Concrete Technology Sheet 2
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1) Question.
In prestressed concrete
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2) Question.
In a spherical dome the hoop stress due to a concentrated load at crown is
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3) Question.
The maximum value of hoop compression in a dome is given by
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4) Question.
Sinking of an intermediate support of a continuous beam
i) reduces the negative moment at support
ii) increases the negative moment at support
iii) reduces the positive moment at centre of span
iv) increases the positive moment at center of span
The correct answer is
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5) Question.
In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always
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6) Question.
A beam curved in a plan is designed for
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7) Question.
In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively
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8) Question.
Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to
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9) Question.
Shrinkage of concrete depends upon
i) humidity of atmosphere
ii) passage of time
iii) stress
The correct answer is
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10) Question.
The effect of creep on modular ratio is
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11) Question.
For a reinforced concrete section, the shape of shear stress diagram is
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12) Question.
The factor of safety for
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13) Question.
The fineness modulus of fine aggregate is in the range of
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14) Question.
1% of voids in a concrete mix would reduce its strength by about
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15) Question.
Poisson's ratio for concrete
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16) Question.
Finer grinding of cement
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17) Question.
Bulking of sand is maximum if moisture content is about
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18) Question.
In order to obtain the best workability of concrete, the preferred shape of aggregate is
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19) Question.
Modulus of rupture of concrete is a measure of
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20) Question.
As compared to ordinary portland cement, high alumnia cement has
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