17. Positioning aerial apparatus

Question 1

If the building is greater than five stories

Answer 1

The engine takes the outside position and Ariel parks next to the building

Question 2

Places the maximum amount of stress on an aerial device and in some cases reduce its load carrying capacity

Answer 2

Long extensions in low angles

Question 3

Electricity will Arc cross a gap as large as __ft

Answer 3

10 ft

Question 4

$$$

The long-standing fire service standard has been to provide __ feet of clearance between the aerial device and overhead high-voltage lines energized from 600 to 50,000 V and __ feet of clearance for a high voltage transmission lines over 50,000 V

Answer 4

10 ft

50 ft

Question 5

The apparatus is most stable when the aerial device is operated directly over the

Answer 5

Front of rear

Question 6

Jackknifing

Greatest ability occurs when this angle is approximately __° from in line and the aerial device is extended away from this angle.

Answer 6

60°

Good stability occurs at angles up to 90°

Question 7

Ideally, the truck should be operated in the ___ position with the aerial device directly in line to reduce stress

Answer 7

Uphill

Question 8

The maximum loading for any unsupported aerial device occurs when operated at angles between ___ from horizontal

Answer 8

70° and 80°

Question 9

$$$

Most railroad companies advise that vehicles be kept at least __ feet from the tracks when possible.

Answer 9

25 ft

Keep the aerial device at least 25 feet above the level of the rails