Ch. 19. Operating Aerial Apparatus

Question 1

Ch. 19 pg. 682
Raising the telescoping aerial device means elevating the entire assembly from its stored position to a desired angle and useful position. Raising the aerial device consists of a series of motions that includes, elevating, rotating, extending, and lowering the device to its objective. Some new apparatus are equipped with _________ type controls that are well suited for more than one motion at a time movements.

Answer 1

joystick.

Question 2

Ch. 19 pg. 682
The load chart criteria should be so familiar to the primary operator that he or she can instantly recognize when the operation is nearing a critical condition. What other systems may an apparatus have to determine safe operating practices. (3) load charts and 2 more

Answer 2

electronic load monitoring

envelope control systems.

Question 3

Ch. 19 pg. 686
When operating the elevated water delivery system, all valves and nozzles must be opened and closed in a slow and controlled manner to minimize: 
A. Over pressurizing 
B. shock loading 
C. water hammer. 
D. torsional stress

Answer 3

B. shock loading.

Question 4

Ch. 19 pg. 691
Protective water curtains are not designed to enable operations in situations where personnel are equipment may be exposed to radiant heat. They are intended to be used in ____________

Answer 4

emergency situations.

where personnel and equipment are endangered by radiant heat or flames.

Question 5

Ch. 19 pg. 691
The D/O needs to be able to determine safe conditions for aerial deployment. The safest conditions to operate an aerial device are:
A. Moderate temperature, light wind, level surface
B. hard, level surface, light wind, above freezing temperatures.
C. Hard, level surface, moderate wind, above freezing temperatures,
D hard, level surface, light wind, moderate temperature.

Answer 5

C. Hard level surface, moderate wind, above freezing temperatures.

Question 6

ch. 19 pg. 693

The limit of ice build up allowed by NFPA 1901 is ___________ on all surfaces.

Answer 6

1/4 inch

Grease applied to exposed sliding surface, such as slip tubes, is effective in preventing immediate adhesion to the aerial device, and facilitates “shrugging off ice when extending and retracting the device.

Question 7

Ch. 19 pg. 699

When stabilizing an aerial apparatus what 3 things can be used to keep the apparatus from moving during operations.

Answer 7

parking brake
auxiliary front wheel lock
wheel chocks.

Question 8

p.676 Fall Protection
+Aerial ladder includes__ and on a platform includes__ and__.
+Each operator on the device should be equipped with a fall restraint__belt and___.
*The FD SAFETY OFFICER selects the __ of the tether which must be consistent with the operations.

Answer 8

Handrails
Railings and gates
Ladder
Tether
Length

Question 9

p.678
Wire rope(cable), through use, will develop\_\_which can slice skin.

Answer 9

Barbs

Question 10

p.679 Operating Aerial Controls
+A D/O is fundamentally a”__” who must be well trained in the location of each control, its function, how it operates, when it should be used, and the appropriate safety precautions.
+Other members may need to communicate movement instructions to the aerial operator, these must be clear and consistent and can be combination of standard of __ and__ signals.

Answer 10

Technician

Verbal and hand

Question 11

p.679 Operating Aerial Controls
+Rotate left and right may be misinterpreted if the point of view is different, always use counterclockwise and clockwise.
+The D/O must have skills to solve__problems at the incident and operate all controls while maintaining visual contact with the aerial device and the space within which it is moved. If visual contact cannot be maintained then operator must rely on___.

Answer 11

Tactical

Spotter

Question 12

p.680 Primary and Secondary Control Positions
Primary control position for the aerial operator is at the lower controls usually located at the turntable. When working from the primary control position, the operator must practice the following: (4)

Answer 12

• be aware of the number, weight, and position of the personnel and equipment on the device.
• monitor the wind, ice and water flow, ensuring not to exceed the load chart limitations,
• maintain two-way communication with personnel at the tip or in the platform basket
• observe personnel on the turntable who are helping observe the situation or are waiting to ascend.

*Never place personnel at tip or platform if operation can be accomplished without them being there.

Question 13

p.682 Operating Telescoping Aerial

+Movements that are slow,smooth and controlled are called__. Full speed operations create__ stress on the aerial device when the motion is halted.

Answer 13

+Feathering

Dynamic

Question 14

p.684-685 Operating Articulating Aerial Equipment
There are two types of articulating aerial apparatus: (2)

The sections of an articulating apparatus are called?

Answer 14

Water Tower and Aerial Platform

Booms

Question 15

p.685 Operating Articulating Aerial
+The operational speed of the aerial device is directly proportional to the amount the control lever is__ or__.
+Regardless of skill level,__ speed operations should be minimized due to dynamic stress when halting especially when device is fully extended.
+Drivers must also be concerned about the__joint between the 2 boom sections as well as the working end. The __ is of particular concern when operating at lower elevations.

