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
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Chapter2: Loads On Structures
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UNIT – I
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
4. The mixture of different ingredients of cement, is burnt at
A. 1000°C
]
B. 1200°C
C. 1400°C
D. 1900°C
5. Hydration of cement is due to chemical action of water with
[
A. Tricalcium silicate and dicalcium silicate
B. Dicalcium silicate and tricalcium aluminate
C. Tricalcium aluminate and tetra calcium alumino ferrite
D. All the above.
6. The size of vicat needle, used to conduct setting of cement is
A. 10mm Dia
7. To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a
B. 1mm Square
C.3mm SquareD. 10 mm Dia
temperature between
A. 1100° and 1200°C B. 1200° and 1300°C C. 1300° and 1400°C D.1400° and 1500°C
8. Workability improved by adding
A. air-entraining agent
9. The commonly used material in the manufacture of cement is
B. foaming agent
C. oily-agent D. all the above
A. sand stone
B. Slate
C. lime stone
D. graphite.
10. Pick up the correct proportions of chemical ingredients of cement
A. Lime: Silica: Alumina: Iron oxide: 63: 22: 6: 3
B. Silica: Lime: Alumina: Iron oxide: 63: 22: 6: 3
C. Alumina: Silica: Lime: Iron oxide: 63: 22: 6: 3
D. Iron oxide: Alumina: Silica: Lime: 63: 22: 6: 3
11. The high strength of rapid hardening cement at early stage, is due to its
A. finer grinding
C. increased lime cement
B. burning at high temperature
D. higher content of tricalcium.
Transcribed Image Text:UNIT – I 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 4. The mixture of different ingredients of cement, is burnt at A. 1000°C ] B. 1200°C C. 1400°C D. 1900°C 5. Hydration of cement is due to chemical action of water with [ A. Tricalcium silicate and dicalcium silicate B. Dicalcium silicate and tricalcium aluminate C. Tricalcium aluminate and tetra calcium alumino ferrite D. All the above. 6. The size of vicat needle, used to conduct setting of cement is A. 10mm Dia 7. To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a B. 1mm Square C.3mm SquareD. 10 mm Dia temperature between A. 1100° and 1200°C B. 1200° and 1300°C C. 1300° and 1400°C D.1400° and 1500°C 8. Workability improved by adding A. air-entraining agent 9. The commonly used material in the manufacture of cement is B. foaming agent C. oily-agent D. all the above A. sand stone B. Slate C. lime stone D. graphite. 10. Pick up the correct proportions of chemical ingredients of cement A. Lime: Silica: Alumina: Iron oxide: 63: 22: 6: 3 B. Silica: Lime: Alumina: Iron oxide: 63: 22: 6: 3 C. Alumina: Silica: Lime: Iron oxide: 63: 22: 6: 3 D. Iron oxide: Alumina: Silica: Lime: 63: 22: 6: 3 11. The high strength of rapid hardening cement at early stage, is due to its A. finer grinding C. increased lime cement B. burning at high temperature D. higher content of tricalcium.
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