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Engineering :: Concrete Technology


1.  The practical utility of concrete technology for civil engineers is to
A. enable them to know how to stock properly the materials required for concrete B. enable them to perform different tests concerning concrete
C. make them conversant with fundamental principles of concrete D. all of the above

2.  The strength and durability of concrete depends upon
A. size of aggregates B. grading of aggregates
C. moisture contents of aggregates D. all of these

3.  The breaking up of cohesion in a mass of concrete is called
A. workability B. bleeding
C. segregation D. creep

4.  The workability of concrete is defined as the
A. ease with which it can be mixed, transported and placed in position in a homogeneous state B. breaking up of cohesion in a mass of concrete
C. separation of water or water-cement mixture from the freshly mixed concrete D. none of the above

5.  The separation of water or water-cement mixture from the freshly mixed concrete is known as bleeding.
A. True B. False

6.  The continuous strain, which the concrete undergoes due to application of external loads, is called
A. workability B. bleeding
C. segregation D. creep

7.  A good concrete should be subjected to
A. maximum B. minimum

8.  Segregation in concrete results in
A. honey combing B. porous layers
C. surface scaling D. all of these

9.  Harshness in concrete is due to the excess of
A. water B. finer particles
C. middle sized particle D. coarser particles

10.  In order to avoid segregation, the concrete should not be thrown from a height.
A. Agree B. Disagree




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