(1) Bk 77 - MTA CNG Manual Flashcards
MTA CNG bus:
How much should you turn the Manual Fuel Shut-Off Valve in order to cut off fuel to the engine?
1/4”
MTA CNG bus:
What does the Manual Fire Suppression Actuator Valve do? How is it labeled?
It Extinguishes Fire in Engine Compartment
Button is red and labeled “FIRE”
What are the 4 emergency procedures that should be done for a MTA CNG bus with a gas leak?
- Shut off engine at the Engine Compartment Switch Box
- Shut off fuel at the Manual Fuel Shut-Off Valve (exterior of bus)
- Engage Battery Disconnect switch (exterior of bus)
- If a fire activate the Manual Fire Suppression Actuator Valve (inside bus, drivers area)
MTA CNG Buses:
Establish a safe zone at ____ feet minimum
50
Unschedule Release of Gas (Gas Leak):
Determine if gas leak is present by:
-Odor detection
-Sharp hissing sound
-icing on fuel components
-use a hand-held gas detection device.
If a leak is present:
-Identify type of CNG bus involved
-Follow Emergency Operating Procedures within Guide for Bus Specific type (indexed by series number)
-Protect against body or eye injury due to release of gas under high pressure;
Gas Leak With Fire or Explosion:
-Lead fire agency to activate Incident Command Structure
-Rescue and Mass Casualty Incident protocols as needed
-Utilize MTA field supervisor/On-scene coordinator as a resource/liaison.
What are the 5 areas of the CNG BUS that are addressed in each Emergency Operating Guide?
- Engine Compartment Switch Box
(Stops Engine) - Manual Fuel Shut-Off Valve
(Stops fuel flow to engine) - Battery Disconnect Switch
(Disables main electrical power and shuts off all fuel solenoid valves) - Manual Fire Suppression Actuator Valve
(Extinguishes Fire in Engine Compartment) - Roof Vent Outlets
(Depletes Gas from Fuel System. DO NOT ATTEMPT TO STOP GAS FROM VENTING)
The different Emergency Operating Procedures within The CNG Guide are indexed by ________for Bus Specific types.
series number
