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CWEA Valve and Valve System Operations Exam
Practice Questions And Correct Answers||Verified
Exam!!|| (Verified Answers) Plus Rationale 2026/2027
Q&A| Instant Download Pdf
What valve is described as quarter turn valve that has a
fat circular disc as its closing element?
A.gate valve
B.butterfly valve
C.back water valve
D.diaphragm valve - Answer-Butterfly valve
What is the value described as small bore valve fitted in a
parallel to large main valve?
A.globe valve
B.needle valve
C.bypass valve
D.pressure relief valve - Answer-Bypass valve
What valve material provides high strength and excellent
resistance to wear, seizure, galling, erosion, and
oxidation?
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A cast-iron
B.farro steel
C.stainless steel
D.Malleable iron - Answer-Stainless steel
What does the number 150 stand for on a valve
identification stamp?
A metric size in mm
B.basic water working pressure
C.basic steamworking pressure
D.basic steam working temperature - Answer-Basic steam
working pressure
What valve is described as quarter turn valve with
characteristics that included quick opening and positive
shut off?
A. ball valve
B.gate valve
C.globe valve
D.needle valve - Answer-Ball valve
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What valve is described as a valve designed to stop
reverse flow in a sanitary drainage system?
A.backflow valve
B.butterfly valve
C.back water valve
D.backflow preventer - Answer-Backwater valve
In what position would a swing check be installed?
A.vertical flow down or up
B.horizontal hinge pin vertical
C.horizontal position flow above disk only
D.horizontal or vertical flow up position - Answer-
Horizontal or vertical flow up position
What operation condition is suitable for swing check
valve?
A.low velocity
B.high velocity
C.rapid pressure fluctuation
D.sudden stoppage in flow - Answer-Low velocity
In what position should a swing check hinge pin be?
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A.vertical
B.horizontal
C.45° from vertical
D.60° from vertical - Answer-Horizontal
What is the minimum distance from another fitting that a
butterfly valve should be installed?
A.2 diameters
B.6 diameter
C.8 diameter
D.10 diameters - Answer-6 diameters
What position is recommended for a butterfly stem with an
actuator installed?
A.horizontal
B.at angles of 45°
C.vertical directly above the actuator
D.vertical directly below the actuator - Answer-Vertically
directly below the actuator
CWEA Valve and Valve System Operations Exam
Practice Questions And Correct Answers||Verified
Exam!!|| (Verified Answers) Plus Rationale 2026/2027
Q&A| Instant Download Pdf
What valve is described as quarter turn valve that has a
fat circular disc as its closing element?
A.gate valve
B.butterfly valve
C.back water valve
D.diaphragm valve - Answer-Butterfly valve
What is the value described as small bore valve fitted in a
parallel to large main valve?
A.globe valve
B.needle valve
C.bypass valve
D.pressure relief valve - Answer-Bypass valve
What valve material provides high strength and excellent
resistance to wear, seizure, galling, erosion, and
oxidation?
,2|Page
A cast-iron
B.farro steel
C.stainless steel
D.Malleable iron - Answer-Stainless steel
What does the number 150 stand for on a valve
identification stamp?
A metric size in mm
B.basic water working pressure
C.basic steamworking pressure
D.basic steam working temperature - Answer-Basic steam
working pressure
What valve is described as quarter turn valve with
characteristics that included quick opening and positive
shut off?
A. ball valve
B.gate valve
C.globe valve
D.needle valve - Answer-Ball valve
,3|Page
What valve is described as a valve designed to stop
reverse flow in a sanitary drainage system?
A.backflow valve
B.butterfly valve
C.back water valve
D.backflow preventer - Answer-Backwater valve
In what position would a swing check be installed?
A.vertical flow down or up
B.horizontal hinge pin vertical
C.horizontal position flow above disk only
D.horizontal or vertical flow up position - Answer-
Horizontal or vertical flow up position
What operation condition is suitable for swing check
valve?
A.low velocity
B.high velocity
C.rapid pressure fluctuation
D.sudden stoppage in flow - Answer-Low velocity
In what position should a swing check hinge pin be?
, 4|Page
A.vertical
B.horizontal
C.45° from vertical
D.60° from vertical - Answer-Horizontal
What is the minimum distance from another fitting that a
butterfly valve should be installed?
A.2 diameters
B.6 diameter
C.8 diameter
D.10 diameters - Answer-6 diameters
What position is recommended for a butterfly stem with an
actuator installed?
A.horizontal
B.at angles of 45°
C.vertical directly above the actuator
D.vertical directly below the actuator - Answer-Vertically
directly below the actuator
