Practice Recommended Aggregate Size (3.4) - Lubricating Process - Construction Engineering & Management

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9 questions

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6 sample questions

Question 1.
Why is lubrication important before pumping?
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Think about what could happen without lubrication.
Question 2.
What is the maximum size of aggregate recommended?
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Recall the guidelines for pumping efficiency.
3Question 3.
What should be done before pumping concrete?
- Flushing with water
- Lubrication with mortar grout
- Pouring without preparation
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Consider what helps in smooth operation.
4Question 4.
True or False: Aluminium pipes are ideal for concrete pumping.
- True
- False
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Recall the materials that should be avoided.
Question 5.
A construction project uses 35mm aggregates for pumping. Analyze the potential problems arising.
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Think about how materials interact inside the pump.
Question 6.
Explain the protocols needed for using lightweight aggregates in terms of preconditioning before pumping.
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Consider how varying materials require different handling!

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