is a type of solar thermal collector?
Inflated tube
Silver tube
Evacuated tube
Heated tube
Biomass fuels are considered to be carbon?
High
Low
Friendly
Neutral
Do photovoltaic panels produce alternating or direct electric current?
Alternating current
Direct Current
Using Ohms Law, select the correct formula and answer which states the size of fuse amp needed to protect a circuit that has a 3KW immersion heater installed on a 230V supply
V= I x R 15 amps
P = I x V 5 amps
I= P / V 13 amps
V= P / I 3 amps
