Red Seal IPT Exam Questions Answered Correctly Latest Update 2025-2026
Which of the methods below is not used for steel pipe manufacturing? - Answers Type L, lap
welded
Pipe is classed as either seam welded or seamless manufactured. True or False? Pg 2,4,6 -
Answers True
The standards for A-53 and A-106 are established by who? - Answers ASTM
A- 53 is a commonly used pipe. All A-53 pipe is classified as A-53, Grade B. True or False? Pg 12
- Answers False
What are the three general weight or wall thickness classifications for steel pipe? - Answers
Standard, Extra Strong or Extra Heavy, Double Extra Strong or Double Extra Heavy
For any steel pipe size: The ________ is the constant and the ________ varies. - Answers The O.D.
is constant and the I.D. varies
The pipe abbreviation NPS means: - Answers Nominal Pipe Size
Steel pipe in sizes up to 12" (300mm) are larger in outside diameter than their normal size, and
pipe in sizes over 12" have an outside diameter corresponding to the nominal size. True or False?
Pg 13,18 - Answers True
Wall thickness for standard weight pipe and schedule 40 are identical through the entire size
range. True or False? Pg 14 - Answers False
What is the actual outside diameter of an 8" (200mm) steel pipe? - Answers 8.625 inches
(219mm)
List 4 basic pipe finishes which are commercially available - Answers Threaded, Plain, Beveled
and Grooved
Threaded couplings supplied on pipe sizes up to 2" (50mm) are ___________ threaded; while all
extra strong and double extra strong supplied couplings are __________ threaded. - Answers
Parallel, Taper
All steel pipe manufactured in North America under the ASTM, API or CSA standard will have
identical specification markings. True or False? Pg 48 -50 - Answers False
The commonly used steel pipe, referred to as black iron pipe, has a lacquer finish to prevent
corrosion. True or False? Pg 51 - Answers True
Wrought iron pipe is another name for wrought steel pipe. True or False? Pg 53 - Answers False
State the two main advantages of stainless steel pipe over carbon steel pipe - Answers
,Improved corrosion resistance, higher temperature resistance
Copper and red brass pipe is actually tubing. Therefor the outside diameter is not the same as
steel pipe for sizes up to 12 inch (300mm). True or False? Pg 59 - Answers False
Cast iron pressure pipe was originally designed for underground service. In modern-day
construction projects for gas, water, or other liquids it is: - Answers Being replaced by plastic
pipe
Cast iron steel pipe is still commonly used in many commercial buildings because: - Answers
Some building code regulations prohibit plastic pipe
What is a typical use of silicon iron pipe? - Answers Laboratory drainage and waste
What are two basic categories of plastic pipe? - Answers Thermoplastic and thermoset
ABS and PVC are types of thermoset plastic pipe. True or False? Pg 69 - Answers False
Plastic metal composition pipe uses a ___________ Core laminated between interior and exterior
layers of _____________. - Answers Metal, thermoplastic
Plastic metal composition pipe results in a pipe that is as ________________ as a plastic pipe, and
has the _______________ of a steel pipe. - Answers Durable, strength
ABS pipe, rated at 230 psi (1590 kPa), is ____________ in color. - Answers Blue grey
PVC pipe can be joined by the following methods: - Answers Cementing, O rings, threading,
grooved joints, and flanging
PVDF pipe has a maximum operating temperature of 280°F (138°C) and is safely used for: -
Answers Wet and dry chloride, bromine, pure water and halogens
When solvent cementing plastic pipe, the joining surfaces are softened by: - Answers Primer,
cement, primer and cement combination
What schedule of pipe is recommended for threading? - Answers Schedule 80
What is used to keep a plastic pipe round while threading? - Answers Aluminum or wooden
plugs
Plastic pipe flanges are manufactured to the same dimensions as: - Answers ANSI - 150 lb steel
flanges
An 8 inch (200mm) tube will have an outside diameter equal to an 8 inch (200mm) pipe. True or
False? Pg 86 - Answers False
What are the three main categories of tubing? - Answers Structural, mechanical and pressure
, How is structural tube sized? - Answers Outside measurement and wall thickness
Mechanical tube is designed to carry fluids under pressure. True or false? Pg 86 - Answers False
Coiled aluminum tubing is generally supplied in thicknesses up to 3/8" (9.5mm). True or false?
