# RCC Structures Design

• ## 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
Explanation:

No answer description available for this question.

• ## To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is_____.

• A. 0.107 L
• B. 0.207 L
• C. 0.307 L
• D. 0.407 L
Explanation:

No answer description available for this question.

• ## 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_____.

• A. w (R + T)/T
• B. w √(R² + T²)/T
• C. w √(R + T)/T
• D. w (R/T)
Explanation:

No answer description available for this question.

• ## If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and σc are the modular ratio and maximum stress in the configuration of concrete, the strength of column is_____.

• A. σcAc + m σcAsc
• B. σc(A – Asc) + m σcAsc
• C. σc[A + (m – 1)Asc]
• D. All the above
Explanation:

No answer description available for this question.

• ## Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as_____.

• A. 1/8th of the span
• B. 1/10th of the span
• C. 1/12th of the span
• D. 1/16th of the span
Explanation:

No answer description available for this question.

• ## Pick up the correct statement from the following:

• A. A pile is a slender member which transfers the load through its lower end on a strong strata
• B. A pile is a slender member which transfers its load to the surrounding soil
• C. A pile is a slender member which transfers its load by friction
• D. A pile is a cylindrical body of concrete which transfers the load at a depth greater than its width
Explanation:

No answer description available for this question.

• ## The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation.

• A. m = 700/3C
• B. m = 1400/3C
• C. m = 2800/3C
• D. m = 3500/3C
Explanation:

No answer description available for this question.

• ## If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm² and 1400 kg/cm² respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is_____.

• A. 0.496 %
• B. 0.596 %
• C. 0.696 %
• D. 0.796 %
Explanation:

No answer description available for this question.

• ## The angle of internal friction of soil mass is the angle whose_____.

• A. Tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
• B. Sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
• C. Cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane to the normal pressure acting on the plane
• D. None of these
Explanation:

No answer description available for this question.

• ## The minimum number of main steel bars provided in R.C.C.

• A. Rectangular columns is 4
• B. Circular columns is 6
• C. Octagonal columns is 8
• D. All the above