AO's Test T.B. Flashcards
What is the discharge time of a 20 pound dry chemical extinguisher?
10 seconds
A high voltage sign stands for a minimum of how many volts?
750 volts
What is a discharge time of the 20 pound CO2 extinguisher?
60 seconds
What is the NFPA standard for ICS?
1561
What is the minimum safe work area for vehicle extrication?
30’
How many volts Can high-voltage conductors carry?
Up to 34,505
How many volts do low-voltage conductors carry?
240-480 volts.
Dry chem extinguishers have an effective range of how many feet?
15-20’
The portable acetylene cutting torch will operate for how many minutes and cut metal how thick?
15minutes, 2”
What is the rating for Seagrave aerial ladder pipes GPM and PSI?
800 GPM at 80 PSI.
What should the angle be of a ladder pipe operation for the arial ladder?
75-80 degrees
What is the range in miles and watts of power a LAFD portable radio transmits?
2-3 miles, 2 or 4 watts
What is the color of a natural gas pipe? What is the burst strength required for this pipe?
Salmon-beige, 800 psi
When do you replace a chain on the chainsaw?
When there are three or more missing cutters in a row, when you are missing or have six damaged tips at random or there’s any cracked or broken tie straps.
How many minutes can you get of continuous operation using a 30 minute bottle and a 60 minute bottle for the pneumatic power chisel?
2,4