RMGA Exam with verified answers
How heavy is gasoline vapor? - ** VERIFIED ANSWERS **✔✔2-4 times weight of air
What is the most harmful byproduct of combustion? - ** VERIFIED ANSWERS
**✔✔Carbon Monoxide
What is the ignition temperature of natural gas? - ** VERIFIED ANSWERS **✔✔1100-1200
degrees Farenheit
What is the density of propane vapor? - ** VERIFIED ANSWERS **✔✔1.56
What are the byproducts of combustion? - ** VERIFIED ANSWERS **✔✔CO2, Water
Vapor, Heat
What is the ratio for complete combustion of natural gas? - ** VERIFIED ANSWERS **✔✔1
part natural gas to 10 part air
What is the maximum length of a flexible gas connector going to a furnace? - ** VERIFIED
ANSWERS **✔✔6 feet
What are the materials that can be used for piping natural gas? (4) - ** VERIFIED
ANSWERS **✔✔Iron/steel, galvanize/black, CSST, Polyethylene
What is an anode used for? - ** VERIFIED ANSWERS **✔✔To provide cathodic protection
, What type of gas appliance is not require to have a shut off valve located in the same room? -
** VERIFIED ANSWERS **✔✔Decorative appliance and room heaters
How close should a shut off valve be located to an appliance? - ** VERIFIED ANSWERS
**✔✔Within 6 feet of the appliance and in the same room
What is the minimum pipe size to a furnace and water heater location requested by
Dominion? - ** VERIFIED ANSWERS **✔✔1"
What is the maximum pressure allowed before the use of welded joints is required? - **
VERIFIED ANSWERS **✔✔5 PSIG
When is a tracer wire used? - ** VERIFIED ANSWERS **✔✔For underground non-metallic
(plastic) gas lines
What methods can be used to join plastic gas pipe? - ** VERIFIED ANSWERS
**✔✔Approved mechanical fittings and heat fusion
On an elevated pressure system, where are shut off valves required? - ** VERIFIED
ANSWERS **✔✔Upstream of MP regulator
What type of fittings can not be concealed? (7) - ** VERIFIED ANSWERS **✔✔Unions,
bushings, regulators, shut off valves, flex connectors, gas hoses, automatic valves
When using a meter for spot testing, how long should the half cubic foot dial be watched? -
** VERIFIED ANSWERS **✔✔5 minutes
How is CSST protected from puncture threats? - ** VERIFIED ANSWERS **✔✔striker
plates
How heavy is gasoline vapor? - ** VERIFIED ANSWERS **✔✔2-4 times weight of air
What is the most harmful byproduct of combustion? - ** VERIFIED ANSWERS
**✔✔Carbon Monoxide
What is the ignition temperature of natural gas? - ** VERIFIED ANSWERS **✔✔1100-1200
degrees Farenheit
What is the density of propane vapor? - ** VERIFIED ANSWERS **✔✔1.56
What are the byproducts of combustion? - ** VERIFIED ANSWERS **✔✔CO2, Water
Vapor, Heat
What is the ratio for complete combustion of natural gas? - ** VERIFIED ANSWERS **✔✔1
part natural gas to 10 part air
What is the maximum length of a flexible gas connector going to a furnace? - ** VERIFIED
ANSWERS **✔✔6 feet
What are the materials that can be used for piping natural gas? (4) - ** VERIFIED
ANSWERS **✔✔Iron/steel, galvanize/black, CSST, Polyethylene
What is an anode used for? - ** VERIFIED ANSWERS **✔✔To provide cathodic protection
, What type of gas appliance is not require to have a shut off valve located in the same room? -
** VERIFIED ANSWERS **✔✔Decorative appliance and room heaters
How close should a shut off valve be located to an appliance? - ** VERIFIED ANSWERS
**✔✔Within 6 feet of the appliance and in the same room
What is the minimum pipe size to a furnace and water heater location requested by
Dominion? - ** VERIFIED ANSWERS **✔✔1"
What is the maximum pressure allowed before the use of welded joints is required? - **
VERIFIED ANSWERS **✔✔5 PSIG
When is a tracer wire used? - ** VERIFIED ANSWERS **✔✔For underground non-metallic
(plastic) gas lines
What methods can be used to join plastic gas pipe? - ** VERIFIED ANSWERS
**✔✔Approved mechanical fittings and heat fusion
On an elevated pressure system, where are shut off valves required? - ** VERIFIED
ANSWERS **✔✔Upstream of MP regulator
What type of fittings can not be concealed? (7) - ** VERIFIED ANSWERS **✔✔Unions,
bushings, regulators, shut off valves, flex connectors, gas hoses, automatic valves
When using a meter for spot testing, how long should the half cubic foot dial be watched? -
** VERIFIED ANSWERS **✔✔5 minutes
How is CSST protected from puncture threats? - ** VERIFIED ANSWERS **✔✔striker
plates
