Rcc Structures Design(Civil Engineering ) Questions and answers for exam Preparation

Question 1. Distribution of shear intensity over a rectangular section of a beam, follows:

A circular curve
A straight line
A parabolic curve
An elliptical curve

Explanation:-

Answer: Option C. -> A parabolic curve

Question 2. In a simply supported slab, alternate bars are curtailed at

$${\frac{1}{4}^{{\text{th}}}}$$ of the span
$${\frac{1}{5}^{{\text{th}}}}$$ of the span
$${\frac{1}{6}^{{\text{th}}}}$$ of the span
$${\frac{1}{7}^{{\text{th}}}}$$ of the span

Explanation:-

Answer: Option D. -> $${\frac{1}{7}^{{\text{th}}}}$$ of the span

Question 3. In a pre-stressed member it is advisable to use

Low strength concrete only
High strength concrete only
Low strength concrete but high tensile steel
High strength concrete and high tensile steel

Explanation:-

Answer: Option D. -> High strength concrete and high tensile steel

Question 4. If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is

$$\frac{{\text{L}}}{2}\left( {1 - \frac{3}{{{{\text{q}}_{\max }}}}} \right)$$
$$\frac{{\text{L}}}{3}\left( {1 - \frac{5}{{{{\text{q}}_{\max }}}}} \right)$$
$$\frac{{\text{L}}}{2}\left( {1 - \frac{5}{{{{\text{q}}_{\max }}}}} \right)$$
$$\frac{{\text{L}}}{2}\left( {1 - \frac{2}{{{{\text{q}}_{\max }}}}} \right)$$

Explanation:-

Answer: Option C. -> $$\frac{{\text{L}}}{2}\left( {1 - \frac{5}{{{{\text{q}}_{\max }}}}} \right)$$

Question 5. If the shear stress in a R.C.C. beam is

Equal or less than 5 kg/cm2, no shear reinforcement is provided
Greater than 4 kg/cm2, but less than 20 kg/cm2, shear reinforcement is provided
Greater than 20 kg/cm2, the size of the section is changed
All the above

Explanation:-

Answer: Option D. -> All the above

Question 6. The load stress of a section can be reduced by

Decreasing the lever arm
Increasing the total perimeter of bars
Replacing larger bars by greater number of small bars
Replacing smaller bars by greater number of greater bars

Explanation:-

Answer: Option C. -> Replacing larger bars by greater number of small bars

Question 7. The horizontal portion of a step in a stairs case, is known as

Rise
Flight
Winder
Tread

Explanation:-

Answer: Option D. -> Tread

Question 8. The live load to be considered for an accessible roof, is

Nil
75 kg/m3
150 kg/m2
200 kg/cm2

Explanation:-

Answer: Option C. -> 150 kg/m2

Question 9. An under-reinforced section means

Steel is provided at the underside only
Steel provided is insufficient
Steel provided on one face only
Steel will yield first

Explanation:-

Answer: Option D. -> Steel will yield first

Question 10. The live load to be considered for an inaccessible roof, is

Nil
75 kg/m2
150 kg/cm2
200 kg/m2

Explanation:-

Answer: Option B. -> 75 kg/m2