Questions and Correct Answers.
2025/2026.
required for all piping systems that serve _______ psig appliance systems. normally operated at 11
in WC pressure
1/2
required for all piping systems that serve 1/2 psig appliance systems. normally operated at ______ in
WC pressure
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
6
600
Fire Extinquishers must have minimum capacity of _____ lbs dry chemical with a ___ : ___ rating
18
B:C
Cargo Tank Inspection and Tests
V= ____ ____ inspection every __ years
K= ____ test every ____ years
P= ____ test every ____ years
I= ____ ____ inspection every __ years
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
1/5
A propane leak can
Displace Oxygen an causes suffocation
Bulk plant emergency shutoff for 4001 gal aggregate wc or more shall have
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 _____
, 5
painted
All underground pipe, metallic or poly must be covered by ____ inches or ____ inches if damage is
likely
12
18
Outdoor metallic piping shall have ___ pressure limits
no
Polyethylene piping systems shall be limited to ____ psig
30
Polyethylene piping shall be used _______ only
underground
Texas school leak tests must last a minimum of ____ minutes
30
LPG form ____ must be keep on file for ____ years
30
5
Texas school leak tests must be done every ____ years
2
The term NQT on cargo tanks means
Non-Quenched Tempered
Single family home pressure testing must last a minimum of ___ minutes
10
Pressure testing and inspection should be no less than ____ hour for every ____ feet
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
4.2
40
cylinders with 4.2 lbs propane through 40 lbs propane capacity for vapor service shall have ____
____ ____ and a ____ ____ ____ _____
overfilling prevention device
fixed liquid level gauge