Concrete Technology and Design Multiple Choice Tests - Set 02 - ObjectiveBooks

Concrete Technology and Design Multiple Choice Tests - Set 02

Practice Test: Question Set - 02

1. Critical section for shear in case of flat slabs is at a distance of
    (A) Effective depth of slab from periphery of column/drop panel
    (B) d/2 from periphery of column/capital/ drop panel
    (C) At the drop panel of slab
    (D) At the periphery of column

2. For road pavements, the cement generally used, is
    (A) Ordinary Portland cement
    (B) Rapid hardening cement
    (C) Low heat cement
    (D) Blast furnace slag cement

3. Pick up the incorrect statement from the following:
    (A) Space between the exterior walls of a warehouse and bag piles should be 30 cm
    (B) Cement bags should preferably be piled on wooden planks
    (C) Width and height of the pile should not exceed 3 m and 2.70 m respectively
    (D) None of these

4. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine's theory
    (A) Is always less than 1
    (B) Is always greater than 1
    (C) Can be more than 1
    (D) Can be less than 1

5. Addition of pozzolana to ordinary port land cement, causes
    (A) Decrease in early strength
    (B) Reduction in chemical action with sulphates
    (C) Increase in shrinkage
    (D) All the above

6. Pick up the correct statement from the following:
    (A) The maximum size of a coarse aggregate, is 75 mm and minimum 4.75 mm
    (B) The maximum size of the fine aggregate, is 4.75 mm and minimum 0.075 mm
    (C) The material having particles of size varying from 0.06 mm to 0.002 mm, is known as silt
    (D) All the above

7. In a counterfort retaining wall, the main reinforcement is provided on the
    (i) Bottom face in front counterfort
    (ii) Inclined face in front counterfort
    (iii) Bottom face in back counterfort
    (iv) Inclined face in back counterfort
    The correct answer is
    (A) (i) and (ii)
    (B) (ii) and (iii)
    (C) (i) and (iv)
    (D) (iii) and (iv)

8. For construction of structures in sea water, the cement generally preferred to, is
    (A) Portland-pozzolana cement
    (B) Quick setting cement
    (C) Low heat Portland cement
    (D) Rapid hardening cement

9. Curing of pavements, floors, roofs and slabs, is done by
    (A) Membrane method
    (B) Ponding method
    (C) Covering surface with bags
    (D) Sprinkling water method

10. The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of
    (A) 0.367 xu
    (B) 0.416 xu
    (C) 0.446 xu
    (D) 0.573 xu
Where xu is the depth of neutral axis at the limit state of collapse

11. Pick up the correct statement from the following:
    (A) Construction joints are necessarily planned for their locations
    (B) Expansion joints are provided to accommodate thermal expansion
    (C) Construction joints are provided to control shrinkage cracks
    (D) All the above

12. The bulk density of aggregates, depends upon
    (A) Shape
    (B) Grading
    (C) Compaction
    (D) All the above

13. In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively
    (A) Compressive and tensile
    (B) Tensile and compressive
    (C) Both compressive
    (D) Both tensile

14. The main object of compaction of concrete, is:
    (A) To eliminate air holes
    (B) To achieve maximum density
    (C) To provide intimate contact between the concrete and embedded materials
    (D) All the above

15. Which of the following has high tensile strength?
    (A) Plain hot rolled wires
    (B) Cold drawn wires
    (C) Heat treated rolled wires
    (D) All have same tensile strength

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