Pg 89 - Answers False
Tube types K, L and M are sized by the actual outside diameter measurement. True or false? Pg
91 - Answers False
What is the easy way to determine the O.D. of a type K, L or M tube? - Answers Add 1/8"
(3.175mm) to the nominal size
With reference to copper tube what do the following abbreviated letters stand for: ACR, GP DWV
- Answers Air conditioning and refrigeration, General purpose, drainage waste and vent
Tube types K, L and M are only available in coils of "soft" copper. True or false? Pg 92 - Answers
False
State the color code for each of the copper types: K, L, M, DWV - Answers K-Green, L-Blue, M-
Red, DWV-yellow
What are the four major groupings for carbon steel and/or stainless steel tube? - Answers Boiler
and superheater tube, heat exchanger and condenser tube, still tube, general-purpose tube
What is the purpose of still tubing? - Answers Can withstand temperatures higher externally
than the internal fluid
Name two special application tubes - Answers Copper brazed steel tube, bundled metallic or
plastic tube
Which type of tube bundle is best suited for application requiring frequent bends or turns? -
Answers Spiral lay bundled
Compression type tube benders are usually limited to what size of tube? - Answers 3/4" (19mm)
What is the purpose of the "Placement Link" on a hand tube bender? - Answers Indicates where
to place the measured mark for the required bend
State the two principal functions or reasons for the use of valves: - Answers Stop or start flow,
Regulate flow
List 8 basic types of valves available - Answers Gate, Globe, Check, Diaphragm, Ball, Butterfly,
Plug, Relief
Describe where a globe valve should be used as compared to a gate valve - Answers Gate are
used for on-off service and designed to operate fully open or fully closed, Globe are used in
Which of the methods below is not used for steel pipe manufacturing? - Answers Type L, lap
welded
Pipe is classed as either seam welded or seamless manufactured. True or False? Pg 2,4,6 -
Answers True
The standards for A-53 and A-106 are established by who? - Answers ASTM
A- 53 is a commonly used pipe. All A-53 pipe is classified as A-53, Grade B. True or False? Pg 12
- Answers False
What are the three general weight or wall thickness classifications for steel pipe? - Answers
Standard, Extra Strong or Extra Heavy, Double Extra Strong or Double Extra Heavy
For any steel pipe size: The ________ is the constant and the ________ varies. - Answers The O.D.
is constant and the I.D. varies
The pipe abbreviation NPS means: - Answers Nominal Pipe Size
Steel pipe in sizes up to 12" (300mm) are larger in outside diameter than their normal size, and
pipe in sizes over 12" have an outside diameter corresponding to the nominal size. True or False?
