Q.1
For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is
Q.2
The maximum ratio of span to depth of a slab simply supported and spanning in one direction, is
Q.3
In a doubly-reinforced beam if ‘c’ and ‘t’ are stresses in concrete and tension reinforcement, ‘d’ is the effective depth and ‘n’ is depth of critical neutral axis, the following relationship holds good
Q.4
Pick up the assumption for the design of a pre-stressed concrete member from the following:
Q.5
Pick up the incorrect statement from the following:
Q.6
Pick up the correct statement from the following:
Q.7
If jd is the lever arm and ΣO is the total perimeter of reinforcement of an R.C.C. beam, the bond stress at the section having Q shear force, is
Q.8
The minimum head room over a stair must be
Q.9
The spacing of transverse reinforcement of column is decided by the following consideration.
Q.10
‘P’ is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is ‘A’ and sectional modulus is ‘Z’. The maximum stress ‘f’ in the beam, subjected to a maximum bending moment ‘M’, is
Q.11
The design of heel slab of a retaining wall is based on the maximum bending moment due to:
Q.12
If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is
Q.13
If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm² and 1400 kg/cm² respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is
Q.14
A pile of length ‘L’ carrying a uniformly distributed load ‘W’ per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be
Q.15
Steel bars are generally connected together to get greater length than the standard length by providing
Q.16
If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is
Q.17
The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is
Q.18
In a singly reinforced beam, the effective depth is measured from its compression edge to
Q.19
The maximum ratio of span to depth of a cantilever slab, is
Q.20
An R.C.C. column is treated as long if its slenderness ratio is greater than
Q.21
The ratio of the breadth to effective depth of a beam is kept
Q.22
The steel generally used in R.C.C. work, is
Q.23
The advantage of reinforced concrete, is due to
Q.24
If l₁ and l₂ are the lengths of long and short spans of a two way slab simply supported on four edges and carrying a load w per unit area, the ratio of the loads split into w₁ and w₂ acting on strips parallel to l₂ and l₁ is
Q.25
The minimum thickness of a flat slab is taken
Q.26
Columns may be made of plain concrete if their unsupported lengths do not exceed their least lateral dimension
Q.27
The number of treads in a flight is equal to
Q.28
An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm φ placed symmetrically along the circumference. If it carries a load of 40,000 kg axially, the stress is
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