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CDL Practice Test: Tankers

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CDL Practice Test: Tankers

Tankers Questions

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Good Luck!

What term describes the following statement: Liquids expand as they warm and you must leave room for the expanding liquid.
  • Frontage
  • Outage
  • Contraction
  • 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:

Liquids expand as they warm and you must leave room for the expanding liquid. This is called "outage."

Next
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.

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Next
While driving a liquid tanker around a curve, you should:
  • Be confident that your lower center of gravity will reduce the risk of a rollover
  • Use quick steering movements to keep liquids from collecting on one side
  • Understand that the posted speed for a curve may be too fast for a tank vehicle
  • Always drive the posted speed for a curve
This is a question from page 61 - click here to look up the answer

Quote From Page 85 Of The Illinois CDL Manual:

Curves: Slow down before curves, then accelerate slightly through the curve. The posted speed for a curve may be too fast for a tank vehicle.

TruckingTruth's Advice:

All maneuvers in a tanker truck should be made slower and smoother than other vehicle types.

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Next
Which of these tanker trucks are the least likely to have baffles installed
  • A tank carrying milk
  • A tank filled with oil
  • A tank filled with propane
  • A tank carrying automotive gasoline
This is a question from page 61 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

Unbaffled liquid tankers (sometimes called "smooth bore" tanks) have nothing inside to slow down the flow of the liquid. Therefore, forward-and-back surge is very strong. Unbaffled tanks are usually those that transport food products (e.g., milk). (Sanitation regulations forbid the use of baffles because of the difficulty in cleaning the inside of the tank.) Be extremely cautious (slow and careful) in driving smooth bore tanks, especially when starting and stopping.

TruckingTruth's Advice:

Baffles make cleaning the inside of a tank vehicle very difficult. Since most food grade tankers have to be completely clean and sanitary before each load, it is very rare for food grade tankers to have baffles.

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Next
On all tank vehicles, the most important item to check for is:
  • Grounding and bonding cables are working properly
  • Leaks from the tank
  • Placards (if required) are present and undamaged
  • 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
What type of tanker trailers are normally unbaffled?
  • Fuel tankers
  • All tanker trucks are equipped with baffles
  • Tankers designed to haul non-liquid products
  • Food grade tankers
This is a question from page 61 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

Unbaffled liquid tankers (sometimes called "smooth bore" tanks) have nothing inside to slow down the flow of the liquid. Therefore, forward-and-back surge is very strong. Unbaffled tanks are usually those that transport food products (e.g., milk). (Sanitation regulations forbid the use of baffles because of the difficulty in cleaning the inside of the tank.) Be extremely cautious (slow and careful) in driving smooth bore tanks, especially when starting and stopping.

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

Prev
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
  • Wet roads double the normal stopping distance
  • All of these statements are true
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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