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For the following questions answer them individually
Which of the beam given in the following Figs. is a determinate beam?
The effective slenderness ratio cantilever column is
$$ 0.5 L / r $$
$$ L / r $$
$$ \sqrt{2}L / r $$
$$ 2 L / r $$
The top diameter, bottom diameter and the height of the steel mould used slump test are
10 cm, 20 cm, 30 cm
10 cm, 30 cm, 20 cm
20 cm, 10 cm, 30 cm
20 cm, 30 cm, 10 cm
The early high strength of rapid hardening cement is due to its
increased content of gypsum
burning at high temperature
increased content of cement
higher content of tricalcium
Di-calcium silicate $$(C_2 S)$$
hydrates rapidly
generates less heat of hydration
hardens rapidly
has less resistance to sulphate attacks
Separation of coarse aggregates from concrete during transportation, is known as
bleeding
creeping
segration
evaporation
The resistance of an aggregate to wear is known is
impact value
abrasion resistance
shear resistance
crushing resistance
If fineness modulus of a sand is 2.5, it is graded as
very fine sand
fine sand
medium sand
coarse sand
Water-cement ratio is measured — of water and cement used per cubic metre of concrete
volume by volume
weight by weight
weight by volume
volume by weight
To prevent segregation, the maximum height for placing concrete, is
100 cm
125 cm
150 cm
200 cm
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