Concrete Technology Questions and Answers – Tests on Workability of Fresh Concrete

This set of Concrete Technology Questions and Answers for Entrance exams focuses on “Tests on Workability of Fresh Concrete”.

1. The water–cement ratio is the ratio of _______________
a) Weight of water to the weight of cement
b) Volume of water to the volume of cement
c) Density of water to the Density of cement
d) Weight of water to the weight of aggregates
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2. A lower ratio leads to ____________
a) Higher strength and durability
b) Higher strength but low durability
c) Lower strength but high durability
d) Lower strength and durability
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3. Workability can be resolved __________
a) With not using of plasticizers
b) With use of plasticizers
c) With the use of both plasticizers and super plasticizers
d) With not using of both plasticizers and super plasticizers
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4. This image has _________

a) High w/c ratio
b) Low w/c ratio
c) High Strength
d) Low porosity
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5. Which has Low porosity?

A

B
a) A
b) B
c) Both are same
d) Can’t predict
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6. How to improve the workability of concrete.
a) Increase the w/c ratio
b) Decrease the w/c ratio
c) Decrease the size of aggregates
d) Don’t mix it for longer time
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7. What is workability?
a) When it is easily placed and compacted heterogeneous
b) When it is easily placed and compacted homogenous
c) When it is not easily placed
d) When it is easily placed but not compacted homogenous
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8. What is the compaction factor for low degree of workability?
a) .78
b) .85
c) .92
d) .95
View Answer

Sanfoundry Global Education & Learning Series – Concrete Technology.

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