Plumbing Materials Study Guide
Types Properties Uses and
Practice Questions and Answers
Latest 2026 Sure Pass!!!
Standard pipe Double hub Single hub Hub less
Correct Answer: 4 variety of cast iron pipe
ACID RESISTANT CAST IRON PIPE
Correct Answer: Made of alloy of cast iron and silicon. It is
installed in chemical laboratories, industries or other
installations where acid waste is being discharged.
ASBESTOS PIPE
Correct Answer: It is made of asbestos fibers and Portland
cement. This pipe could be used as soil, waste or
ventilation pipe and downspout.
BITUMINOUS FIBER SEWER PIPE
Correct Answer: It is the cheapest of all types of pipe. It is
light in weight, sometimes recommended for house sewer
and for tank installations.
VITRIFIED CLAY PIPE
Correct Answer: It is considered as one of the oldest
materials used for sewer lines. It is made from clay cast
into length of 750mm or 0.75m treated with glazed
compound and heated in large kiln under a temperature of
1370 ºC making it impervious to moisture
LEAD PIPE
1
, Correct Answer: It is also one of the oldest plumbing
materials used by the Egyptians, Greeks and the Roman
Architects for soil, waste and ventilation pipe.
GALVANIZED STEEL PIPE
Correct Answer: It is made up of mild steel drawn through
a die and welded cast into 6m long. Steel pipe is
subjected to deposits of salt and lime which gradually
accumulate and eventually choke the flow of water. This
type of pipe is corroded by alkaline and acid water.
GALVANIZED WROUGHT IRON PIPE
Correct Answer: It is better than steel pipe for plumbing
installation. Test showed that wrought iron pipe is more
resistant to acid waste that the steel pipe.
BRASS PIPE
Correct Answer: It is the most expensive of all types of
pipe. This type is made of an alloy or zinc and copper
mixed a proportion of 15% and 85% respectively. This
pipe is superior material for waste and water installation
because of the smooth interior surface aside from its high
resistant to acids.
COPPER PIPE
Correct Answer: It is a durable material which is extremely
corrosive-resistant.
K type.
Correct Answer: It is the heaviest type and is suitable for
underground installation.
L type.
Correct Answer: It is lighter type than K and is available in
both rigid and flexible type commonly used in residential
water supply line for radiant heating installations.
2
Types Properties Uses and
Practice Questions and Answers
Latest 2026 Sure Pass!!!
Standard pipe Double hub Single hub Hub less
Correct Answer: 4 variety of cast iron pipe
ACID RESISTANT CAST IRON PIPE
Correct Answer: Made of alloy of cast iron and silicon. It is
installed in chemical laboratories, industries or other
installations where acid waste is being discharged.
ASBESTOS PIPE
Correct Answer: It is made of asbestos fibers and Portland
cement. This pipe could be used as soil, waste or
ventilation pipe and downspout.
BITUMINOUS FIBER SEWER PIPE
Correct Answer: It is the cheapest of all types of pipe. It is
light in weight, sometimes recommended for house sewer
and for tank installations.
VITRIFIED CLAY PIPE
Correct Answer: It is considered as one of the oldest
materials used for sewer lines. It is made from clay cast
into length of 750mm or 0.75m treated with glazed
compound and heated in large kiln under a temperature of
1370 ºC making it impervious to moisture
LEAD PIPE
1
, Correct Answer: It is also one of the oldest plumbing
materials used by the Egyptians, Greeks and the Roman
Architects for soil, waste and ventilation pipe.
GALVANIZED STEEL PIPE
Correct Answer: It is made up of mild steel drawn through
a die and welded cast into 6m long. Steel pipe is
subjected to deposits of salt and lime which gradually
accumulate and eventually choke the flow of water. This
type of pipe is corroded by alkaline and acid water.
GALVANIZED WROUGHT IRON PIPE
Correct Answer: It is better than steel pipe for plumbing
installation. Test showed that wrought iron pipe is more
resistant to acid waste that the steel pipe.
BRASS PIPE
Correct Answer: It is the most expensive of all types of
pipe. This type is made of an alloy or zinc and copper
mixed a proportion of 15% and 85% respectively. This
pipe is superior material for waste and water installation
because of the smooth interior surface aside from its high
resistant to acids.
COPPER PIPE
Correct Answer: It is a durable material which is extremely
corrosive-resistant.
K type.
Correct Answer: It is the heaviest type and is suitable for
underground installation.
L type.
Correct Answer: It is lighter type than K and is available in
both rigid and flexible type commonly used in residential
water supply line for radiant heating installations.
2
