Energy quiz

In England, what is the statutory maximum temperature to which you can legally heat most non-domestic premises? 19°C
This is stipulated in the Fuel and Electricity (Heating) (Control) (Amendment) Order 1980. Exceptions apply to some groups, e.g. infants, the elderly and infirm.
What is the common name for a non-petroleum-based vehicle fuel consisting of short chain alkyl esters, made by transesterification of vegetable oil? Biodiesel
What was the name of the tanker which suffered a severe oil spill in Alaska in 1989?

a) Torrey Canyon
b) Exxon Valdez
c) Amoco Cadiz
d) Erika
e) Betelgeuse

(b) Exxon Valdez The Torrey Canyon caused a major spill off Land’s End in 1967. The Amoco Cadiz and Erika caused spills on the French coast in 1978 and 1999 respectively. The Betelgeuse caught fire and exploded in Bantry Bay in 1979, killing 50 people
What are the two principal chemical elements in gas and oil which result in the release of heat when they are burned? Carbon and hydrogen
We often refer to mains voltage in the UK as 240 volts. What are the statutory limits for supply voltage?

a) 216 – 264V
b) 207 – 253V
c) 216 – 253V

c) 216 – 253V The statutory nominal supply voltage is 230V, with a range of +10% to -6%. Note that answer (b) is the range which appliances must tolerate according to EU regulations and equates to 230V ±10%
‘Non-directional’ filament light bulbs are gradually being phased out. What is the last date on which such bulbs can be put on the market in the UK?

a) 1 September 2012
b) 1 April 2014
c) 31 March 2013

a) 1 September 2012
A condensing boiler is more energy-efficient partly because its exhaust gas temperature is very low, meaning less heat goes up the chimney.

What is the other reason?

(a) The gas is compressed to make it more dense before combustion
(b) The boiler’s working parts are condensed into a smaller space
(c) Heat is recovered by condensing water vapour from the exhaust gas
(d) Condensation is removed from the fuel before combustion

c) Heat is recovered by condensing water vapour from the exhaust gas. Hydrogen is present in the fuel in significant quantities, and combining it with oxygen during combustion creates H2O -- water. For a natural-gas appliance, if the products of combustion are discharged at 60°C or higher, that water leaves as vapour. Below 60°C, however, the vapour condenses and gives up its latent heat.
How many people perished in the Piper Alpha oil rig fire in July 1988?

a) 7
b) 17
c) 67
d) 167

d) 167
A ground-source heat pump provides heating by

(a) tapping into hot rocks deep underground
(b) pumping refrigerated fluid through buried pipes
(c) circulating warm water from a heat pump through buried pipes

(b) pumping refrigerated fluid through buried pipes Fluid is circulated in buried pipes but it can obviously only pick up heat if it is colder than the ground. So it must be chilled first. The heat pump is a refrigeration plant which extracts the collected heat, cooling the circulating fluid in the process. Note: answer (a) refers to geothermal energy. Answer (c) would be true if one were dumping heat into the ground when cooling the building.
A quiz is just one way to promote awareness of energy at work. If you would like to learn more about motivation and awareness-raising, please see details of our Energising the workforce workshops.