ch 11 test quiz Flashcards
What are the two main structural components that run the entire length of a ladder?
Beams
What is the very top of a ladder called?
Tip
What is the function of stops on an extension ladder?
Prevent overextension
Another term for a portable ladder is a __________ ladder.
ground
How often should periodic ladder service testing be performed?
annually
Portable ladders approved for fire service use can support up to:
750 lb (340 kg).
Where should the tip of a ladder be placed for rescue operations from a window?
Immediately below the windowsill
When a ladder is carried by one fire fighter, where is the top beam?
on the shoulder
Which ladder is carried with the tip forward?
roof
When standing upright on a rung, how far should the rung at shoulder height be from the fire fighter?
an arm’s length
What is the most likely consequence if the butt of a ladder is placed too close to the side of the building?
The tip will pull away from the wall
When should the building be used to anchor the butt during a ladder raise?
When a single fire fighter raises an extension ladder
Which action is potentially hazardous while raising an extension ladder?
Placing a foot under a fly section
What is the rope or cable that is used to extend or hoist the fly section of an extension ladder?
halyard
Which statement is correct about sliding your hands long the underside of the beams while climbing a ladder?
This practice provides you with three continuous points of contact.
What is the proper climbing angle for a ladder?
75º
Which NFPA standard deals with use, maintenance, and service testing of in-service fire department ground ladders?
1932
Which NFPA standard sets minimum performance standards for aerial ladders and elevating platforms?
1901
What are the two main structural components that run the entire length of a ladder?
Beams
Which part is specifically designed to prevent the beams of a wooden ladder from separating?
Tie rod
What is the very top of a ladder called?
Tip
What are butt spurs on a ladder?
Spikes on the base that keep it from slipping
What is the function of stops on an extension ladder?
Prevent overextension
Which term describes a power-operated ladder that is permanently mounted on a fire apparatus?
Aerial
Another term for a portable ladder is a __________ ladder.
ground
The purpose of the hooks of a roof ladder is to:
secure the tip of the ladder to the peak of a pitched roof.
When is it acceptable to use a roof ladder as a free-hanging ladder?
Never
Why should ground ladders that are unused be cleaned periodically?
To remove accumulated road grime
How often should periodic ladder service testing be performed?
Annually
What is the likely result of a ladder striking an overhead obstruction while it is being raised?
Loss of control of the ladder
Portable ladders approved for fire service use can support up to:
750 lb (340 kg).
When a ladder is used to gain access to a roof, a minimum of _____ rungs should show above the roofline.
Five
Where should the tip of a ladder be placed for rescue operations from a window?
Immediately below the windowsill
When a ladder is carried by one fire fighter, where is the top beam?
On the shoulder
Which ladder is carried with the tip forward?
Roof
The two-fire fighter shoulder carry can be used with extension ladders up to _____ long.
35 ft (11 m)
On a three-fire-fighter ladder carry, how should the fire fighters align themselves?
All three on the same side of the ladder
For which situation is the three-fire fighter flat shoulder ladder carry best suited?
The ladder must be carried over short obstacles
When standing upright on a rung, how far should the rung at shoulder height be from the fire fighter?
An arm’s length
For a ladder contacting the wall 20 ft (6 m) above the ground, the base should be _____ from the wall.
5 ft (1.5 m)
What is the most likely consequence if the butt of a ladder is placed too close to the side of the building?
The tip will pull away from the wall
When should the building be used to anchor the butt during a ladder raise?
When a single fire fighter raises an extension ladder
Which knot is used to tie off a ladder halyard?
Clove hitch
Which action is potentially hazardous while raising an extension ladder?
Placing a foot under a fly section
Which part of a ladder transfers the weight of the person climbing it to the beams?
Rung
Before raising an extension ladder, you should check to make sure the:
area is clear of overhead obstructions.
Which is a safety rule for climbing a ladder?
Look upward only when necessary
Exposure of a metal ladder to a minimum temperature of approximately __________ will cause a heat sensor label to change color.
300°F (150°C)
What do the beams of a ladder directly support?
Rungs
What is a ladder I-beam usually made of?
Fiberglass
The top and bottom rails of a trussed beam are joined by:
truss blocks.
What is the rope or cable that is used to extend or hoist the fly section of an extension ladder?
Halyard
NFPA standards require that a pumper be equipped with at least _____ ladder(s).
Three
In general, what is the maximum reach for a 28-ft (8-m) ladder?
The second-story roof
Which is the primary function of a roof ladder?
Distribute the weight of fire fighters during roof operations
Which ladder can be converted from a straight ladder to an A-frame configuration?
Combination
At a minimum, how often should ground ladders be visually inspected?
Monthly
Which part(s) of a ladder should not be exposed to solvents?
Halyard
What is the proper climbing angle for a ladder?
75º
What is the term for keeping a ladder from slipping by applying one’s weight to the underside of it?
Heeling
A ladder belt or a leg lock should be used when:
reaching or working from a ladder.
What is the approximate floor-to-floor height of a commercial structure?
10–12 ft (3–3.65 m)
What is the maximum length of a straight or roof ladder that can be carried safely by one fire fighter?
18 ft (5.5 m)
Overextension of the fly section of an extension ladder is prevented by:
stops
Which ladder is usually carried up another ladder before being put into place?
Roof
When two or more fire fighters are carrying a ladder, what should the fire fighter closer to the butt end do?
Cover the butt spur with a gloved hand
A ladder is carried at arm’s length in a(n) ___________ carry.
suitcase
What is the approximate floor-to-windowsill height of a residential structure?
3 feet (1 m)
When lifting a ladder from the ground into the carrying position during the three-fire-fighter flat-shoulder carry, all three fire fighters should:
pivot during the lift.
When placed at the correct angle for climbing, the ratio of the ladder’s vertical reach to distance of the butt from the structure is _____ to one.
Four
Which type of raise is typically used when the ladder is raised perpendicular to the target surface?
Flat
What should be done with the excess halyard once an extension ladder is placed and extended?
Wrap it around rungs of the ladder
Which precaution should you take when raising the fly section of an extension ladder?
Do not wrap the halyard around your hands
Before climbing a ladder, fire fighters should make sure it is:
secured
Which statement is correct about sliding your hands long the underside of the beams while climbing a ladder?
This practice provides you with three continuous points of contact.
How many points of contact should a fire fighter maintain with the ladder when dismounting a ladder onto a roof?
Three
A ladder __________ is used to lower a rescuer into a trench or manhole.
A-frame
Which term describes the top or bottom component of a trussed beam?
Rail
Which part of the ladder is placed against the ground when the ladder is raised?
Butt
Which part of the ladder is raised or extended from the bed section?
Fly
Which NFPA standard sets minimum performance standards for aerial ladders and elevating platforms?
1901
Which NFPA standard deals with use, maintenance, and service testing of in-service fire department ground ladders?
1932
When raising a ladder, it should be kept a minimum of _____ from power lines.
10 ft (3 m)
Which type of ladder should be carried by more than one fire fighter?
Extension
Ladders consisting of a single section are _________ ladders.
straight
Poles used to stabilize long extension ladders are called:
staypoles.
A Bangor ladder:
is equipped with staypoles.
What is the maximum personnel load for a fire-service ladder?
Two fire fighters plus one victim
