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CDL Practice Test: Tankers

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CDL Practice Test: Tankers

Tankers Questions

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Good Luck!

All of the following require a Tanker endorsement, except:
  • Portable tank with a rated capacity of 10,000 gallons
  • Portable tanks with a rated capacity of less than 1,000 gallons
  • Large tanks of more than 1,000 gallons enclosed in a box trailer
  • Tank that is permanently attached to the vehicle chassis
This is a question from page 60 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

A "tank vehicle" is used to carry any liquid or gaseous material in a tank that is permanently or temporarily attached to the vehicle or chassis. However, this does not include portable tanks with a rated capacity of less than 1,000 gallons.

Next
On all tank vehicles, the most important item to check for is:
  • Leaks from the tank
  • Placards (if required) are present and undamaged
  • Grounding and bonding cables are working properly
  • Baffles are not damaged
This is a question from page 60 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

On all tank vehicles, the most important item to check for is leaks. Check under and around the vehicle for signs of any leaking. Do not carry liquids or gases in a leaking tank.

TruckingTruth's Advice:

While there are many other items which can be considered the "most important", most state manuals specifically state that checking for leaks is the most important inspection.

Prev
Next
Baffled tanks are:
  • Liquid tanks with several bulkheads containing holes that liquid can flow through
  • Used only for gas products
  • Tanks without any bulkheads
  • Designed to contain several solid bulkheads
This is a question from page 61 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

Baffled liquid tanks have bulkheads in them with holes that let the liquid flow through. The baffles help to control the forward and backward liquid surge. Side-to-side surge can still occur. This can cause a roll over.

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Next
Regarding stopping distance while driving a tanker, which statement is false?
  • Fully loaded tankers take longer to stop than empty ones
  • Liquid surge may force your truck forward after you have already come to a complete stop
  • All of these statements are true
  • Wet roads double the normal stopping distance
This is a question from page 61 - click here to look up the answer

Quote From Page 85 Of The Illinois CDL Manual:

Stopping distance - Keep in mind how much space you need to stop your vehicle. Remember that wet roads double the normal stopping distance. Empty tank vehicles may take longer to stop than full ones.

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Next
While driving a liquid tanker without Anti-Lock Brakes, all of the following statements are true, except:
  • All of these answers are true
  • Use controlled braking to avoid an accident
  • Steer quickly and swerve around a hazard while braking at the same time
  • Use stab braking to avoid an accident
This is a question from page 61 - click here to look up the answer

Quote From Page 85 Of The Illinois CDL Manual:

To drive tank vehicles safely, you must follow all safe driving rules:

Braking – If you must make a quick stop to avoid an accident, use controlled or stab braking. If you do not remember how to stop using these methods, review Section 2.13. Also, remember that if you steer quickly while braking, your vehicle may roll over.

Prev
Next
How much do liquids expand as they warm?
  • different liquids expand by different amounts
  • Most liquids do not expand when heated
  • Liquids expand at 1kg/m per 10 degree increase
  • None of these answers are correct
This is a question from page 61 - click here to look up the answer

Quote From Page 85 Of The Illinois CDL Manual:

Never load a cargo tank totally full. Liquids expand as they warm and you must leave room for the expanding liquid. This is called "outage." Since different liquids expand by different amounts, they require different amounts of outage. You must know the outage requirement when hauling liquids in bulk.

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Next
All of the following statements about Liquid Surge are correct, except:
  • If the truck is on a slippery surface such as ice, the wave can shove a stopped truck out into an intersection
  • Results from movement of the liquid in partially filled tanks
  • When coming to a stop, the liquid will surge back and forth
  • When the surge hits the end of the tank, it tends to push the truck in the opposite direction the wave is moving
This is a question from page 61 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

Liquid surge results from movement of the liquid in partially filled tanks. This movement can have bad effects on handling. For example, when coming to a stop, the liquid will surge back and forth. When the wave hits the end of the tank, it tends to push the truck in the direction the wave is moving. If the truck is on a slippery surface such as ice, the wave can shove a stopped truck out into an intersection. The driver of a liquid tanker must be very familiar with the handling of the vehicle.

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Next
When loading a tank, you should:
  • Expect liquid to evaporate and lighten your gross weight over time
  • Always load a cargo tank with "filler" so that it's completely filled
  • Use disposable baffles and barriers when hauling food grade tankers
  • Never load a cargo tank so that it's totally full
This is a question from page 61 - click here to look up the answer

Quote From Page 85 Of The Illinois CDL Manual:

Never load a cargo tank totally full. Liquids expand as they warm and you must leave room for the expanding liquid. This is called "outage." Since different liquids expand by different amounts, they require different amounts of outage. You must know the outage requirement when hauling liquids in bulk.

A full tank of dense liquid (such as some acids) may exceed legal weight limits. For that reason, you often may only partially fill tanks with heavy liquids. The amount of liquid to load into a tank depends on:

  • The amount the liquid will expand in transit.
  • The weight of the liquid.
  • Legal weight limits.
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