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 gas which turns lime water milky is:
A. Oxygen
B. Hydrogen
C. Carbon dioxide
D. Nitrogen
ii.
The percentage of water vapour in the atmosphere
vary depending on:
A. Humidity
B. Sun rise and
sunset
C. Weather and geographical
location
D. Water cycle
iii. Which class of
fire is burning of flammable liquids such as petrol and alcohol?
A. Class A
B. Class B
C. Class C
D. Class D
iv.
The components required in right proportional for
the fire to burn are referred to as:
A. Fire triangle
B. Fire extinguisher
C. Fire fighting
D. Combustible
materials
v.
The process of coating iron or steel with zinc or
metal that does not rust is:
A. Galvanization
B. Painting
C. Electroplating
D. Electrolysis
Answers:
|
I
|
ii
|
iii
|
iv
|
v
|
|
|
|
|
|
|
02. Define the
following terms
i)
Combustion
ii)
Combustible materials
iii) Flame
iv)
Fire
v)
Firefighting
03. Mention three
components required for the fire to burn.
04. (a) Define the
following terms
i. Rust
ii. Rusting
(b) List two necessary
conditions for rusting to occur in iron or steel.
(c) Mention any four (4)
methods used to prevent rusting.
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07. Bonding, Formula and Nomenclature 01.For each of the following
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lett
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i
Ii
iii
iv
v
D
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B
A
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5
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