Powered Equipment Flashcards

1
Q

What is each directional movement of a piston in its range of travel called?

A

The stroke

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2
Q

In a 4 stroke engine, how many times must a piston move up AND down to complete a cylcle?

A

2 Times(2 revolutions of the crankshaft)

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3
Q

What kind of fuel will a 4 stroke engine use?

A

Gas or Diesel

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4
Q

In which stroke does a spark plug fire to ignite the fuel/air mixture?

A

The Compression stroke

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5
Q

Which stroke produces the engines power?

A

The power stroke

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6
Q

One the _____ movement of the piston, waste gasses are ______ and an air/fuel mixture is _____ into the cylinder by the _____ generated

This is stroke #____ on a 2 stroke engine

A

Downward, exhausted, drawn, vacuum

Stroke #1

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7
Q

On the ____ movement of the piston the air/fuel mixture is ______ generating heat. When the piston reaches the _____ of its upward travel the spark plug fires igniting the mixture.

This is stroke #____ on a 2 stroke engine

A

Upward, compressed, top

Stroke #2

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8
Q

What are the two power saws that we have?

A

Chain saws and rotary circular saws

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9
Q

What kind of internal combustion engines do all of our power saws have?

A

2 stroke

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10
Q

What are the uses for power saws?

4

A

Ventilation, forcible entry, extrication, building collapse

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11
Q

On what kind of apparatuses are power saws found on?

A

Ladder trucks, ladder tenders, heavy rescue 04, engines

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12
Q

Ladders/Tenders and Heavy Rescue 04 usually carry…

A

2 chain saws and one rotary saw

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13
Q

All TFD engines are now equipped with a…

A

Rotary saw and an assortment of blades

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14
Q

What are the 4 models of circular saws that we have?

A

Stihl TS-360, TS-400 TS-420, TS-460

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15
Q

What is the proper ratio of fuel/2 stroke oil? How many ounces do you put in 1 gallon to make that ratio?

A

50/1

2.5oz

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16
Q

All of the circular saws that we have use what size blade?

A

12”-14”

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17
Q

What is the displacement(size of the motor) for the TS-360, TS-400 TS-420, TS-460?

A
  1. 68ci
  2. 9ci
  3. 07ci
  4. 42ci
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18
Q

What is the max RPM for the TS-360, TS-400 TS-420, TS-460?

A

5000
5350
5350
5350

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19
Q

What is the weight without a blade for the TS-360, TS-400 TS-420, TS-460?

A
  1. 9lbs
  2. 5 lbs
  3. 3lbs
  4. 3lbs
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20
Q

What are the 3 saw blade types for circular saws

A

Steel carbide tipped blade
Composite blade
Rescue blade

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21
Q

What is the rescue blade able to cut?

A

Concrete, brick, masonry block, wood, steel, iron, glass, and plastic

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22
Q

What is the rescue blade made out of?

A

Steel core with industrial cutting diamonds vacuum-brazed to the edge

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23
Q

What is the maximum operating speed of the rescue blade?

A

5400 RPM

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24
Q

How much does the rescue blade weigh?

