Concrete Technology Questions and Answers – Strength and Durability Relationship

This set of Concrete Technology Multiple Choice Questions & Answers (MCQs) focuses on “Strength and Durability Relationship”.

1. Durability of concrete is proportional to _________
a) Sand content
b) Water cement ratio
c) Aggregate ratio
d) Cement aggregate ratio
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2. Strength of concrete show an increase with _________
a) Decrease in rate of loading
b) Increase in rate of loading
c) Unaffected by rate of loading
d) Depends on application of load
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3. Strength of concrete is ___________
a) \(f_{ck} = K(\frac{c}{C+W+A})^2\)
b) \(f_{ck} = K(\frac{C+A}{C+W+A})^2\)
c) \(f_{ck} = K(\frac{C+W}{C+W+A})^2\)
d) \(f_{ck} = K(\frac{C+W+A}{C+W+A})^2\)
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4. As per & 5456:200 Young’s modulus of concrete is _______________
a) 1000 f_ck
b) 5000 f_ck²
c) 5700 f_ck
d) 150 f_ck
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5. Strength of concrete is proportional to ______________
a) Sand content
b) Water cement ratio
c) Aggregate ratio
d) Cement water ratio
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6. Strength of concrete increase with _____________
a) Increase with w/c ratio
b) Decrease with w/c ratio
c) Decrease in size of aggregates
d) Decrease in curing time
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7. Strength of concrete increase with _________
a) Increase with w/c ratio
b) Increase in fineness of cement
c) Decrease in size of aggregates
d) Decrease in curing time
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8. Approximate ratio of the strength of the cement conc of 7 days to that of 28 days (2/3)?
a) .75
b) .85
c) 1
d) 1.15
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9. Approximate ratio of strength of the 30 cm cube to that of 15 cm cube is _____________
a) 1.1
b) 1
c) .9
d) .75
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10. Approximate ratio of direct tensile strength to flexural strength is ____________
a) .25
b) .33
c) .5
d) .05
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Sanfoundry Global Education & Learning Series – Concrete Technology.

To practice all areas of Concrete Technology, here is complete set of 1000+ Multiple Choice Questions and Answers.

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