Task 70, 71, 6-8A Exam Questions With All Correct
Answers 2026
1. What is an AOC? Abnormal Operating Conditions: A condition identified by the
operator
that may indicate a malfunction of a component or deviation from
normal operations that may indicate a condition exceeding design
limits or result in a hazard to persons, property or the
environment
2. What is Task 70? Properties of Natural Gas and Abnormal Operating Conditions
3. What makes up 96% of Methane makes up about 95% of Natural Gas
Natural gas?
4. What is added by need to be tak- en? (5)
gas companies to
give gas a distinct
smell? 8. What are some exam-
What does
National Grid use
specifically?
5. Does Natural gas
ex- pand or
contract when
heated?
6. Does Natural gas
ex- pand or
contract when
cooled?
7. If improper
odoriza- tion is
found, what steps
1/
13
, Task 70, 71, 6-8A Exam Questions With All Correct
Answers 2026
Odorants are added by gas
companies to give gas a Natural gas contracts when cooled
distinct smell National Grid
uses mercaptan to make 1. Perform leak investigation with CGI to identify migrating gas
2. Keep public a safe distance away
sure people can smell gas
3. Advise dispatch and/or assigned field rep
4. Contact pressure department
5. Eliminate ignition sources
Natural gas expands when heated
- No smell at an obvious leak
ples of improper odor- - Very strong odor in the area
ization? - Burnt vegetation with obvious leak and no odor
2/
13
Answers 2026
1. What is an AOC? Abnormal Operating Conditions: A condition identified by the
operator
that may indicate a malfunction of a component or deviation from
normal operations that may indicate a condition exceeding design
limits or result in a hazard to persons, property or the
environment
2. What is Task 70? Properties of Natural Gas and Abnormal Operating Conditions
3. What makes up 96% of Methane makes up about 95% of Natural Gas
Natural gas?
4. What is added by need to be tak- en? (5)
gas companies to
give gas a distinct
smell? 8. What are some exam-
What does
National Grid use
specifically?
5. Does Natural gas
ex- pand or
contract when
heated?
6. Does Natural gas
ex- pand or
contract when
cooled?
7. If improper
odoriza- tion is
found, what steps
1/
13
, Task 70, 71, 6-8A Exam Questions With All Correct
Answers 2026
Odorants are added by gas
companies to give gas a Natural gas contracts when cooled
distinct smell National Grid
uses mercaptan to make 1. Perform leak investigation with CGI to identify migrating gas
2. Keep public a safe distance away
sure people can smell gas
3. Advise dispatch and/or assigned field rep
4. Contact pressure department
5. Eliminate ignition sources
Natural gas expands when heated
- No smell at an obvious leak
ples of improper odor- - Very strong odor in the area
ization? - Burnt vegetation with obvious leak and no odor
2/
13
