Chapter 19

Question 1

What is the NFPA standard for ladder belts and tether?

Answer 1

NFPA1983

Question 2

Personnel must be safely anchored to a structural feature of the ladder or platform when?

Answer 2

Any time they are not actively climbing or descending the ladder, any time they are not entering or exiting the platform, and any time the device is in motion

Question 3

The primary control position for the aerial operator is?

Answer 3

At the lower controls usually located at the turntable

Question 4

Where is the secondary control position located?

Answer 4

Either at the upper tip controls or controls in the platform basket

Question 5

What is the job of the primary control operator?

Answer 5

Observe the aerial operation and prepare to override the secondary control operator if unsafe conditions are encountered

Question 6

The load chart is?

Answer 6

Graphical or tabular description of the load that can be distributed on an aerial device based on factors such as extension, elevation, stabilizer set-up, wind, water flow, and ice load

Question 7

Why should electrical load monitoring or envelope control system not be relied upon as the only means to determine safe operating practices?

Answer 7

These systems can fail or provide inacurrate information

Question 8

The driver/operator should only do one motion at a time as recommended unless?

Answer 8

The situation is critical and the operator is qualified to operate the apparatus in that manner, or the apparatus is equipped with a system that is designed for multi-use operations

Question 9

On some apparatus, simultaneous motion when one function is suddenly released while another is still in use can cause?

Answer 9

A hydraulic pressure spike that may cause erractic behavior of the aerial device. To avoid this problem, use single motion steps or slowly release the second function

Question 10

What is feathering?

Answer 10

Slow and controlled movements, because of the forces being generated,especially as length increases all movements must be slow

Question 11

Regardless of the skill of the operator, full-speed operations should minimized due to?

Answer 11

The large amount of dynamic stress placed upon the aerial device when the motion is halted

Question 12

What are the two types of articulating aerial devices?

Answer 12

Water towers and aerial platforms

Question 13

What are the sections on an articulating aerial device called?

Answer 13

Booms, these devices have two or more sections

Question 14

Drivers of articulating aerial devices must also be concerned about what when moving the aerial?

Answer 14

The elbow joint between the two boom sections(knuckle) as well as the working end of the device

Question 15

Firefighting mode is where the master stream is?rescue mode is?

Answer 15

At the tip of the aerial, rescue is one aerial section lower

Question 16

As new apparatus are being designed what is being used less frequently?

Answer 16

Detachable ladder pipes, and appliances

Question 17

The 75-80-80 guideline refers to?

Answer 17

75 degree elevation, 80 percent extended length, and 80 psi

Question 18

Operators should do what on windy days to take advantage of it?

Answer 18

Train and learn the reach of the fire streams vs wind

Question 19

Cold weather causes what in hydraulic fluid?

Answer 19

Causes an increased viscosity of the hydraulic oil, slowing overall machine operation

Question 20

What is the limit of ice build-up allowed by nfpa 1901?

Answer 20

1/4 inch on all surfaces

Question 21

What is effective in preventing immediate adhesion to the aerial device when ice formation begins?

Answer 21

Grease applied to exposed sliding surfaces such as slip tubes

Question 22

What is “shrugging off” ice?

Answer 22

Extending and retracting the aerial device. If ice becomes so thick it cannot be shrugged off another method of driving will have to be used

Question 23

What are common methods of removing ice?

Answer 23

High pressure steam, or a liquid thawing agent similar to the type used on aircraft

Question 24

If the aerial device is going to be used for elevated master stream operations avoid parking it where?

Answer 24

Avoid parking it where the stream will be operated against the wind

Question 25

Ice shrugging involves?

Answer 25

Slowly extending and retracting the aerial device to remove accumulated ice

Question 26

Aluminum aerial devices are equipped with what to help show heat damage?

Answer 26

Heat sensors that change color when overheated.

Question 27

What must be done when heat damage is noted, or even suspected on the aerial?

Answer 27

The aerial device must be removed from service immediately

Question 28

High oil temperatures can lead to?

Answer 28

Premature equipment failure

Question 29

If high oil temperatures are encountered what should be done if emergency conditions allow?

Answer 29

Consider shutting the PTO off for a period of time to give the oil a chance to cool

Question 30

What should be done before activating the auxiliary pump?

Answer 30

Ensure the aerial control lever is positioned to allow for the hydraulic pressure to flow

Question 31

What type of aerial device is particularly well suited for below grade rescue operations?

Answer 31

The three boom, articulating aerial platform