Concrete Technology Quiz ||CE Quiz ||CE Daily Test Series

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1.Strength of concrete is directly proportional to

2 points

a. Cement water ratio

b. Water cement ratio

c. Sand Cement Ratio

d. Water Aggregate ratio

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2.Strengh Of concrete increase with

2 points

a. Increase in water cement ratio

b. Increase in fineness of cement

c. Decrease in curing time

d.Decrease in size of aggregate.

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3.Bulking of sand is maximum if moisture contents is about

2 points

a.4%

b. 2%

c.6%

d. 8%

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4.The lower water-cement ratio in concrete produces

2 points

a. More density

b. Small creep and shrinkage

c.more bond

d. All of the above

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5.An air retraining agent when added in concrete improves

2 points

a. Strength

b. Workability

c. Density

d.Durability

Other:

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6.If the slump of concrete mi is 60 mm it's Workability is

2 points

a. Low

b. Medium

c.high

d. Very High

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7.The maximum height for placing of concrete is

2 points

a. 100mm

b. 150cm

c. 100cm

d. 200cm

Other:

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8.Too wet concrete may cause

2 points

A. weakness of concrete

B. excessive laitance

C. segregation

D. lower density

E. all the above.

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9.The strength and quality of concrete depends on

2 points

a. Aggregate shape

b. Aggregate grading

c. Surface area of the aggregate

d.All of the above

Other:

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10.Pick up the compound responsible for early strength of cement from the following:

2 points

a. Tricalcium silicate

b. Di aluminate

c. Tri calcium aluminate

d.All the above

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