If T and R are the tread and rise of a stair which carries a load w per square m

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If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is
Options
A.
B.
C.
D.
E.

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2. 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

3. According to load factor method, the permissible load W on a short column reinforced with longitudinal bars and lateral stirrups, is
Options
A. Stress in concrete x area of concrete
B. Stress in steel x area of steel
C. Stress in concrete x area of concrete + Stress in steel x area of steel
D. None of these.

4. The zone in which transverse bending is likely to occur may be obtained by drawing a line from the faces of the column making an angle ?� with horizontal where ?� is
Options
A. 30�
B. 45�
C. 60�
D. none of these.

5. In the zone of R.C.C. beam where shear stress is less than 5 kg/cm², nominal reinforcement is provided at a pitch of
Options
A. one-half lever arm of the section
B. one-third lever arm of the section
C. lever arm of the section
D. one and half lever arm of the section.

7. 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.

9. 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.

10. 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

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