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Design of Concrete Structures

If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section_______________?

If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section_______________?

A. depends on as, only
B. depends on aCbC only
C. depends on both crst and acbc
D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bend¬ing compression

If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section_______________? Read More »

Design of Concrete Structures, MCQs / Q&A

For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory_______________?

For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory_______________?

A. is always less than 1
B. is always greater than 1
C. can be more than 1
D. can be less than 1

For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory_______________? Read More »

Design of Concrete Structures, MCQs / Q&A

The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is______________?

The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is______________?

A. not needed
B. provided equally on inner and front faces
C. provided more on inner face than on front face
D. provided more on front face than on inner face

The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is______________? Read More »

Design of Concrete Structures, MCQs / Q&A

Due to circumferential action of the spiral in a spirally reinforced column________________?

Due to circumferential action of the spiral in a spirally reinforced column________________?

A. capacity of column is decreased
B. ductility of column reduces
C. capacity of column is decreased but ductility of column increases
D. both the capacity of column and ductility of column increase

Due to circumferential action of the spiral in a spirally reinforced column________________? Read More »

Design of Concrete Structures, MCQs / Q&A

The load carrying capacity of a helically reinforced column as compared to that of a tied column is about________________?

The load carrying capacity of a helically reinforced column as compared to that of a tied column is about________________?

A. 5% less
B. 10% less
C. 5% more
D. 10% more

The load carrying capacity of a helically reinforced column as compared to that of a tied column is about________________? Read More »

Design of Concrete Structures, MCQs / Q&A

The diameter of ties in a column should be_______________?

The diameter of ties in a column should be_______________?

A. more than or equal to one fourth of diameter of main bar
B. more than or equal to 5 mm
C. more than 5 mm but less than one-fourth of diameter of main bar
D. more than 5 mm and also more than one-fourth of diameter of main bar

The diameter of ties in a column should be_______________? Read More »

Design of Concrete Structures, MCQs / Q&A