For the design of a simply supported T-beam the ratio of the effective span to t

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Question
For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to
Options
A. 10
B. 15
C. 20
D. 25
E. 30

Correct Answer

20

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1. If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is
Options
A.
B.
C.
D.

5. The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of
Options
A. 10 mm
B. 15 mm
C. 20 mm
D. 25 mm
E. 30 mm

6. Pick up the assumption for the design of a prestressed concrete member from the following :
Options
A. A transverse plane section remains a plane after bending
B. During deformation limits, Hook's law is equally applicable to concrete as well as to steel
C. Variation of stress in reinforcement due to changes in external loading is negligible
D. All the above.

7. A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm² steel. If the modular ratio (m) is 15, the depth of the neutral axis, is
Options
A. 20 cm
B. 25 cm
C. 30 cm
D. 35 cm
E. 40 cm

10. As the percentage of steel increases
Options
A. depth of neutral axis decreases
B. depth of neutral axis increases
C. lever arm increases
D. lever arm decreases
E. none of these.

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