Test: Shear


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10 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Shear

Test: Shear for Civil Engineering (CE) 2022 is part of GATE Civil Engineering (CE) 2023 Mock Test Series preparation. The Test: Shear questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Shear MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Shear below.
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Test: Shear - Question 1

For a reinforced concrete section, the shape of shear stress diagram is

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Test: Shear - Question 2

The ratio of permissible shear stress in limit state method of design and working stress method of design is

Detailed Solution for Test: Shear - Question 2

Permissible shear stress.
In limit state method of design,
τc = 0.25√fck
in working state method of design,
τc = 0.16√fck
∴ Ratio = 25/16

Test: Shear - Question 3

The contribution of bent up bars towards shear resistance shall not be more than

Detailed Solution for Test: Shear - Question 3

Total shear strength = shear resistance of effective concrete area as a function of longitudinal bars + shear resistance of vertical shear stirrups + shear resistance of-inclined shear stirrups.
Tests have shown that inclined bars alone do not provide a satisfactory solution and their contribution is limited to 50% of net shear strength after deducting the contribution of concrete. The remaining shear resistance is provided by vertical stirrups.

Test: Shear - Question 4

If the nominal shear stress (ζv) at a section does not exceed the permissible shear stress (τc)

Detailed Solution for Test: Shear - Question 4

If the calculated shear stress ( ζ​v ) is
(i) less than allowable shear stress (ζ​c) but more than 0.5ζ​c, the minimum shear reinforcement in the form of stirrups shall be provided such that,

(ii) more than ζ​c, shear reinforcement shall be provided in the form of vertical stirrups or bent up bars with stirrups or inclined stirrups to resist
Vus = Vu - τcbd. Here  τv < τc,max
(iii) If  τv >  τc,max redesign the section.

Test: Shear - Question 5

A beam of rectangular cross-section (b x d) is subjected to a torque T. What is the maximum torsional stress induced in the beam (b < d and α is a constant)?

Detailed Solution for Test: Shear - Question 5

Torsion constant of a rectangular section of width b and depth d (b < d) may be expressed as,
J = b3d

For T, L and / sections torsion constant,

where bi and di are the dimensions of each of the component rectangles into which the section may be divided.
Torsional shear stress for rectangular section

τ = T/αb2d

For T, L and / sections torsional shear stress may be calculated for each component rectangle by considering them subjected to torsional moment,

Test: Shear - Question 6

The minimum cover in a slab should neither be less than the diameter of bar nor less than

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Test: Shear - Question 7

The average permissible stress in bond for plain bars in tension is

Test: Shear - Question 8

When shear stress exceeds the permissible limit in a slab, then it is reduced by

Detailed Solution for Test: Shear - Question 8

Shear stress in slabs is controlled by increasing the depth of slab and not shear reinforcement while in beams shear stirrups are provided to control shear.

Test: Shear - Question 9

Flexural shear failure in a reinforced concrete beam
1. occurs under large bending moment and less shearforce
2. results in cracks which are normally at 90° with the horizontal
3. occurs when shear span to effective depth ratio is less than 1

Which of these statements are correct?

Test: Shear - Question 10

For M 20 grade of concrete, the maximum shear stress shall not exceed

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