Chapter 8, Operating Telescoping Aerial Equipment

Question 1

What tasks should be completed before deploying the aerial device?

Answer 1

• place apparatus in proper position
• apply all parking brakes
• place transmission in proper gear, activate PTO
• fully deploy stabilizers
• switch selector valve from “stabilizer” to “aerial device” (so hydraulic power is provided for aerial operations)

Question 2

Why should “full-speed” operations for aerial device be minimized?

Answer 2

Because of large amount of dynamic stress placed on the aerial device when motion is halted.

Question 3

How far should the aerial device be positioned above the surface of the target?

Answer 3

4 to 6 inches (and allowed to settle onto the surface from the weight of the ff on the device).

Question 4

What NFPA standard established the minimum load requirements for aerial ladders?

Answer 4

NFPA 1901.

Question 5

What are the keys to operating an aerial apparatus on a grade?

Answer 5

• optimum positioning
• proper stabilization
• know load restrictions

Question 6

What is the max wind speed that an aerial device can be operated?

Answer 6

40 mph.

Question 7

What is Guy Rope?

Answer 7

A rope tied to the top rung of an aerial device in winds upward of 35 mph. Tension is applied in opposite direction that wind is blowing to relieve tension on device.

Question 8

At what height should the Guy rope be used?

Answer 8

Minimum height of 75 feet.

Question 9

How does low air temperature affect aerial device operations?

Answer 9

Low air temp (cold) increases viscosity of hydraulic oil, slowing overall operation of equipment.

Question 10

What are visible signs of heat damage to the aerial device?

Answer 10

• discoloration
• disfiguration
• deformed weld
• improper mechanical response