Question Paper Civil Engineering
1. The Strength and the quality of concrete depend upon
a. Grading of the aggregate
b. Surface area of the aggregate
c. Surface texture of the aggregate
d. All of above
ans (d)
2. The construction of a temporary structure required to support an unsafe structure is called :
a. Underpinning
b. Shoring
c. Scaffolding
d. Jacking
ans (b)
3. When the effect of wind is considered for dwsign in addition to dead, live and impact load, the permission atress in concrete may be exceeded upto a limit of
a. 40.3%
b. 50.3%
c. 33.33%
d. 43.33%
ans (c)
4. Bulking is
a. Increase in volumenof sand due to moisture which keeps sand particles apart
b. Increase in density of sand due to impurities
c. ramming of sand so that it occupies minimum volume
d. Compacting of sand
ans (a)
5. The concrete cubes are prepared, cured and tested according to indian Standard code number
a. IS : 515
b. IS : 516
c. IS : 517
d. IS : 518
ans (b)
6. The percentage of the fine aggregate of fineness modulus 2.6 to be combined with coarse aggregate of fineness modulus 6.8 for obtaining the aggreof fineness modulus 5.4, is:
a. 40%
b. 50%
c. 60%
d. 30%
ans (d)
7. Grading of aggregate in a concert mix is necessary to achieve
a. adequate Workability
b. higher density
c. reduction of voids
d. better Durability
ans (b)
8. A compaction factor 0.88 indicates that Workability of concrete mix is :
a. Very low
b. Low
c. Medium
d. High
ans (c)
9. In case of multi-storeyed building, the forms to be removed first are
a. sides of beams and girders
b. column forms
c. bottom of beams and girders
d. All thr above at the same time
ans (a)
10. Shrinkage in Concrete can be reduced by using :
a. Low water cement ratio.
b. Less cement in the concrete.
c. Proper concrete mix.
d. All the above
ans (d)