Q.1.
The effect of adding calcium chloride in concrete isi) to increase shrinkageii) to decrease shrinkageiii) to increase setting timeiv) to decrease setting timeThe correct answer is
Q.2.
Bulking of sand is maximum if moisture content is about
Q.3.
The percentage of voids in cement is approximately
Q.4.
If the depth of actual neutral axis in a beam is more than the depth of critical neutral axis, then the beam is called
Q.5.
According to IS: 456-the column or the strut is the member whose effective length is greater than
Q.6.
The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by
Q.7.
For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is
Q.8.
The purpose of reinforcement in pre-stressed concrete is
Q.9.
Minimum grade of concrete to be used in reinforced concrete as per IS:456-is
Q.10.
In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on
Q.11.
According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is
Q.12.
Which of the following R.C. retaining walls is suitable for heights beyond 6m?
Q.13.
Which of the following has high tensile strength ?
Q.14.
In a counterfort retaining wall, the main reinforcement is provided on thei) bottom face in front counterfortii) inclined face in front counterfortiii) bottom face in back counterfortiv) inclined face in back counterEortThe correct answer is
Q.15.
In order to obtain the best workability of concrete, the preferred shape of aggregate is
Q.16.
Modulus of rupture of concrete is a measure of
Q.17.
Normally prestressing wires are arranged in the
Q.18.
A higher modular ratio shows
Q.19.
To minimize the effect of differential settlement, the area of a footing should be designed for
Q.20.
The load carrying capacity of a helically reinforced column as compared to that of a tied column is about