IFSTA Aerial Chapter 6 Positioning

Question 1

If a structure is less than 5 stories engine companies should park…

Answer 1

On the side of street closest to the building with aerials on the outside

Question 2

If a structure is more than 5 stories engine companies should park…

Answer 2

Engines take the outside position and the aerials park next to the building

Question 3

Three factors that describe proper distance between the objective and the aerial apparatus

Answer 3

The Distance that affords the maximum stability

The Best climbing angle

Adequate Extension

Question 4

Four Main Tactical uses for any aerial device

Answer 4

Rescue

Access to upper levels

Ventilation

Fire Suppression

Question 5

When using protective streams towards an aerial during victim rescue during heavy fire what must be considered when selecting streams

Answer 5

Solid and straight streams directed against aerials can place damaging load stresses,

preferred procedure is to use a wide angle fog to push heat or smoke away

Question 6

Where should the driver/operator position the aerial during flat roof ventilation

Answer 6

Unburned side of the structure as close as possible to the area being vented

Question 7

How far above roof level shall the aerial ladders be raised

Answer 7

6 feet above

Question 8

Placement of the tip of the aerial during a blitz attack

Answer 8

Prioritize giving the stream as much reach into the fire area as possible

Place nozzle in the lower portion of the window and direct stream upward

Question 9

What causes the aerial to “batter” the structure

Answer 9

Device being supported on the structure nozzle reaction and shutting down water streams can cause battering

Question 10

Best positioning techniques during high wind conditions

Answer 10

Minimal Extension/Elevation over the langotudinal Axis (Front to Back)

Question 11

In which operating area of the truck is the aerial most stable

Answer 11

Longitudinal axis

Operating over the front or the back of the truck

Question 12

What is the least stable angle for the aerial

Answer 12

perpendicular

Question 13

When Jacknifing a tiller truck how is greatest stability reached

Answer 13

Angled at 60 degrees with the aerial extended away from the angle.

Question 14

What occurs when aerial rungs are operated non parallel to the ground

Answer 14

Stress in aerial is increased

Question 15

What vehicle positioning increases stress on the aerial device

Answer 15

Apparatus parked on an incline and aerial working off the side of truck creates a torsion or twisting motion

Question 16

To reduce stress while operating on an incline how can the operator spot the aerial

Answer 16

Spot the turntable downhill from the point of operation

Question 17

Approaching from the Uphill side

Answer 17

Pull Apparatus past the building and operate the aerial device from the rear of the truck

Question 18

Approaching from the downhill side

Answer 18

Apparatus should be stopped short and aerial be operated over the front of the cab

Question 19

Maximum loading for an unsupported aerial occurs at what angles of elevation

Answer 19

between 70 and 80 from horizontal

Question 20

When are aerial ladders operating at their weakest positiong

Answer 20

Low angle of elevation over a long extension

Question 21

What is the most expensive exposure during a building fire

Answer 21

The Aerial Apparatus

Question 22

What shows reinforcement ties in an older building

Answer 22

Exterior ornamental stars, or large bolts and washers at various intervals outside of masonry

Question 23

During railroad operations how high shall the aerial be operated

Answer 23

atleast 25 feet above the level of the rails

Question 24

In Storage tank fires where should you not spot the aerial

Answer 24

Avoid positioning inside the dike UNLESS the roadway is built on top of the dike.