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CE Quiz 31

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Question 1

Assertion A: For determining uniaxial compressive strength of concrete, cube is a better test specimen as compared to cylinder.
Reason R: Stress distribution is more uniform over the cross-section of a cylinder as compared to cube.
Select your answer based on the coding system given below

Question 2

Match the following:

Question 3

According to IS 456-2000, which one of the following statements about the depth of neutral axis

for a balanced reinforced concrete section is correct?

Question 4

A [Assertion] – Work load method uses a factored load (or load multiplied by a factor) to calculate the stress

R(reason)- Factored load account for uncertainty in calculation of load

Question 5

A : p(H) of water should not be less than 6 for R.C. C work:

R. Water P(H) less than 6 is very acidic.

Question 6

The flexural strength for M 35 grade of concrete (σ = 5)

Question 7

For M30 grade ratio of long term elastic coefficient to short term elastic coefficient? (Age of loading = 28 days)

Question 8

Let the characteristic strength be defined as that value, below which not more than 50% of the results are expected to fall. Assuming a standard deviation of 4 MPa, the target mean strength (in MPa) to be considered in the mix design of a M25 concrete would be

Question 9

Creep Strain is

Question 10

A concrete surface is exposed to sea water spray, corrosive fumes or reverse freezing conditions.

Find out the minimum bags of cement require for construction of 5m³ of footing?

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