Module 4 – Knowledge Check
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Question 1 of 5
1. Question
Fill in the blank.
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The tie down method relies on friction to provide the forces necessary to restrain the load. Because it relies on the coefficient of friction between the load and the truck surface it may not be suitable situations where the coefficient of friction is low such as steel on steel.
Complete the sentences
In these low friction situations the use of a between the surfaces may improve the friction coefficient.
In order to adequately restrain the load using the tie down method you need to know 5 things,
- The Mass of the load,
- Whether the load is blocked or unblocked
- The type of lashing the type of tensioner and the amount of pretension required
- The coefficient of friction,
- And the of the lashing
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Question 2 of 5
2. Question
Attaching is the simplest of the direct restrain methods as the lashings provide all of the force necessary to restrain the load.
Which of the following are true?
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Question 3 of 5
3. Question
Blocking and containing strategies rely on using structure on the vehicle to provide forces to assist in restraining the load.
Which of the following statements are true when using blocking or containing strategies:
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Question 4 of 5
4. Question
Here is the table from page 274 of the load restraint guide:
This table is for an unblocked load tied down using 50mm webbing strap pretensioned to 300kg force.
If the load is sitting on a rubber mat (high friction) and the lashings are almost vertical
How many lashings would it take to restrain a 10 tonne load?
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Question 5 of 5
5. Question
This table is used to calculate the required minimum lashing capacity to restrain forward movement.
If the angle effect is 0.5 and the mass of the load is 10 tonnes what is the minimum capacity of the chains.
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