NGA 70 REVIEW EXAM Questions and verified Answers |Already Graded A+| 2026 Brand New Version!!!

NGA 70 REVIEW EXAM Questions and
verified Answers |Already Graded A+|
2026 Brand New Version!!!

Moist soil effect on underground leak - Correct Answer -creates a
barrier to traveling upwards, accumulating underground may cause
horizontal migration




Dry soil effect on underground leak - Correct Answer -gas moves freely,
may absorb odorants




Frozen soil effect on underground leak - Correct Answer -creates a
barrier, may cause horizontal migration




Leak migration boundaries are defined at - Correct Answer -0.0% gas in
air CGI reading

, Over pressurization causes - Correct Answer -damaged regulator,
incorrect valve adjustment, employee error, vandalism, vent sealing




Over pressurization indicators - Correct Answer -open relief valve,
venting, odor complaints, alarms, explosions




If over pressurization occurs - Correct Answer -notify appropriate
personnel
assist in shutting down lines
eliminate ignition sources
determine extent of area effected
determine cause
make repairs




under pressure causes - Correct Answer -severed lines, regulator failure,
loss of supply, high demand, vandalism