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CDL Practice Test: Tankers

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CDL Practice Test: Tankers

Tankers Questions

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Good Luck!

While driving a liquid tanker around a curve, you should:
  • Use quick steering movements to keep liquids from collecting on one side
  • Be confident that your lower center of gravity will reduce the risk of a rollover
  • Always drive the posted speed for a curve
  • Understand that the posted speed for a curve may be too fast for a tank vehicle
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.

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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When loading a tank, you should:
  • Use disposable baffles and barriers when hauling food grade tankers
  • Expect liquid to evaporate and lighten your gross weight over time
  • Always load a cargo tank with "filler" so that it's completely filled
  • 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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Unbaffled liquid tankers are sometimes called:
  • Unrestricted tanks
  • Selective range tanks
  • Smooth bore tanks
  • Free flow tanks
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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Regarding stopping distance while driving a tanker, which statement is false?
  • Fully loaded tankers take longer to stop than empty ones
  • All of these statements are true
  • Liquid surge may force your truck forward after you have already come to a complete stop
  • 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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What is Outage?
  • When liquids expand as they cool
  • When liquids condense as they cool
  • When liquids condense as they warm
  • When liquids expand as they warm
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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Next
On all tank vehicles, the most important item to check for is:
  • Placards (if required) are present and undamaged
  • Leaks from the tank
  • 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.

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Next
All of the following statements about Liquid Surge are correct, except:
  • 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
  • Results from movement of the liquid in partially filled tanks
  • 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.

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