Concrete Technology Questions

• The type of aggregates of same nominal size, which contain less voids when compacted, are
• The grade of concrete M 150 means that compressive strength of a 15 cm cube after 28 days, is
• Slump test of concrete is a meausre ofits
• The bulk density of aggregates, is generally expressed as
• If the effective working time is 7 hours and per batch time of concrete is 3 minutes, the output of a concrete mixer of 150 litre capacity, is
• Joints in concrete structures, are provided
• The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
• If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is
• Ordinary Portland cement is manufactured from
• Pick up the incorrect statement from the following:
• Sand requiring a high water cement ratio, belongs to
• An ideal ware house, is provided
• Gypsum is added for
• If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is
• Pick up the incorrect statement from the following:
• Non-uniform compaction may cause the concrete
• The entrained air in concrete
• A concrete having a slump of 6.5 cm, is said to be
• Pick up the incorrect statement from the following. While performing preliminary test on concrete
• For preparing ordinary concrete, the quantity of water used, is