CM 2116 FINAL ACTUAL EXAM 2026 BANK MOST EXAM QUESTIONS WILL COME FROM HERE /ALREADY GRADED A+

CM 2116 FINAL ACTUAL EXAM 2026 BANK MOST EXAM QUESTIONS
WILL COME FROM HERE /ALREADY GRADED A+


In HVAC symbols, the Return Air is shown by.............. .
a. Slash plus a little leg to the right "ʎ"
b. Simple slash "/"
c. "X" - ANSWER-b. Simple slash "/"


Select the best description for "Waste Stack" as Plumbing terminology.


Select one:
a. A water supply pipe that extends vertically one story or more to carry water to
fixtures.
b. A U-shaped pipe below plumbing fixtures that holds water to prevent odor and
sewer gas from entering the fixture.
c. The portion of a pipe or fitting continuing in a straight line in the direction of
flow in which it is connected.
d. A vertical pipe that runs one or more floors and carries the discharge of fixtures
other than water closets and similar fixtures.
e. A pipe that carries the discharge of water closets or other similar fixtures. -
ANSWER-A vertical pipe that runs one or more floors and carries the discharge of
fixtures other than water closets and similar fixtures.


Pipes made of copper, plastic, galvanized steel, or cast iron. - ANSWER-
Residential piping,
Steel pipe with welded or threaded connections and fittings.


Residential piping - ANSWER-Industrial piping

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,The air supplied through pipes to allow gravity flow of drainage is called................
.


Select one:
a. Trap
b. Vent
c. Return Air - ANSWER-vent


Place .......................traps in hot water pipes to reduce heat loss from excess hot
water in the pipes.


Select one:
a. Thermosiphon
b. P
c. S - ANSWER-a. Thermosiphon


Select the best description for "Run" as Plumbing terminology.


Select one:
a. A U-shaped pipe below plumbing fixtures that holds water to prevent odor and
sewer gas from entering the fixture.
b. The portion of a pipe or fitting continuing in a straight line in the direction of
flow in which it is connected.
c. A water supply pipe that extends vertically one story or more to carry water to
fixtures.



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,d. A vertical pipe that runs one or more floors and carries the discharge of fixtures
other than water closets and similar fixtures.
e. A pipe that carries the discharge of water closets or other similar fixtures. -
ANSWER-The portion of a pipe or fitting continuing in a straight line in the
direction of flow in which it is connected.


What is the most common pipe fitting, is used to combine (or divide) fluid flow?


Select one:
a. Tee-connection
b. L-connection
c. Y-connection - ANSWER-a. Tee-connection


Needle valve: - ANSWER-Controlling flow rate


Gate, plug or ball valves: - ANSWER-Isolation


Check valve: - ANSWER-Preventing reverse flow (non-return)


Globe valve: - ANSWER-Throttling


Give the name of a steel pipe, protected with a coat of varnish, that is used for
natural gas.


Select one:
a. Blue Pipe
b. Grey Pipe
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, c. Red Pipe
d. Black Pipe - ANSWER-Black Pipe


Give the proper term for a vented fitting that provides a liquid seal to prevent the
emission of sewer gases without affecting the flow of sewage or wastewater.
Select one:
a. Stack
b. Clean out
c. Drain
d. Trap - ANSWER-Trap


In HVAC symbols, the Exhaust Air is shown by.............. .


Select one:
a. Slash plus a little leg to the right "ʎ"
b. "X"
c. Simple slash "/" - ANSWER-Slash plus a little leg to the right "ʎ"


Select the correct option for following description in plumbing drawings.


"Any pipe that carries wastewater in a building drainage system."




Select one:
a. Soil pipe
b. Drain

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