Haz Control Flashcards
Who shall conduct an inspection of the lockout/tagout procedure?
An authorized employee
who is not involved in the procedure
possibly risk management
Procedure for shift or personnel changes
On coming personnel exchange with outgoing/tags
Retesting to ensure deenergized
Discuss status
Natural gas is not toxic or poisonous. Tests have shown that persons breathing concentrations of _____% natural gas med with air have no ill effects.
25%
However asphyxiation can occur because of lack of oxygen in an enclosed space.
Locks and tags are found where?
ISO bag
Rescue 8
Hazmat 5
Installation of gas mains, services and related facilities must conform to _____?
DOT
What are the limitations to the tagout system?
Tags are warning devices and do not provide physical restraint
Tags may provide a false sense of security.
Tags may become detatched.
The lockout/tagout program is evaluated_____
annually.
Natural gas pressure used by the appliances in your home is called?
utilization pressure
Natural gas is only about ____% as heavy as air.
65%
What gas valves should you not operate?
gas valves in the street.
If it is absolutely necessary to extinguish the gas flame before the gas flow can be shut off use_____
Dry chemical at the base of the flame.
The limits of flammability for natural gas are ____% to _____% gas in air mixture.
5 to 15%
The ignition point of natural gas is _____F
1100 to 1200 degrees
The odorant that is added to natural gas is noticeable when there is less than ___%
1%
The OKC Safety Officer will have the overall responsibility of the program to ensure that
Employees receive training
Program is evaluated annually
Lock out/ Tag out equipment is used
Procedures are followed
Lockout/tagout devices must meet the following requirements:
SWISD
substantial
wording
Identifiable
Standardized
Durable
In case of a plug in power source the tag will be placed where?
on the plug
What 2 things will be on a lockout tag?
who applied it
and
Warn against the hazards if it is charged
Low voltage installations are considered to be _______
Below 600 volts
The IC must provide employees with the necessary protective material and hardware to perform lockout/tagout. This may include?
Locks
Tags
Chains
wedges
key blocks
adapter pins
The lockout/tagout standard requires that OKC FD establish an energy control program that includes what 3 things?
Documented energy control procedures
Employee training
Periodic inspections
What is the preferred method of energy isolation?
Lockout
If an energy isolating device is not capable of being locked out, then _______
a tagout and secondary measure shall be used.
FF on standby
Remove a circuit
Block a switch
Remove a fuse
Open extra disconnecting device
During training the lockout/tagout device must be removed by______
the authorized employee who applied it.
Tagout devices must be attached with nylon cable ties that are
Non-reusable,
self locking
non-releasable
with a minimum unlocking strength of no less than ___pds
50 pds
What is the last step in the lockout/tagout procedure?
Verify the Isolation of the equipment by operating the push button
Who’s responsibility is it to reenergized equipment that has been locked out?
the occupant or business owner
ONG encourages cities to adopt one of the model codes. In area’s not covered by a city code ___ should be followed.
BOCA
Leakage surveys are conducted _____ at public, private and vocational schools. ONG also utilizes Bar hole surveys where possible.
annually
How many regulators are ahead of the meter in a intermediate or high pressure distribution system?
2 regulators ahead of the meter
The most common method of distributing gas is through a ____ line
Medium Pressure line
1-60 pds
Reduced to 5.3 ounces by a service regulator ahead of the meter.
One method of distributing gas to a city is through a pressure system, carrying approx. ____ ounces of pressure. In this instance gas goes directly through a meter at the house and is used by appliances.
5.3 ounces
Cut wires only to protect a life. Pull a meter only
as a last resort.
_____ and _____ are non conductive and may be used around energized facilities.
Dry Chemical
Carbon Diozide
The wires for the highest voltage in the range are generally mounted ___ft or more above the ground.
30 ft.
Pole mounted facilities generally have nominal voltages ranging from _____ to _____.
120v to 34,000 volts
