171 Chainsaw Operations and Ventilation Quiz

Chains must be replaced when how many teeth are broken or damaged?

3 in a row or 6 total

What's the fuel mix for chainsaws?

50:1 Unleaded and 2-stroke oil

When starting a chainsaw you should what?

Engage the break

When a saw is broken what form is filled out and where does it go?

Form 47/ Camp 9

After mixing fuel for saw what should you do?

Create tag with label and date mixed

When cutting w/ a chainsaw you should what?

Start the cut at full throttle

Your first cut is a what?

Kerf Cut

Per manufacturer how do you start the saw?

Between legs or on the ground-3 points of contact

Saw bars used by LACoFD for roof ops is how long?

20 inches

What is not a daily checkout of the saw?

Emptying and refueling the reservoir

Saw's master control correct orientation?

OFF-RUN-WARM START- COLD START

Tactical vent is the removal of gas and heat? T/F

True

Ventilation by the fire department is what?

All the above

What are the main components of a lightweight panelized roof?

Beams, Perlins, and Rafters

Beams and rafters run parallel to each other? T/F

True

Why should you use caution on spanish tile style roofs?

Tile can disguise and hide fire beneath you

Best description of a hip style roof?

Similar to gable w/ sloping ends

When starting the saw what is the most important for safety?

Keeping the chain brake on

When operating a chainsaw to cut , it is best to?

Full throttle into your cut

What type of cut is used to find direction of rafters, roof decking, etc?

Inspection cut

What is an example of a dead load?

HVAC systems, billboards, etc.

When moving to a vent site, what is used every 15-20 ft?

Indicator Cuts

Coordinated attack must include what?

Communication

When exiting the ladder onto the roof you should what?

Sound the roof and step off

Engine 168 is assigned to assist quint 29 on roof operations. What would be a good operation?

Throw 2nd ladder close to work area for an escape route and climb that ladder

When is it okay to go cross country when on a conventional roof?

Never

WOMP stands for?

Wooden I Beam, Open Web Joist, Metal Gusset Plate, and Panelized

All can help you recognize raised foundation except for what?

18 inch concrete slab

Why must we recognize raised fondation?

Fire can creep under the floor

When comparing LW to conventional construction we must understand?

Time difference

Rafters in a single family dwelling?

Rest on the outside wall to the ridge beam

Gusset plates are?

18 gauge metal, 3/8 staple plates

3 types of arched roofs?

Bow, Tied, and Lamella

In lightweight construction the top chord is

under compression

What is unique in a pre 33?

King's Row

SFD rafter tails are indicators of what?

Pre 33 construction

Pilasters do what?

Support beam

Good indicator of the roof line is what?

Scuppers

Arched truss roof is what construction?

Conventional

Panelized roof is what construction?

Lightweight

Beams, purlins, and rafters make up what?

Panelized roof

Center rafter louvre cut should be?

Cut as high on the roof as possible

Something-2x6 or greater

Roof known for masking failure?

Tile

OSB, plywood, decking is examples of what?

Sheathing

Locations are identified as what?

A, B, C, D

Cross country is known as what?

Walking diagonally across the roof

After your done with your saw cut you should what?

Exit as soon as possible

Per LACoFD policy how many people are required to vent?

2

Onsite tour is also known as a?

Pre-plan

When exiting the roof you should store the chainsaw how?

Brake on and running

Biggest blower should be positioned?

Closer to encompass the whole door

You should cut from the uninvolved to the involved side? T/F

False

Sagging roof and a growing vent pipe are signs of imminent roof collapse? T/F

True

Heated smoke and gas bandk down and create a mushroom effect? T/F

True

On roof how should you walk?

Single file

When finished with your job on the roof you should stay on the roof? T/F

False

Type of construction, rafter direction are shown by what?

Inspection cut

Example of a live load?

Firefighters

E in laces is what?

Escape Route

Standard vent hole is how big?

4x4