Answer 15

Pushed or pulled
Full
Elbow
Knuckle(elbow joint)

Question 16

p.686 Aerial ladders and piped waterways and water towers

+All valves and nozzles must be opened in a slow and controlled manner to minimize_______ the aerial device.
+Always most desirable to operate the nozzle with___ ___ if available. This eliminates the need to place a FF in a hazardous position and may free a FF for more effective use elsewhere.

Answer 16

Shock loading

Remote Controls

Question 17

p.688 Aerial ladders W/ detachable waterways

+Should be operated from the turntable or ground level using __ that are attached to the nozzle.

+Best choice for changing the stream at the nozzle on a detachable waterway is to __ __ the water flow before the FF ascends the ladder.

Answer 17

Ropes

Shut down

Question 18

p.692 Operating on Grade

+Aerial devices are not designed to routinely handle this type of force?

Answer 18

Twisting force:
- caused by the floor of the platform and/or the knuckles between the boom are not parallel to the ground
+Keys to operating on a grade:
-Optimum Positioning
-Proper stabilization of the apparatus to counter increased risk
-Load restrictions for the given grade

Question 19

p.692 High Wind Conditions
+Sustained winds of sufficient force can cause ___ or twisting of the aerial device.
+Most reliable method for obtaining wind speed?

Answer 19

+Deformation

+Calibrated wind measuring equipment
-Can either be mounted on apparatus or info relayed from dispatch

Question 20

p.693 Cold Weather

+Less obvious effects of cold weather:
-__ changes in the properties of the metal structural members.
+ In Extreme cold(sub zero temps) the device should be operated in a manner that will minimize/eliminate “__ __” to its structural members.
+Due to its __ ice adversely affects stability.

Answer 20

Physical

Shock Loading

Weight

Question 21

+ICE (Minimum of 1/4 in buildup allowed by NFPA)

• Lessens working load capacity
• Significantly reduces RESCUE capability

+__ applied to exposed sliding surfaces,slip tubes, is effective in preventing immediate adhesion to the aerial device. This facilitates “shrugging off” when extending and retracting.

+Keep drain valves __ in freezing weather.

Answer 21

Grease

Open

-If ice too thick to be shrugged off, another method of deicing must be used such as, high pressure steam, liquid thawing agent(similar to used on aircraft) or special thawing apparatus.

Question 22

p.695 Icing Conditions
+Amount of weight added to the aerial device by FF and equipment must be__ when icing conditions are present.
+In icy conditions, operator should consider keeping the aerial _ __ with the apparatus chassis as this is the strongest position to operate ANY aerial device.
+Avoid parking where the raised aerial device will be subject to accidental contact with __ or overspray.

Answer 22

Decreased

In line

Fire streams

Question 23

p.695-696 Exposure to Fire Effects

+When heat damage noted/suspected:
-Remove from service___.

Answer 23

Immediately

+Obvious signs of heat damage

• Discoloration
• Disfiguration
• Deformed Welds
• Improper operation of the aerial device

Question 24

p.696 Aerial device Mechanical or Power Failure
+High Hydraulic oil temps can lead to __ equipment failure.

+If high temps encountered and emergency conditions allow, consider shutting the __ off for a period of time to give the oil a chance to cool.

Answer 24

Premature

PTO

+High oil temps may be caused by:

• Adverse environmental conditions
• High ambient conditions
• Lengthy operations

Question 25

p. 697 Failure of main hydraulic pump
+Failure of the main hydraulic pump will typically require the __ hydraulic pump to be used.
+Only operate __ hydraulic pump in intervals as recommended by manufacturers.

Answer 25

Auxiliary

Auxiliary

Question 26

p.697 Incident where damage/failure of the aerial device
+The__may be called upon to provide info on the operating conditions, weather, load and emergency factors should be noted.

Answer 26

D/O

Question 27

p.697 Below Grade Operations
+DO NOT deploy an aerial device below grade unless the __ has approved the apparatus for the operation.
+While most manufacturers do not recommend using the aerial device to __ lift a load, they may be used to create a high point __ for a rope rescue system that moves a load. AERIAL PLATFORMS are more suited for this function and some may be equipped with __ on the platform that allow safe lifting operations as long as weight restrictions are not exceeded.

Answer 27

Manufacturer

Physically
Anchor
Winches

Question 28

p.698 Below Grade Operations
+ 3 boom, articulating aerial platform is particularly suited for __ __ rescue operations.
-Can reach down, out and under the surface in which the apparatus is parked.(victim underneath bridge)
+Follow range of motion restrictions imposed by the __ when used to deploy master streams to __ grade locations.

Answer 28

Below Grade

Manufacturer
Below

Question 29

ch 19 pg. 681
Ladder are often rated at higher tip capacities as elevation angle increase or when the ladder is not fully extended. The information is communicated via the:

Answer 29

Load chart.