Fire Apparatus Driver/Operator Chapter 16 + 17 + 18

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What does one sound of the buzzer system in older apparatus indicate?

Go

Stop (correct)

Acknowledge signal

Reverse

What is the maximum weight limit for a tiller?

80,000 lbs (correct)

60,000 lbs

120,000 lbs

100,000 lbs

How many braking axles do tillers have?

3 (correct)

6

5

4

When positioning an apparatus near a building with overhead wires, what is the ideal distance to position it away from the building?

25 to 30 ft Signup and view all the answers

What is one of the most difficult maneuvers in a tiller?

Right hand turns from a dedicated right hand turn lane with a vehicle on the left Signup and view all the answers

What must be applied on tillers before operating the aerial?

Parking brake and trailer brake Signup and view all the answers

Where should the driver position the dual axles when operating the aerial ladder?

On the spot from which they view the ladder extending Signup and view all the answers

What is recommended when using chocks for tillers?

Place chocks both ahead of and behind the front steering axles Signup and view all the answers

When extending the aerial over a roof, how far should the bottom of the ladder be above the roof edge?

3 to 6 inches Signup and view all the answers

What is the recommended extension of the aerial above the edge of the roof?

3 to 6 rungs Signup and view all the answers

What should personnel do if the aerial comes in contact with powerlines?

Remain off the apparatus until power is shut off or aerial is freed from contact Signup and view all the answers

What is the typical balcony rail height?

4 ft Signup and view all the answers

How far should the aerial be extended past the base section's sixth rung to keep the tip of the fly section clear?

55 ft Signup and view all the answers

What length of roof ladder can help victims make the transition onto the aerial?

14 ft Signup and view all the answers

How often should hydraulic reservoirs be checked?

At least weekly Signup and view all the answers

What size of particles can the integral filter in the hydraulic reservoir clean the oil of?

10 microns Signup and view all the answers

What is the advantage of double-acting cylinders in hydraulic systems?

Allows the unit to fly below the 0-degree grade and still have enough power to lift the aerial back up Signup and view all the answers

What is the bottom section of the ladder called?

Base section Signup and view all the answers

What is most often responsible for damaging jack plates?

Road potholes and railroad crossings Signup and view all the answers

Which hydraulic system is the largest and most powerful on the aerial apparatus?

Lift cylinders Signup and view all the answers

What is the minimum flow on an aerial device, per NFPA standards?

1,000 gpm Signup and view all the answers

How many cavities does a hydroelectric swivel have?

3 cavities Signup and view all the answers

What is the minimum outer diameter recommended for rungs on the ladder?

1.25" Signup and view all the answers

How much weight should each rung of the ladder be capable of supporting at the center?

250 lbs Signup and view all the answers

What is the minimum required width between handrails at the top of the ladder?

18 inches Signup and view all the answers

How much flow can the water curtain underneath the platform handle in case of impinging fire?

75 gpm Signup and view all the answers

What is the maximum angle newer aerials are capable of operating at?

-10 to +75 degrees Signup and view all the answers

How is the working height of the unit measured?

From the ground to the highest ladder rung at full elevation Signup and view all the answers

What does the red zone on level indicators signify?

Exceeding safe limits, operations should not continue Signup and view all the answers

What does the green zone on level indicators signify?

between 0 and 3.5 degrees, operates at 100% capacity Signup and view all the answers

What does the yellow zone indicate?

between 3.5 and 6 degrees, operates at 50% capacity Signup and view all the answers

In what order should new drivers operate the ladder?

Raise, rotate, extend Signup and view all the answers

What happens if a driver over pumps the aerial?

Excess water is vented to the ground Signup and view all the answers

When does NDT testing need to be done?

Every 5 years Signup and view all the answers

When does a time trial with the ladder start and end?

Starts when the ladder is lifted from the cradle, ends after all three functions are completed Signup and view all the answers

Where is it recommended to rotate during the rotation phase?

To the side of the control pedestal Signup and view all the answers