Truck and Driving. All Revision Questions and Correct Answers (Already Graded A+)
(2024 Update) 100% Guaranteed
What percentage of lateral grade should all aerial apparatus be able to correct w/o losing ladder
capacity? - ANSWER- 0-5%
6-14% reduces ladder capacity by _______% - ANSWER- 50%
when deploying an aerial on a lateral slope, lower the high side outrigger first (T/F) - ANSWER-
True
500psi for Caltrans asphalt rating (T/F) - ANSWER- True
Most trucks, the load is transferred down the ladder to the ____ BOX - ANSWER- Torque box.
Ladder to torque box to outriggers to ground.
max stabilizer PSI on ground pad is ____ - ANSWER- 75PSI
When deploying aerial on a shortjack, we can swing the aerial to the short jacked side (T/F) -
ANSWER- False
Side to side grades can be corrected up to _____ percent per NFPA - ANSWER- 6%
Per NFPA 1911, what is the standard weight of a FF - ANSWER- 250lbs
why is it dangerous to rest the aerial on a window/ledge - ANSWER- top rail needs to be in
tension, resting swaps the type of load on the ladder which can lead to failure (tops under tension,
bottoms under compression)
, after a series of failures, the NTSB found 3 categories that aerial ladder accidents fell into -
ANSWER- overloading, worn out materials, misuse/abuse (poor design is not an answer)
doubling the extension of an aerial decreases the resistance to buckling to ____ of its orginal
strength. Conversely, retracting it _______ the strength. (Millers principle?) - ANSWER- 1/4th,
4x.
For aerial considerations, setback is defined as - ANSWER- distance between objective and
apparatus
100' aerial ladder can reach 6-8 stories (T/F) - ANSWER- True
Deploying an aerial over the front or rear is considered the most stable although they are capable
of full strength over the side (T/F) - ANSWER- True
When lowering the outriggers on a side to side grade, lower the ________ first - ANSWER-
high side
on a mid-mount, you get the most reach when deploying over the ______ - ANSWER- side
Aerial ladders are designed to hold their max load at what degree - ANSWER- 70-80
aerial deployed at ______ angles and ______ extension cause the most stress - ANSWER- low
and full
max wind speed IFSTA states to not operate aerial at is _______Mph - ANSWER- 40
minimum power line distance from ladder is - ANSWER- 10'
(2024 Update) 100% Guaranteed
What percentage of lateral grade should all aerial apparatus be able to correct w/o losing ladder
capacity? - ANSWER- 0-5%
6-14% reduces ladder capacity by _______% - ANSWER- 50%
when deploying an aerial on a lateral slope, lower the high side outrigger first (T/F) - ANSWER-
True
500psi for Caltrans asphalt rating (T/F) - ANSWER- True
Most trucks, the load is transferred down the ladder to the ____ BOX - ANSWER- Torque box.
Ladder to torque box to outriggers to ground.
max stabilizer PSI on ground pad is ____ - ANSWER- 75PSI
When deploying aerial on a shortjack, we can swing the aerial to the short jacked side (T/F) -
ANSWER- False
Side to side grades can be corrected up to _____ percent per NFPA - ANSWER- 6%
Per NFPA 1911, what is the standard weight of a FF - ANSWER- 250lbs
why is it dangerous to rest the aerial on a window/ledge - ANSWER- top rail needs to be in
tension, resting swaps the type of load on the ladder which can lead to failure (tops under tension,
bottoms under compression)
, after a series of failures, the NTSB found 3 categories that aerial ladder accidents fell into -
ANSWER- overloading, worn out materials, misuse/abuse (poor design is not an answer)
doubling the extension of an aerial decreases the resistance to buckling to ____ of its orginal
strength. Conversely, retracting it _______ the strength. (Millers principle?) - ANSWER- 1/4th,
4x.
For aerial considerations, setback is defined as - ANSWER- distance between objective and
apparatus
100' aerial ladder can reach 6-8 stories (T/F) - ANSWER- True
Deploying an aerial over the front or rear is considered the most stable although they are capable
of full strength over the side (T/F) - ANSWER- True
When lowering the outriggers on a side to side grade, lower the ________ first - ANSWER-
high side
on a mid-mount, you get the most reach when deploying over the ______ - ANSWER- side
Aerial ladders are designed to hold their max load at what degree - ANSWER- 70-80
aerial deployed at ______ angles and ______ extension cause the most stress - ANSWER- low
and full
max wind speed IFSTA states to not operate aerial at is _______Mph - ANSWER- 40
minimum power line distance from ladder is - ANSWER- 10'
