Concrete Technology and Design

1. 'Ware house pack' of cement means

1. Full capacity of the ware house
2. Pressure exertion of the bags of upper layers
3. Pressure compaction of the bags on lower layers
4. Packing the ware house

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2. 1% of voids in a concrete mix would reduce its strength by about

1. 5%
2. 10%
3. 15%
4. 20%

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3. A beam curved in plan is designed for

1. Bending moment and shear
2. Bending moment and torsion
3. Shear and torsion
4. Bending moment, shear and torsion

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4. A concrete having a slump of 6.5 cm, is said to be

1. Dry
2. Earth moist
3. Semi-plastic
4. Plastic

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5. A concrete using an air entrained cement

1. Has strength less than 10% to 15%
2. Has more resistance to weathering
3. Is more plastic and workable
4. Is free from segregation and bleeding

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6. A construction joint is provided where

1. Bending moment is small
2. Shear force is small
3. The member is supported by other member
4. All the above

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7. A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than

1. 1.5
2. 2
3. 2.5
4. 3

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8. A flaky aggregate is said to be elongated if its length is

1. Equal to the mean size
2. Twice the mean size
3. Thrice the mean size
4. Four times the mean size

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9. A higher modular ratio shows

1. Higher compressive strength of concrete
2. Lower compressive strength of concrete
3. Higher tensile strength of steel
4. Lower tensile strength of steel

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10. A T-shaped retaining wall mainly consists of

1. One cantilever
2. Two cantilevers
3. Three cantilevers
4. Four cantilevers

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