1|Page
CEPT; Bobtail Operations EXAM| 2025
Latest Updated Actual Questions With
Answers
At what PSI will the pressure relief valve open to release vapor - correct-answer-
250 psi
What do the hydrostatic relief valves help with? - correct-answer-help to protect
lines and equipment from over pressurization due to the effects of liquid
expansion , and are place where liquid propane can be trapped between two
positive shutoff valves, including back check valves
The liquid fill connection typically contains a ________that is equipped with a cap
to prevent debris from entering the valve - correct-answer-3 1/4'' ACME
connector
What are the dimensions for the vapor connector of the back of the truck -
correct-answer-1 3/4'' ACME
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Liquid internal valve - correct-answer-located at the liquid withdrawal connection
near the bottom or belly of the cargo tank
vapor internal valve - correct-answer-located at the vapor equalizing connection
a register - correct-answer-may be equipped with a ticket printer or an electronic
meter to ensure in gallons the amount of liquid deliver and print ticket
DOT requires bobtails in delivery service to limit the delivery hose to a nominal
inside diameter of - correct-answer-1 1/4'' or less
what is the most common cause of premature delivery on a hose - correct-
answer-abrasion
the openings on the back of the cargo tank foe the liquid fill and vapor equalizing
connections must be labeled either - correct-answer-vapor or liquid/spray fill
As part of the driver qualification file, how often must cdl drivers complete a
certificate of violations? - correct-answer-Annually
CEPT; Bobtail Operations EXAM| 2025
Latest Updated Actual Questions With
Answers
At what PSI will the pressure relief valve open to release vapor - correct-answer-
250 psi
What do the hydrostatic relief valves help with? - correct-answer-help to protect
lines and equipment from over pressurization due to the effects of liquid
expansion , and are place where liquid propane can be trapped between two
positive shutoff valves, including back check valves
The liquid fill connection typically contains a ________that is equipped with a cap
to prevent debris from entering the valve - correct-answer-3 1/4'' ACME
connector
What are the dimensions for the vapor connector of the back of the truck -
correct-answer-1 3/4'' ACME
, 2|Page
Liquid internal valve - correct-answer-located at the liquid withdrawal connection
near the bottom or belly of the cargo tank
vapor internal valve - correct-answer-located at the vapor equalizing connection
a register - correct-answer-may be equipped with a ticket printer or an electronic
meter to ensure in gallons the amount of liquid deliver and print ticket
DOT requires bobtails in delivery service to limit the delivery hose to a nominal
inside diameter of - correct-answer-1 1/4'' or less
what is the most common cause of premature delivery on a hose - correct-
answer-abrasion
the openings on the back of the cargo tank foe the liquid fill and vapor equalizing
connections must be labeled either - correct-answer-vapor or liquid/spray fill
As part of the driver qualification file, how often must cdl drivers complete a
certificate of violations? - correct-answer-Annually
