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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 without Anti-Lock Brakes, all of the following statements are true, except:
  • All of these answers are true
  • Steer quickly and swerve around a hazard while braking at the same time
  • Use controlled braking to avoid an accident
  • 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.

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The amount of liquid to load into a tank depends on:
  • The weight of the liquid
  • The amount the liquid will expand in transit (outage)
  • Legal weight limits
  • All of these should be taken into consideration when loading liquid into a tank
This is a question from page 61 - click here to look up the answer

Quote From Page 85 Of The Illinois CDL Manual:

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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What is a Bulkhead?
  • Used to hold all liquid or gas to one side of the tank
  • A divider inside a tank to section off liquid or gas
  • Used to elevate liquid to a higher center of gravity
  • A device that is placed on the top of liquid or gas and compresses it as low as possible to decrease the center of gravity
This is a question from page 61 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

Some liquid tanks are divided into several smaller tanks by bulkheads. When loading and unloading the smaller tanks, the driver must pay attention to weight distribution. Do not put too much weight on the front or rear of the vehicle.

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All of the following statements about Liquid Surge are correct, except:
  • When coming to a stop, the liquid will surge back and forth
  • 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
  • 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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What is Liquid Surge?
  • When liquid naturally swirls inside of a tank
  • Results from movement of the liquid in partially filled tanks
  • None of these answers are correct
  • If the tank is punctured, the liquid will rush out of the opening
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.

TruckingTruth's Advice:

Liquid surge can result from nearly any conceivable movement. Steering left, right, accelerating, or slowing down can all cause liquid to surge. Even after stopping a liquid filled tanker, the liquid will surge back, then forward again, possibly forcing your truck to "jump" forward once more. That's why it's good practice to stay further back from vehicles, even when stopped.

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How much do liquids expand as they warm?
  • Liquids expand at 1kg/m per 10 degree increase
  • Most liquids do not expand when heated
  • None of these answers are correct
  • different liquids expand by different amounts
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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What term describes the following statement: Liquids expand as they warm and you must leave room for the expanding liquid.
  • Contraction
  • Outage
  • Frontage
  • 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."

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Why don't most food grade tankers come equipped with baffles?
  • To save room in the tank, most shippers of liquid food products prefer to forgo baffles so more product can be loaded
  • Food grade tankers are required to be fitted with baffles or bulkheads
  • Sanitation regulations forbid the use of baffles because of the difficulty in cleaning the inside of the tank
  • Food products are generally light enough that the entire tank can be filled, thus, limiting any liquid surge
This is a question from page 61 - click here to look up the answer

Quote From Page 84 Of The Illinois CDL Manual:

Sanitation regulations forbid the use of baffles because of the difficulty in cleaning the inside of the tank.

TruckingTruth's Advice:

Anytime you see a food grade tanker, it is safe to assume there are no baffles installed. Not only is that important for you to know when pulling a food grade tanker, but you can also drive differently around other vehicles that are pulling food grade tankers (give them more room).

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