A

6lbs

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25
The rescue blade can be _____ cooled
Water
26
Where is the rescue blade located?
On all engines, ladders, and ladder tenders
27
When using the rescue blade, what should you do to make sure the blade doesn't "bog" in the cut?
Keep the saw RPM high
28
On a rescue blade the diamond edge may glaze up. What should you do if this happens?
Stick the tip of the blade while spinning at high RPMs into asphalt, concrete, block, brick, etc. to deglaze the cutting edge
29
You must never stop the rotation of the rescue blade by... Doing this will...
Sticking it into something Shorten the blade's life
30
What are steel carbide tipped blades used for?
Cutting wood and non ferrous metals (copper/aluminum)
31
What are "non-ferrous" metals?
Metals that don't have iron
32
Replace the steel carbide tipped blade when ____ of the tips are missing
1/3
33
What must you do before bringing the steel carbide tipped blade into contact with a surface?
Run the saw at full throttle
34
What are composite blades made out of?
Fiberglass and epoxy impregnated with an abrasive material
35
What are composite blades used for?
Cutting steel, concrete, and masonry
36
What speed must composite blades be spinning before contacting the work surface?
Idle speed
37
What mus be used to absorb or stop the transfer of vibration from the saw to the blade?
Blotters
38
Why must composite blades be stored away from petroleum products?
Petroleum products may cause break down of the blade
39
To change a circular saw blade, you must engage the _____ _____ _____
Spindle locking pin
40
What is the washer called that sits on the blade on a circular saw?
Thrust washer
41
What kind of PPE must be worn when starting a saw?
Full PPE, safety glasses, and helmet with shield down
42
Before starting the circular saw and flipping the switch to "on", what 3 things must you do?
Check to see that the proper blade is installed and that it is tight Make sure the blade safety guard is in the proper starting position Chose a stable platform to start the saw
43
Before starting the saw, you must always clear...
In front and behind you
44
Before yanking on the pull cord, you must engage the...
Starter Pawls
45
After you turn a circular saw off, you must wait until ________________ before placing the saw on the ground
The blade stops turning
46
What are the 4 models of chain saws that we have?
Stihl 029 | Stihl MS 310, MS 460, MS 660
47
Chain saws have what type of clutch?
Centrifugal
48
The two main components that have to do with how the chain moves are the....
Clutch shoe and the sprocket drum
49
Which part of the chainsaw is attached to the engine crankshaft?
The clutch shoe
50
What engine sizes do the Stihl 029, MS310, MS460, and MS660 have?
3. 3ci 3. 6ci 4. 67ci 5. 6ci
51
How much do the Stihl 029, MS310, MS460, and MS660 weigh without the bar and chain?
13lbs 13lbs 15.4lbs 16.5lbs
52
The Stihl 029, MS310, and MS460 have how long of a bar, how many links, how many teeth, and what type of chain?
20" bar 72 links 36 Carbide tipped teeth Single rake chain
53
What are the fuel capacities for the Stihl 029, MS310, MS460, and MS660?
1. 2 pints 1. 2 pints 1. 69 pints 1. 74 pints
54
How many HP does the Stihl MS660 put out?
7HP
55
On the Stihl MS660, how long is the bar, how many links, and how many teeth?
36" 96 links 48 carbide tipped teeth
56
Where can you find the Stihl MS660?
On Ladder 1
57
What will all the chain saws cut?
Wood roof sheathing, asphalt shingles and sheets, fiberboard and foam board under layment, thin non-ferrous metals
58
What are the things that a chain saw cannot cut?
Masonry tiles, concrete, heavy metal sheeting, metal bars/pipes/supports, rock or clay roof coverings
59
What angle must you cut at when using the chain saw?
45 degrees
60
You need to be aware when the tip of a chainsaw makes contact with materials being cut, you might encounter ______
Kickback
61
All cuts with saws begin at full throttle except with _______ blades
Composite
62
How should you position your body when cutting?
Out of the path of the saw blade
63
Can you carry circular saws with the engine running?
NO
64
You should never operate a saw above which part of your body?
Shoulder height
65
What kind of engines do all generators have?
4 stroke
66
Generators will use what type of fuel?
Gas | Rig mounted generator use diesel
67
The Homelite 2500 has what type of engine?
5HP Briggs and Stratton
68
For the Homelite 2500 and the Honda Multiquip, what is the wattage rating, voltage rating, and amperage rating?
2300W 120V 19.2 amps
69
What kind of engine does the Honda Multiquip have?
4HP Honda
70
What are the 3 uses for generators?
Power electric smoke ejectors, Halogen lights, and water vacuums
71
How long are the electric cord reels associated with generators?
50'
72
What is a junction box?
Multiple outlets from one power plant
73
What is the pigtail size range?
18" to 24"
74
What are the 4 light ratings that are used with generators?
300, 500, 750, 1000 watt
75
Can you start a generator under a load?
NO
76
How often do you check fuel and oil levels on a generator?
Daily
77
You must open the fuel _______ before starting the generator
Petcock
78
Why can't you use a generator indoors?
Exhaust
79
Where are smoke ejectors located?
On all engines, ladders, and ladder tenders
80
What are smoke ejectors used for?
Reduce smoke and heat in a structure | Ventilate confined spaces or disperse vapors
81
What are the 2 wattage ratings for electric smoke ejectors?
750 and 1000
82
On electric smoke ejectors, how much air will a 16" and a 20" blade move?
5200CFM | 9500CFM
83
What are some advantages of an electric smoke ejector?
Lighter, no emissions, simple to operate, will work in an oxygen deficient atmosphere
84
On an electric smoke ejector, what would model number "P 164 SE" mean?
``` Portable 16" blade length 4 blades Shape of a square Explosion proof motor ```
85
What kind of engines do gas powered smoke ejectors have?
4 stroke gas powered Honda engine
86
How many horsepower do gas powered smoke ejectors have?
4-5.5
87
How many blades do gas powered smoke ejectors have?
2-7 blades
88
What are gas powered smoke ejector blades made out of?
Laminated Hardrock Maple or metal
89
What is the range of cubic feet per minute on gas powered smoke ejectors?
10000 to 20000 CFM
90
How is fan speed adjusted on gas powered smoke ejectors?
With the throttle
91
You can use a gas powered smoke ejector indoors if you....
Use an exhaust extender
92
On a circular saw with a 14" blade, what is the cutting depth?
4.9"
93
When adjusting the V belt tension on the Stihl TS-360, what is the proper tension?
3/16-3/8"