COF G-98 Handling, Use and Storage of Flammable
Compressed Gases Exam with all Correct & 100% Verified
Answers |Already Graded A+
Combustible Waste ✔Correct Answer-Any substance, item or other organic or inorganic
matter that presents a fire hazard and is a byproduct or residue of the construction, use or
occupancy of any premises, or any activity conducted thereon, that has no economic value in
connection with such use or occupancy.
Compressed Gas ✔Correct Answer-A material, or mixture of materials that is a gas at 68F or
less at 14.7 psia of pressure; and has a boiling point of 68F or less at 14.7 psia that is either
liquefied, non-liquefied or in solution at that temperature and pressure, except gases which
have no other health-or physical-hazard properties that are not considered to be compressed
until the pressure in the packaging exceeds 41 psia at 68F
Compressed Gas Container ✔Correct Answer-A pressure container designed to hold
compressed gases at pressures greater than 1 atmosphere at 68F. A compressed gas container is
a container that stores highly pressurized gas.
Compressed Gas System ✔Correct Answer-An assembly of components, such as containers,
reactors, pumps, compressors and connecting piping and tubing, designed to contain, distribute
or transport compressed gases.
Containment system ✔Correct Answer-A gas-tight recovery system comprised of devices or
equipment which, when placed over or around the portion of the compressed gas container
that is leaking, stops or controls the escape of gas from the container
Containment vessel ✔Correct Answer-A gas-tight vessel which, when installed or placed over
or around a leaking compressed gas container, confines the container and the gas leaking there
from.
DOTn ✔Correct Answer-United States Department of Transportation, n=US regulations, not
Canadian
Explosion ✔Correct Answer-An effect produced by the sudden violent expansion of gases,
whether or not accompanied by a shock wave or disruption, of enclosing materials
Excess Flow Valve ✔Correct Answer-A valve inserted into a compressed gas container that is
designed to shut off the flow of gas in the event that its predetermined flow is exceeded
, Excess Flow Control ✔Correct Answer-A fail-safe system or other approved device, equipment
or system designed to shut off flow caused by a rupture in a pressurized piping system.
Exhausted Enclosure ✔Correct Answer-A device, typically consisting of a hood equipped with
a fan that serves to capture and exhaust fumes, mist, vapors and gases generated at a
workstation or other local environment. An exhausted enclosure does not include a room
provided with general ventilation
Gas Room ✔Correct Answer-A separately ventilated, fully enclosed room in which only
compressed gases and associated equipment and supplies are stored or used.
Manifold ✔Correct Answer-Multiple tanks that are connected together to operate as one
system
Nesting ✔Correct Answer-A method of securing flat-bottomed compressed gas containers
upright in a tight mass using a contiguous three-point contact system whereby all containers
within a group have a minimum of three points of contact with other containers, walls or
bracing.
Oxidizing Gas ✔Correct Answer-A gas that car support and accelerate combustion of other
materials.
What is compressed flammable gas? ✔Correct Answer-It is any gas that is ignitable in a
mixture of 13% or less (by volume) with air, or the flammable range with air is at least 12%,
regardless of the lower limit, at atmospheric temperature and pressure.
Examples of FLAMMABLE GASES include: ✔Correct Answer-Acetylene
Hydrogen
Methane
Methylamine
Carbon Monoxide
Hydrogen-Sulfide
Vinyl chloride
In the NFPA diamond-shaped sign rating system, the left-most quadrant is colored blue and
represents the ✔Correct Answer-Health hazard
Regulators are designed to control ✔Correct Answer-Pressure
The gas container valve must be opened by ✔Correct Answer-Hand
Before the gas containers can be used, a regulator must be attached to each of the ✔Correct
Answer-Control Valves
Compressed Gases Exam with all Correct & 100% Verified
Answers |Already Graded A+
Combustible Waste ✔Correct Answer-Any substance, item or other organic or inorganic
matter that presents a fire hazard and is a byproduct or residue of the construction, use or
occupancy of any premises, or any activity conducted thereon, that has no economic value in
connection with such use or occupancy.
Compressed Gas ✔Correct Answer-A material, or mixture of materials that is a gas at 68F or
less at 14.7 psia of pressure; and has a boiling point of 68F or less at 14.7 psia that is either
liquefied, non-liquefied or in solution at that temperature and pressure, except gases which
have no other health-or physical-hazard properties that are not considered to be compressed
until the pressure in the packaging exceeds 41 psia at 68F
Compressed Gas Container ✔Correct Answer-A pressure container designed to hold
compressed gases at pressures greater than 1 atmosphere at 68F. A compressed gas container is
a container that stores highly pressurized gas.
Compressed Gas System ✔Correct Answer-An assembly of components, such as containers,
reactors, pumps, compressors and connecting piping and tubing, designed to contain, distribute
or transport compressed gases.
Containment system ✔Correct Answer-A gas-tight recovery system comprised of devices or
equipment which, when placed over or around the portion of the compressed gas container
that is leaking, stops or controls the escape of gas from the container
Containment vessel ✔Correct Answer-A gas-tight vessel which, when installed or placed over
or around a leaking compressed gas container, confines the container and the gas leaking there
from.
DOTn ✔Correct Answer-United States Department of Transportation, n=US regulations, not
Canadian
Explosion ✔Correct Answer-An effect produced by the sudden violent expansion of gases,
whether or not accompanied by a shock wave or disruption, of enclosing materials
Excess Flow Valve ✔Correct Answer-A valve inserted into a compressed gas container that is
designed to shut off the flow of gas in the event that its predetermined flow is exceeded
, Excess Flow Control ✔Correct Answer-A fail-safe system or other approved device, equipment
or system designed to shut off flow caused by a rupture in a pressurized piping system.
Exhausted Enclosure ✔Correct Answer-A device, typically consisting of a hood equipped with
a fan that serves to capture and exhaust fumes, mist, vapors and gases generated at a
workstation or other local environment. An exhausted enclosure does not include a room
provided with general ventilation
Gas Room ✔Correct Answer-A separately ventilated, fully enclosed room in which only
compressed gases and associated equipment and supplies are stored or used.
Manifold ✔Correct Answer-Multiple tanks that are connected together to operate as one
system
Nesting ✔Correct Answer-A method of securing flat-bottomed compressed gas containers
upright in a tight mass using a contiguous three-point contact system whereby all containers
within a group have a minimum of three points of contact with other containers, walls or
bracing.
Oxidizing Gas ✔Correct Answer-A gas that car support and accelerate combustion of other
materials.
What is compressed flammable gas? ✔Correct Answer-It is any gas that is ignitable in a
mixture of 13% or less (by volume) with air, or the flammable range with air is at least 12%,
regardless of the lower limit, at atmospheric temperature and pressure.
Examples of FLAMMABLE GASES include: ✔Correct Answer-Acetylene
Hydrogen
Methane
Methylamine
Carbon Monoxide
Hydrogen-Sulfide
Vinyl chloride
In the NFPA diamond-shaped sign rating system, the left-most quadrant is colored blue and
represents the ✔Correct Answer-Health hazard
Regulators are designed to control ✔Correct Answer-Pressure
The gas container valve must be opened by ✔Correct Answer-Hand
Before the gas containers can be used, a regulator must be attached to each of the ✔Correct
Answer-Control Valves
