Related Questions

In a singly reinforced beam, if the permissible stress in concrete reaches earlier than that in steel, the beam section is called
A Under-reinforced section
B Over reinforced section
C Economic section
D Critical section
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
A $$\frac{{{\text{mc}}}}{{\text{t}}} = \frac{{\text{n}}}{{{\text{d}} - {\text{n}}}}$$
B $$\frac{{{\text{m}} + {\text{c}}}}{{\text{t}}} = \frac{{\text{n}}}{{{\text{d}} + {\text{n}}}}$$
C $$\frac{{{\text{t}} + {\text{c}}}}{{\text{m}}} = \frac{{{\text{d}} + {\text{n}}}}{{\text{n}}}$$
D $$\frac{{\text{m}}}{{{\text{t}} + {\text{c}}}} = \frac{{\text{n}}}{{{\text{d}} - {\text{n}}}}$$
In which beam tension capacity of steel is greater than combined compression capacity of steel and concrete?
A Over-reinforced
B Under-reinforced
C Singly reinforced
D Doubly reinforced
The steel bars in a reinforced cement concrete beam are embedded __________ of the beam.
A In the center
B Near the bottom
C Near the top
D At any position
The moment of resistance of a balanced reinforced concrete beam is based on the stresses in
A Steel only
B Concrete only
C Steel and concrete both
D None of these
In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively
A Compressive and tensile
B Tensile and compressive
C Both compressive
D Both tensile
The bending moment at a section tends to bend or deflect the beam and the internal stresses resist its bending. The resistance offered by the internal stresses, to the bending, is called
A Compressive stress
B Shear stress
C Bending stress
D Elastic modulus
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
A $$\frac{{{\text{Shear force}}}}{{{\text{Lever arm}} \times {\text{Width}}}}$$
B $$\frac{{{\text{Lever arm}}}}{{{\text{Shear force}} \times {\text{Width}}}}$$
C $$\frac{{{\text{Width}}}}{{{\text{Lever arm}} \times {\text{Shear force}}}}$$
D $$\frac{{{\text{Shear force}} \times {\text{Width}}}}{{{\text{Lever arm}}}}$$
In a beam subjected to pure bending, the intensity of stress in any fibre is _________ the distance of the fibre from the neutral axis.
A Equal to
B Less than
C More than
D Directly proportional to
The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than
A 18 bar diameters
B 24 bar diameters
C 30 bar diameters
D 36 bar diameters

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