A Best Way To Crack Gorenment Job Exams

Civil Engineering Objective Questions { Concrete Technology }

127.  The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known
A. grading
B. curing
C. mixing
D. batching
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128.  Proper batching ensures
A. economy
B. durability
C. workability
D. all the above
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129.  Pick up the correct statement from the following :
A. The weight of ingredients of concrete mix, is taken in kilograms
B. Water and aggregates are measured in litres
C. The finished concrete is measured in cubic metres
D. All the above
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130.  For a concrete mix 1 ? 3 6 and water cement ratio 06 both by weight, the quantity of water required per bag, is
A. 10 kg
B. 12 kg
C. 14 kg
D. 16 kg
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131.  For batching 1 : 3 : 6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are :
A. 70 litres of sand and 120 litres of aggregates
B. 70 kg of sand and 140 litres of aggregates
C. 105 litres of sand and 140 litres of aggregates
D. 105 litres of sand and 210 litres of aggregates
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132.  The dimensions of a 35 litre forma for measuring aggregates by volume, are :
A. length 30 cm, breadth 25 cm, height 30 cm
B. length 39 cm, breadth 25 cm, height 32 cm
C. length 27 cm, breadth 27 cm, height 48 cm
D. length 220 cm, breadth 25 cm, height 40 cm
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133.  The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
A. 30 minutes
B. 40 minutes
C. 60 minutes
D. 75 minutes
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