The assumption made in the theory of the reinforced cement concrete beam is that

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 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

$$\frac{{{\text{Shear force}} \times {\text{Width}}}}{{{\text{Lever arm}}}}$$

A reinforced cement concrete beam is considered to be made of

A

Homogeneous material

B

Heterogeneous material

C

Composite material

D

Isotropic material

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

The rectangular beam 'A' has length ‘l’, width ‘b’ and depth ‘d’. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be _________ as compared to beam ‘A’.

A

Same

B

Double

C

Four times

D

Six times

A simply supported beam 'A' of length l, breadth b, and depth d carries a central point load W. Another beam 'B' has the same length and depth but its breadth is doubled. The deflection of beam 'B' will be __________ as compared to beam 'A'.

A

One-fourth

B

One-half

C

Double

D

Four times

The rectangular beam 'A ' has length l, width b and depth d. Another beam 'B' has the same width and depth but length is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.

A

Same

B

One-half

C

One-fourth

D

One-eighth

The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and width but depth is double that of 'A'. The elastic strength of beam B will be __________ as compared to beam A.

A

Same

B

Double

C

Four times

D

Six times

For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of

A

1 : 2

B

1 : 3

C

1 : 4

D

1 : 6

While estimating a reinforced cement structure, the omitted cover of concrete is assumed

A

At the end of reinforcing bar, not less than 25 mm or twice the diameter of the bar

B

In thin slabs, 12 mm minimum or diameter of the bar whichever is more

C

For reinforcing longitudinal bar in a beam 25 mm minimum or diameter of the largest bar which is more

D

All the above

The assumption made in the theory of the reinforced cement concrete beam is that

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