What should be the maximum allowable time for placing ready mix concrete? The specification requires concrete placement within 90 minutes of batching at the plant. What is the significance of this 90 minutes & should this be used as a rejection criterion? What effects does the concrete has after that time period?
2860what is milling and types of milling?what is drilling and types of drilling? what is tapering and their types?
2961how to set calibration range in a DP transmitter to measure level for a closed tank and for an open tank,and also please explain me how to set calibration range for a DP flow transmitter in a line ?
1 9427why do mostly prefer to generate and distribute electricity in 3 phase..not in 4 phase or 5 phase.??
5 9541How to reduce current flowing in neutral due to unbalanced load conditions in a three phase system.
1 4194Post New IOCL Interview Questions
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