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Inspector 2022 > Training Bulletin 4 > Flashcards

Training Bulletin 4 Flashcards

1
Q

What is the percentage of fuel that tanker trucks transport

A

90%

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2
Q

Who regulates transportation of tanker trucks?

A
  • DOT through National highway traffic safety administration.
  • Bureau of carrier safety
  • Office of HAZMAT
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3
Q

What is the order of primary responsibility with tanker truck transportation?

A
  • Life
  • Property
  • Environment
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4
Q

What is a safety concern when opening valves?

A

Opening valves may open vents which could cause larger spills

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5
Q

What types of material are all tanker trucks designed to carry?

A
  • Flammable liquids
  • Combustible liquids
  • Class B poisons
  • Liquid food vapor less than 3 PSI
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6
Q

How many gallons does a single tank truck with 2 axles store?

A

3000 gallons

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7
Q

How many gallons does a single tank truck with 3 axles store?

A

5000 gallons

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8
Q

How long are tank tractors with a semi trailer connected by a fifth wheel?

A

40ft long

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9
Q

How many gallons can a tank tractor with a semi trailer store?

A

9000 gallons

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10
Q

How long are tank trucks pulling a two axle trailer?

A

Each truck and trailer tank is approximately 20 feet long

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11
Q

How many gallons can a tank truck pulling a two axle trailer store?

A

Truck tank-4200
Trailer tank-4800
9000 total

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12
Q

What shape are the non pressurized liquid tanks?

A

Elliptical shaped

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13
Q

How thick is the aluminum on non pressurized liquid tanks? Where is it thickest?

A

3/16 of an inch. On the bottom

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14
Q

What are double bulkheads used for?

A

Used for different products with different flash points

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15
Q

Where is the plumbing and valves for off loading product located?

A

Under the tank

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16
Q

Where are the manhole and vapor recovery valves located?

A

On top of tank

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17
Q

Prior to up-righting a full tanker, what must be done?

A

Off load product first

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18
Q

What is the purpose of baffle in the tank?

A

They are for strength. They do very little to reduce surge of the product

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19
Q

Due to leaks, what may have been done to the bulkheads?

A

They may have been illegally plugged

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20
Q

What needs to happen if fluid is suspected in the void space?

A

HAZMAT Task force will drill and pump compartment

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21
Q

What is the reason for the space above each compartment?

A

It’s a vapor compartment-it allows for expansion

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22
Q

What is located on top of the tank? Particularly in case of a rollover

A

Reinforce rails

23
Q

product is off loaded through gravity through what?

A

Internal valves

24
Q

What position do the internal valves default ?

A

Closed position

25
How is the internal valve open?)
By overcoming the heavy spring pressure that utilizes either air, hydraulic or mechanical power
26
How is an emergency shut down accomplished
By activating switches located at the left front corner & at the main panel on the right sidež
27
Exterior piping is constructed with what?
Built in shear points
28
Shear points are engineered to?
Fail upon impact, before damage can occur to internal valves &plumbing
29
What is the PSI for the pressure relief valves on tanks?
3-5 PSI
30
Smaller single tanks are designed to make ___ deliveries?
Multiple
31
How far should you eliminate potential ignition sources of you have a potential leak?
Minimum of 100 feet
32
Before disconnecting or disabling a battery, the LEL must be below what?
10LEL
33
What size hose should be used if the vehicle or tire is on fire?
1 1/2 hose (125GPM) minimum
34
For an immediate life hazard or rescue operation, what type of water should be used?
Foam! Plain water is acceptable if foam is not available or delayed
35
What is the danger of directing the cooling stream into the flames or into the cargo tank?
It will cause the burning fuel to overflow and spread the fire
36
Before starting any extinguishment operations, it is imperative to get what in place?
- apparatus - personnel - equipment
37
How is AR AFFF applied?
In a soft arc
38
How many feet does fuel burn per hour?
1 foot
39
How many hours will it take to burn off 4 feet of fuel?
4 hours
40
At what degrees will tanks melt?
1,200 degrees
41
What is the gross weight of gasoline tank vehicle, and product?
80,000 gallons
42
For uprighting ops, how many commercial tow wreckers are required?
2-20 ton commercial tow wreckers
43
Off loading of fuel requires HAZMAT to do what?
Drill a 4” hole through aluminum tank
44
How many gallons of class B foam do LAFD foam tenders carry?
1000 gallons
45
Any request for a foam tender should trigger what?
The dispatching of a second foam tender
46
100 square feet of burning liquid would require how many gallons of concentrate at 3%?
31 gallons
47
What sizes are available for vacuum trucks?
2,500 & 5,000 gallons
48
Vacuum trucks can hold approximately how much of their rated capacity?
90%
49
How many 5,000 gallon vacuum trucks should be ordered for up to 9,000 gallons?
3 vacuum trucks
50
How many 5,000 gallon trucks should be ordered for up to 4,800 gallons?
2 vacuum trucks
51
How many cleanliness standards are there when referring to vacuum trucks?
3 standards
52
What is considered a “dirty” vacuum truck?
Tank is empty of product, but it has not been cleaned
53
What is considered a “clean” vacuum truck?
Tank is empty of product and has been washed with water, but there is a possible trace of water and product from the previous load
54
What is considered a “super clean” vacuum truck?
Tank has been chemically cleaned and is free of product.

Inspector 2022 (7 decks)

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