Determine the equivalent nominal shear stress in a rectangular RCC beam of 200 mm width and 400 effective depth if the

shear force is 8 KN and torsional moment is 2 kN-m at factored loads. 

Match the following possible failure modes of an axially loaded column with their correct occurrence.

Identify whether the following statements regarding RCC columns are true or false.

Statement 1:

The cross-sectional area of longitudinal reinforcement, should neither be less than 0.8%

nor more than 6% of the gross cross- sectional area of the column. 

As per IS 456:2000, regarding thickness of edge of footing consider the following

assertions 

Assertion 1: In reinforced concrete footings, the thickness at the edge shall be not less

than 150 mm for footings on soil

Assertion 2 : In plain / unreinforced concrete footings, the thickness at the edge shall be

not less than 100 mm for footings on soil

Assertion (A): Under working loads, in a reinforced concrete beam the lever arm remains unchanged.

Reason (R) : As the bending moment increases, the total compressive force and tensile force are assumed to increase in

direct proportion. 

Assertion (A): In a plate girder of uniform cross- section, intermediate vertical stiffeners are

provided at closer spacing in the middle rather than at supports. 

In the design of prestressed concrete structure, which of the following limit states will

come under the limit states of serviceability?

1. Flexure

2. Shear

3. Deflection

4. Cracking 

Which of the following assumptions are correct for ideal beam behaviour?

1. The compression flange of the beam is restrained from moving laterally

2. The tension flange of the beam is restrained from moving laterally. 

Assertion (A): In structural bearing type joints, each connection is assumed to transmit its

proportional share of the applied load. 

Reason (R): Applied load passes through the centroid of the connector group.

Assertion (A) : Losses in pre-stress of pre- tensioned beam are more than the losses in

post-tensioned beam. 

Reason (R): This is partially due to the effect of elastic shortening.

Which one of the following statements is correct?

1. Maximum longitudinal reinforcement in an axially loaded short column is 6% of gross

    sectional areas 

2. Columns with circular section are provided with transverse reinforcement of helical

    type only 

3. Spacing of lateral ties cannot be more than 16 times the diameter of the tie bar

4. Longitudinal reinforcement bar need not be in contact with lateral ties

         Code:

The analysis of a two way slab is done using which of the following method?

I.  Marcus's method

Which one of the following is the correct statement? 

 In a gusseted base, when the end of the column is machined for complete bearing on the base plate, the axial load is

assumed to be transferred to the base plate 

Read the statements given below and choose the correct option:

I.  The water-cement ratio influences both the strength and durability of concrete.

II. Increasing water-cement ratio increases concrete strength.

If p is the net upward pressure on a square footing of side b for a square column of side a, the maximum bending

moment is given by 

The design for the limit state of collapse in flexure is based on the following assumptions:

1. Plane sections normal to the axis remain plane after bending

2. The maximum strain in concrete at the outermost tension fibre is 0.0035.

3. The relationship between the compressive stress distribution in concrete and the strain in concrete may

   be assumed to be rectangular, trapezoidal, parabolic or any other shape which results in prediction of

   strength in substantial agreement with the results of tests. 

Geopolymer concrete is cured typically at:

Proper experimental knowledge about the porosity and water absorption capacity of a coarse aggregate is

required as its affects the durability of concrete because of:

I.   Freezing and thawing

II.  Reaction with chemically reactive fluids

III. Increasing the workability of concrete