UNIT – I1. For quality control of Portland cement, the test essentially done isA. setting time2. Lower the normal consistency value,A. Lower will be the strength of concreteC. Higher will be the strength of concrete3. Under normal conditions using an ordinary cement, the period of removal of the form work,B. Soundness C. tensile strengthD. All the aboveB. Medium will be the strength of concreteD. None of the aboveis:]A. 7 days for beam soffitsC. 21 days for bottom beams over 6 m spansB. 14 days for bottom slabs of spans 4.6 m and moreD. All The Above4. The mixture of different ingredients of cement, is burnt atA. 1000°C]B. 1200°CC. 1400°CD. 1900°C5. Hydration of cement is due to chemical action of water with[A. Tricalcium silicate and dicalcium silicateB. Dicalcium silicate and tricalcium aluminateC. Tricalcium aluminate and tetra calcium alumino ferriteD. All the above.6. The size of vicat needle, used to conduct setting of cement isA. 10mm Dia7. To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at aB. 1mm SquareC.3mm SquareD. 10 mm Diatemperature betweenA. 1100° and 1200°C B. 1200° and 1300°C C. 1300° and 1400°C D.1400° and 1500°C8. Workability improved by addingA. air-entraining agent9. The commonly used material in the manufacture of cement isB. foaming agentC. oily-agent D. all the aboveA. sand stoneB. SlateC. lime stoneD. graphite.10. Pick up the correct proportions of chemical ingredients of cementA. Lime: Silica: Alumina: Iron oxide: 63: 22: 6: 3B. Silica: Lime: Alumina: Iron oxide: 63: 22: 6: 3C. Alumina: Silica: Lime: Iron oxide: 63: 22: 6: 3D. Iron oxide: Alumina: Silica: Lime: 63: 22: 6: 311. The high strength of rapid hardening cement at early stage, is due to itsA. finer grindingC. increased lime cementB. burning at high temperatureD. higher content of tricalcium.

All the tests namely setting time, soundness, tensile strength are essential for the quality check…

1. For quality control of Portland cement, the test essentially done is A. setting time 2. Lower the normal consistency value, A. Lower will be the strength of concrete C. Higher will be the strength of concrete 3. Under normal conditions using an ordinary cement, the period of removal of the form work, [ ] B. Soundness C. tensile strength D. All the above B. Medium will be the strength of concrete D. None of the above is: A. 7 days for beam soffits C. 21 days for bottom beams over 6 m spans B. 14 days for bottom slabs of spans 4.6 m and more D. All The Above

1. For quality control of Portland cement, the test essentially done is A. setting time 2. Lower the normal consistency value, A. Lower will be the strength of concrete C. Higher will be the strength of concrete 3. Under normal conditions using an ordinary cement, the period of removal of the form work, [ ] B. Soundness C. tensile strength D. All the above B. Medium will be the strength of concrete D. None of the above is: A. 7 days for beam soffits C. 21 days for bottom beams over 6 m spans B. 14 days for bottom slabs of spans 4.6 m and more D. All The Above

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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