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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 is Outage?
  • When liquids condense as they cool
  • When liquids expand as they warm
  • When liquids condense as they warm
  • When liquids expand as they cool
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.
Next
Unbaffled liquid tankers are sometimes called:
  • Smooth bore tanks
  • Free flow tanks
  • Selective range tanks
  • Unrestricted 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.

Prev
Next
What term describes the following statement: Liquids expand as they warm and you must leave room for the expanding liquid.
  • Frontage
  • None of these answers are correct
  • Contraction
  • Outage
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."

Prev
Next
Which statement about liquid surge is true?
  • When liquid surge hits the end of the tank, it tends to push the truck in the direction the wave is moving
  • On tanker vehicles, brakes are designed to hold the vehicle in place when liquid surges forward
  • Liquid surge only occurs during acceleration or stopping and does not occur during turns
  • Liquid surge will not affect handling and will only affect braking or acceleration
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
Baffled tanks are:
  • Liquid tanks with several bulkheads containing holes that liquid can flow through
  • Designed to contain several solid bulkheads
  • Tanks without any bulkheads
  • Used only for gas products
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.

Prev
Next
On all tank vehicles, the most important item to check for is:
  • Grounding and bonding cables are working properly
  • Baffles are not damaged
  • Leaks from the tank
  • Placards (if required) are present and undamaged
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?
  • Tankers designed to haul non-liquid products
  • Fuel tankers
  • Food grade tankers
  • All tanker trucks are equipped with baffles
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.

Prev
Next
All of the following statements about Liquid Surge are correct, except:
  • 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
  • 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
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
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