01.For each of the following
items, choose the most correct answer from the given alternatives and write its
letter beside the item number in your answer sheet.
i)
The following are natural fuels except;
A. Wood, charcoal
B. Natural gas, coal
C. Peat, petroleum
D. Wood, coal
ii)
A good fuel should:
A. Be expensive
B. Be available in
small amount
C. Be easily burnt
in presence of carbon dioxide
D. Not producing
poisonous gases
iii) The most
important sold fuel which contain volatile matter is:
A. Coke
B. Coal
C. Petroleum
D. Water gas
iv)
The most important gaseous fuels used in industries
are:
A. Coal gas and
hydrogen gas
B. Liquefied
petroleum gas (LPG)
C. Water gas and
producer gas
D. Natural gas and
crude petroleum
v)
Water possesses two forms of energy which are:
A. Kinetic energy
and thermal energy
B. Potential energy
and electrical energy
C. Tidal energy and
wind energy
D. Hydroelectric
energy and solar energy
Answers:
|
i |
ii |
iii |
iv |
v |
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02.Define the following terms:
i.
Energy value
ii.
Ignition point
iii. Kinetic energy
iv.
Potential energy
03.List the major four (4)
components of coal
04.List the four (4) important
types of coal
05.(a) Define energy
(b) State the principle of
conservation of energy
06.Mention one device that can
perform each of the following conversions of energy:
i.
From mechanical energy to electrical energy
ii.
From electrical to heat energy
iii. From electrical
to mechanical energy
iv.
From electrical to sound energy
v.
From solar energy to electrical energy
07.(a) Define energy value of
fuel
(b) A mass of 20 g of petrol
was burnt in air. The heat produced was used to heat 2.5 litres of water. Given
that the heat value of petrol is
43 640 KJ/Kg, what was the
temperature change in water? (Given
specific heat capacity of water is 4.18 KJKg-1K-1 and
density of water is 1000 Kg/m3)
08.(a) Define renewable sources
of energy
(b) Write two main
advantages of biofuels
