BOMI: Air Handling, Water Treatment & Plumbing
Systems Exam || Most Recent Exam 2026-2027 Actual
Complete Real Exam Questions And Correct Answers
(Verified Answers) Already Graded A+ | Guaranteed
Success!! | Newest Exam | Just Released!!
1 - What material is a mixture of iron and iron silicate? - ANSWER
-Wrought iron
is a mixture of iron and iron
silicate.
2 - What are benefits of using plastic for piping, fittings, and
valves? - ANSWER -Lightweight, relatively inexpensive, easy to
assemble and install and corrosion resistant.
3 - On what basis is copper tubing standardized? - ANSWER -
Wall thickness
schedules
4 - What are some advantages of tubing over piping? -
ANSWER -Bending
quality
,Less turbulence
Economy of space and weight
Flexibility
Fewer Fittings
Appearance
Fabrication
Easy assembly and disassembly
5 - How is smaller and nominally sized piping measured? -
ANSWER Nominally sized piping is an approximate inside
diameter in the pipe up to and including 12 inches.
6 - How is larger sized pipe measured? - ANSWER -Larger pipe
is measured by
outside
diameter.
7 - Which is the best method for connecting small pipe
lengths and low
pressures? - ANSWER -Threaded
fittings
,8 - Which is the best method for securing threaded or screwed
pipe connections? - ANSWER -Tapered male threads are cut on
each end of the pope and tapered female screwed fitting such
as unions, couplings, elbows, and so forth are used to join
lengths with a lubricant and a wrench.
9 - What are the four requirements for making a proper flange
joint for a pipe? -
ANSWER -Thorough
cleaning
Accurate Alignment
Use of the proper gasket
Tightening of bolts in the proper order.
10 - How is welding defined? - ANSWER -Welding forms a
joint by fusing
metals at temperatures above their
melting points.
11 - What is the difference between brazing and Soldering? -
ANSWER -The difference between brazing and soldering is the
flow temperature of the solder.
12 - What is the purpose of a cap or plug? - ANSWER -To close
off the end of a
, fitting or a
pipe.
Cap - Closes off female thread
Plug - Closes off male thread
13 - What are the characteristics of a slip expansion joint? -
ANSWER -Allows
the expansion of pipe caused by
temperature change.
Consists of a plunger which the pipe is connected.
14 - Where is an expansion pipe bend often used? - ANSWER
-When there is
enough space expansion pipe bends are
often used.
They permit the free expansion of piping which only a small drip
in pressure due
to the added length through which the fluid
must travel.
15 - How can water hammer or excessive water rise be limited?
- ANSWER -Air
chambers or relief valves may limit excessive water rise or
water hammer.
Systems Exam || Most Recent Exam 2026-2027 Actual
Complete Real Exam Questions And Correct Answers
(Verified Answers) Already Graded A+ | Guaranteed
Success!! | Newest Exam | Just Released!!
1 - What material is a mixture of iron and iron silicate? - ANSWER
-Wrought iron
is a mixture of iron and iron
silicate.
2 - What are benefits of using plastic for piping, fittings, and
valves? - ANSWER -Lightweight, relatively inexpensive, easy to
assemble and install and corrosion resistant.
3 - On what basis is copper tubing standardized? - ANSWER -
Wall thickness
schedules
4 - What are some advantages of tubing over piping? -
ANSWER -Bending
quality
,Less turbulence
Economy of space and weight
Flexibility
Fewer Fittings
Appearance
Fabrication
Easy assembly and disassembly
5 - How is smaller and nominally sized piping measured? -
ANSWER Nominally sized piping is an approximate inside
diameter in the pipe up to and including 12 inches.
6 - How is larger sized pipe measured? - ANSWER -Larger pipe
is measured by
outside
diameter.
7 - Which is the best method for connecting small pipe
lengths and low
pressures? - ANSWER -Threaded
fittings
,8 - Which is the best method for securing threaded or screwed
pipe connections? - ANSWER -Tapered male threads are cut on
each end of the pope and tapered female screwed fitting such
as unions, couplings, elbows, and so forth are used to join
lengths with a lubricant and a wrench.
9 - What are the four requirements for making a proper flange
joint for a pipe? -
ANSWER -Thorough
cleaning
Accurate Alignment
Use of the proper gasket
Tightening of bolts in the proper order.
10 - How is welding defined? - ANSWER -Welding forms a
joint by fusing
metals at temperatures above their
melting points.
11 - What is the difference between brazing and Soldering? -
ANSWER -The difference between brazing and soldering is the
flow temperature of the solder.
12 - What is the purpose of a cap or plug? - ANSWER -To close
off the end of a
, fitting or a
pipe.
Cap - Closes off female thread
Plug - Closes off male thread
13 - What are the characteristics of a slip expansion joint? -
ANSWER -Allows
the expansion of pipe caused by
temperature change.
Consists of a plunger which the pipe is connected.
14 - Where is an expansion pipe bend often used? - ANSWER
-When there is
enough space expansion pipe bends are
often used.
They permit the free expansion of piping which only a small drip
in pressure due
to the added length through which the fluid
must travel.
15 - How can water hammer or excessive water rise be limited?
- ANSWER -Air
chambers or relief valves may limit excessive water rise or
water hammer.
