Concrete Technology Questions

• For an ordinary Portland cement
• Workability of concrete for a given water content is good if the aggregates, are
• 1.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of
• You are asked to construct a massive dam, the type of cement you will use, is
• Pick up the correct statement from the following:
• Ordinary concrete is not used for concrete grade
• Grading of sand causes great variation in
• Pick up the correct statement from the following:
• Shrinkage in concrete can be reduced by using
• Pick up the correct statement from the following i.
• An aggregate is said to be flaky, if its least dimension is less than
• The compaction of concrete, improves
• The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is
• Pick up the incorrect statement from the following:
• C.R.R.I. charts are used to obtain a relatioship between strength of concrete and
• Proper batching ensures
• If the depth of moist sand in a cylinder is 15 cm and the depth of the sand when fully inundated with water is 12 cm, the bulking of the moist sand, is
• Water required per bag of cement, is
• Addition of pozzolana to ordinary port land cement, causes
• For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: