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If the permissible compressive stress for concrete in bending is C kg/m2, the modular ratio is:

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HPCL Engineer (Civil) 04 Nov 2022 Official Paper
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Detailed Solution

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Concept:

According to the work stress method:

Where C = compressive strength of concrete.

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More Working Stress Method Questions

Q1.In the cantilever retaining wall, the main steel reinforcement is provided at -
Q2.Assuming the stress block diagram of the rectangular concrete beam section as per IS 456 - 2000, the depth of the centre of compressive force measured from the neutral axis is given by: (Assuming Xu as the depth of neutral axis from top compression fiber)
Q3.A rectangular simply supported beam. of span 4 m is 300 mm × 700 mm in cross section and is reinforced with 3 bars of 20 mm on tension side at an effective cover of 50 mm. The beam experiences an imposed working load of 20 kN/m. Assume the density of concrete as 25 kN/m3 (including self-weight). What is the maximum bending moment?
Q4.If the permissible compressive stress for concrete in bending is C kg/m2, the modular ratio is:
Q5.Under working stress design method of concrete structures, calculate the modular ratio of M20 grade concrete subjected to compressive stress due to bending, if the permissible compressive stress for M20 grade concrete in bending is 7 N/mm2.
Q6.Following the working stress method of design as per IS 456:2000, calculate the modular ratio of M30 grade concrete subjected to compressive stress due to bending, considering the permissible compressive stress in M30 grade concrete in bending as 10 N/mm2.
Q7.Working stress method of design of reinforced concrete structures is also known as 
Q8.If permissible compressive stress in concrete in-bending for M20 grade of concrete is 7 N/mm2, then modular ratio will be : 
Q9.In a doubly reinforced rectangular concrete beam, the distance between the centroids of compression and tension reinforcements is generally known as
Q10.Which of the given following method is ensured adequate safety by suitably restricting the stress in the materials (i. e. concrete and steel) induced by the expected working leads on the structures.
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More Reinforced Concrete Structures Questions

Q1.In a singly reinforced beam, the reinforcement is provided in which zone?
Q2.How is the design shear strength of concrete (c ) influenced by the percentage (pt ) of tensile reinforcement in a beam?
Q3.Which type of reinforcement is called the main reinforcement in a one-way slab?
Q4.Which of the following will NOT prevent cracks resulting from sulphate attack?
Q5.In a reinforced concrete beam, what should the spacing of vertical stirrups be in terms of effective depth, to ensure adequate shear reinforcement as per IS 456:2000? 
Q6.The term 'eccentric footing' refers to a footing: 
Q7.Which type of footing is most commonly used when a column is placed near a property boundary, restricting footing extension on one side?
Q8.Which type of footing is preferred for closely spaced columns in a row?
Q9.Which of the following correctly represents the ultimate tensile force (Tu ) in the tensile reinforcement (As ) of a singly reinforced beam at the ultimate limit state of flexure, considering the characteristic yield strength of steel (fy )?
Q10.In RCC beams, which type of reinforcement is provided to resist shear?
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