Ch. 17 Positioning Aerial Apparatus

Question 1

Ch. 17. pg. 612
For any given situation, the proper distance between the objective and the aerial apparatus is the distance that affords the: (3)

Answer 1

• Maximum stability,
• best climbing angle
• adequate extension.

Question 2

Ch.17 pg. 622
If the truck only has two jacks then the direction in which it can be stabilized on the grade is fairly limited. It needs to be facing ______

Answer 2

uphill.

Question 3

Ch. 17 pg. 620
When positioning an aerial apparatus and the D/O has the entire parking lot to use he/she should ___________ the aerial apparatus into position.

Answer 3

Nose or back

Note: backing the apparatus in with a rear mounted aerial device it maximizes the reach of the aerial device and allows for a quick exit.

Question 4

Ch. 17 pg. 631
To identify signs of structural collapse, an aerial device is a useful tool to obtain an overhead look at the condition of the building. There are many indicators that a building may become unstable including: (5)

Answer 4

• bulging walls
• sagging roofs
• large cracks in the exterior
• falling bricks, blocks, or mortar
• interior collapse

Question 5

p.617 Overhead Obstructions
*Fire Service Standard
+High Voltage line clearance(600 to 50,000 volts):
+High Voltage Transmission line clearance(50,000 or more volts):

*OSHA Construction Industry standard
+Overhead electric lines (less than 350kilovolts):
+HIgh Tensions Lines(over 350 kilvolts):

Answer 5

Fire Service
10 feet
50 feet

OSHA
20 feet
50 feet

Question 6

p.627 Railroads
+Most railroad companies advise that vehicles be kept at least __ feet from the tracks when possible.
+When aerial device is needed across a railroad track, keep aerial device at least __ feet above the level of the rails as an added safety precaution.

Answer 6

25ft

25ft

Question 7

Ch. 17 pg. 616
Wind can affect the stability of an arial apparatus. When it is necessary to operate during high wind conditions the D/O should spot the apparatus so that:
A. the arial device is positioned over the front or rear of the aparatus and parallel with the wind direction.
B. the arial device is positioned over the front of the aparatus and perpendicular to the apparatus.
C. the arial device is positioned off the rear of the apparatus and against the wind direction.
D. the arial device is positioned over the front or rear of the apparatus and against the wind direction.

Answer 7

A. over front or Rear and parallel with the wind direction.

Note: D/O and company officers should also be aware of weather phenomena caused by buildings such as wind tunnels, and avoid them when possible.

Question 8

Ch. 17 pg. 623-624
While considering safetly a D/O must quickly process a great deal of innformation. Which of the following statements is incorrect:
A. Be aware of narrow adn one way streets and alleys.
B. Place the apparatus in a position that maximizes the angle and extension to which the aerial device will be raised.
C. Avoid spotting the apparatus in a location that will require the apparatus to be stabilized on top of debris.
D. Traffic cones should be placed to direct traffic away from the apparatus and or the incident.

Answer 8

B. is incorrect.

Place the apparatus in a position that minimizes the angle and extension to which the aerial device will be raised.

Question 9

Ch. 17 pg. 626
There are numerous challenges relative to apparatus placement and responder safety when dealing with incidents on busy roadways. Additional apparatus should be placed how far behind the shielding apparatus?

Answer 9

150-200 feet.

Question 10

Ch. 17 pg. 613 
Apparatus should not be used at low elevations and long extensions.   Strict attention to the load chart must be maintained.    Apparatus with these restrictions were typically built before when: 
A. 2000 
B. 2007 
C. 1997 
D. 1991

Answer 10

D. 1991.

Question 11

Ch. 17 pg. 622

The maximum loading for any unsupported aerial device occures whe noperated at angles between ________ from horizontal.

Answer 11

70-80 degrees