Pg 13,18 - Answers True
Wall thickness for standard weight pipe and schedule 40 are identical through the entire size
range. True or False? Pg 14 - Answers False
What is the actual outside diameter of an 8" (200mm) steel pipe? - Answers 8.625 inches
(219mm)
List 4 basic pipe finishes which are commercially available - Answers Threaded, Plain, Beveled
and Grooved
Threaded couplings supplied on pipe sizes up to 2" (50mm) are ___________ threaded; while all
extra strong and double extra strong supplied couplings are __________ threaded. - Answers
Parallel, Taper
All steel pipe manufactured in North America under the ASTM, API or CSA standard will have
identical specification markings. True or False? Pg 48 -50 - Answers False
The commonly used steel pipe, referred to as black iron pipe, has a lacquer finish to prevent
corrosion. True or False? Pg 51 - Answers True
Wrought iron pipe is another name for wrought steel pipe. True or False? Pg 53 - Answers False
State the two main advantages of stainless steel pipe over carbon steel pipe - Answers
,Improved corrosion resistance, higher temperature resistance
Copper and red brass pipe is actually tubing. Therefor the outside diameter is not the same as
steel pipe for sizes up to 12 inch (300mm). True or False? Pg 59 - Answers False
Cast iron pressure pipe was originally designed for underground service. In modern-day
construction projects for gas, water, or other liquids it is: - Answers Being replaced by plastic
pipe
Cast iron steel pipe is still commonly used in many commercial buildings because: - Answers
Some building code regulations prohibit plastic pipe
What is a typical use of silicon iron pipe? - Answers Laboratory drainage and waste
What are two basic categories of plastic pipe? - Answers Thermoplastic and thermoset
ABS and PVC are types of thermoset plastic pipe. True or False? Pg 69 - Answers False
Plastic metal composition pipe uses a ___________ Core laminated between interior and exterior
layers of _____________. - Answers Metal, thermoplastic
Plastic metal composition pipe results in a pipe that is as ________________ as a plastic pipe, and
has the _______________ of a steel pipe. - Answers Durable, strength
ABS pipe, rated at 230 psi (1590 kPa), is ____________ in color. - Answers Blue grey
PVC pipe can be joined by the following methods: - Answers Cementing, O rings, threading,
grooved joints, and flanging
PVDF pipe has a maximum operating temperature of 280°F (138°C) and is safely used for: -
Answers Wet and dry chloride, bromine, pure water and halogens
When solvent cementing plastic pipe, the joining surfaces are softened by: - Answers Primer,
cement, primer and cement combination
What schedule of pipe is recommended for threading? - Answers Schedule 80
What is used to keep a plastic pipe round while threading? - Answers Aluminum or wooden
plugs
Plastic pipe flanges are manufactured to the same dimensions as: - Answers ANSI - 150 lb steel
flanges
An 8 inch (200mm) tube will have an outside diameter equal to an 8 inch (200mm) pipe. True or
False? Pg 86 - Answers False
What are the three main categories of tubing? - Answers Structural, mechanical and pressure
, How is structural tube sized? - Answers Outside measurement and wall thickness
Mechanical tube is designed to carry fluids under pressure. True or false? Pg 86 - Answers False
Coiled aluminum tubing is generally supplied in thicknesses up to 3/8" (9.5mm). True or false?
Pg 89 - Answers False
Tube types K, L and M are sized by the actual outside diameter measurement. True or false? Pg
91 - Answers False
What is the easy way to determine the O.D. of a type K, L or M tube? - Answers Add 1/8"
(3.175mm) to the nominal size
With reference to copper tube what do the following abbreviated letters stand for: ACR, GP DWV
- Answers Air conditioning and refrigeration, General purpose, drainage waste and vent
Tube types K, L and M are only available in coils of "soft" copper. True or false? Pg 92 - Answers
False
State the color code for each of the copper types: K, L, M, DWV - Answers K-Green, L-Blue, M-
Red, DWV-yellow
What are the four major groupings for carbon steel and/or stainless steel tube? - Answers Boiler
and superheater tube, heat exchanger and condenser tube, still tube, general-purpose tube
What is the purpose of still tubing? - Answers Can withstand temperatures higher externally
than the internal fluid
Name two special application tubes - Answers Copper brazed steel tube, bundled metallic or
plastic tube
Which type of tube bundle is best suited for application requiring frequent bends or turns? -
Answers Spiral lay bundled
Compression type tube benders are usually limited to what size of tube? - Answers 3/4" (19mm)
What is the purpose of the "Placement Link" on a hand tube bender? - Answers Indicates where
to place the measured mark for the required bend
State the two principal functions or reasons for the use of valves: - Answers Stop or start flow,
Regulate flow
List 8 basic types of valves available - Answers Gate, Globe, Check, Diaphragm, Ball, Butterfly,
Plug, Relief
Describe where a globe valve should be used as compared to a gate valve - Answers Gate are
used for on-off service and designed to operate fully open or fully closed, Globe are used in
