LP-GAS TEXAS BOBTAIL EXAM QUESTIONS AND CORRECT ANSWERS. VERIFIED 2025/2026.

LP-GAS TEXAS BOBTAIL EXAM
QUESTIONS AND CORRECT ANSWERS.
VERIFIED 2025/2026.




Required for all piping systems that serve _______ psig appliance systems. normally operated at
11 in WC pressure - ANS 1/2



required for all piping systems that serve 1/2 psig appliance systems. normally operated at
______ in WC pressure - ANS 11



above group LP-gas containers must not be located within ____ feet of the vertical plane
beneath overhead electric power lines that are over _____ volts - ANS 6

600



Fire Extinquishers must have minimum capacity of _____ lbs dry chemical with a ___ : ___
rating - ANS 18

B:C



Cargo Tank Inspection and Tests

V= ____ ____ inspection every __ years

K= ____ test every ____ years

P= ____ test every ____ years

1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

,I= ____ ____ inspection every __ years - ANS external visual inspection 1 year

leak test 1 year

pressure test 5 years

internal visual inspection 5 years



what is the lower limit of combustibility of odorized LP-gas - ANS 1/5



A propane leak can - ANS Displace Oxygen an causes suffocation



Bulk plant emergency shutoff for 4001 gal aggregate wc or more shall have - ANS opening of
1 1/4 in or more

pneumatically operated ESV

pneumatically operated internal valves

back-check valves for into tank only



Thermal element must be located within ____ ft of the ESV and can NOT BE _____ - ANS 5

painted



All underground pipe, metallic or poly must be covered by ____ inches or ____ inches if damage
is likely - ANS 12

18



Outdoor metallic piping shall have ___ pressure limits - ANS no



Polyethylene piping systems shall be limited to ____ psig - ANS 30



2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

, Polyethylene piping shall be used _______ only - ANS underground



Texas school leak tests must last a minimum of ____ minutes - ANS 30



LPG form ____ must be keep on file for ____ years - ANS 30

5



Texas school leak tests must be done every ____ years - ANS 2



The term NQT on cargo tanks means - ANS Non-Quenched Tempered



Single family home pressure testing must last a minimum of ___ minutes - ANS 10



Pressure testing and inspection should be no less than ____ hour for every ____ feet -
ANS 1/2

500



cylinders with ____ lbs propane through ____ lbs propane capacity for vapor service shall have
overfilling prevention device and a fixed liquid level gauge - ANS 4.2

40



cylinders with 4.2 lbs propane through 40 lbs propane capacity for vapor service shall have ____
____ ____ and a ____ ____ ____ _____ - ANS overfilling prevention device

fixed liquid level gauge



cylinders are designed with atleast ____ psig service pressure - ANS 240


3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.