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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  Test: Bond, Anchorage, Development Length & Torsion - Civil Engineering (CE) MCQ

Test: Bond, Anchorage, Development Length & Torsion - Civil Engineering (CE) MCQ


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10 Questions MCQ Test - Test: Bond, Anchorage, Development Length & Torsion

Test: Bond, Anchorage, Development Length & Torsion for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Test: Bond, Anchorage, Development Length & Torsion questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Bond, Anchorage, Development Length & Torsion MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Bond, Anchorage, Development Length & Torsion below.
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Test: Bond, Anchorage, Development Length & Torsion - Question 1
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The diagonal tension Which results in ultimate failure due to development of diagonal tension cracks, depends on

Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 1

Diagonal tension is caused by shear stress = Shear Force/ (b.d)
Thus, higher the effective depth lower will be the shear stress and lower will be the length of the crack.
Moreover, the shear tension crack develops only in the shear span. Lower the shear span (where shear force is constant) lower will be the length of the crack.

Test: Bond, Anchorage, Development Length & Torsion - Question 2
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The development length in compression for a 20 mm diameter deformed bar of grade Fe-415 embedded in concrete of grade M-25, whose design bond stress is 1.40 N/mm2 is

Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 2

For bars in compression the value of bond stress is increased by 25%.
For deformed bars value of bond stress is increased by 60%

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Test: Bond, Anchorage, Development Length & Torsion - Question 3
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The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist in that zone

Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 3

Reinforcing bars are provided at the support to develop adequate bond between concrete and steel, so that adequate bond stress is developed between them within development length.

Test: Bond, Anchorage, Development Length & Torsion - Question 4
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Consider the following statements:
1. Development length includes anchorage value of hooks in tension reinforcement.
2. The development length of each bar of bundled bars shall be that for the individual bar, increased by, 33% for three bars in contact. 
3. Deformed bars may be used without end anchorage provided development length requirement is satisfied.
Which of these statements is/are correct?
Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 4

In case of bundled bars in contact the development length is increased than that for individual bar by,
1. 10 % for two bars in contact
2. 20% for three bars in contact
3. 33% for four bars in content

Test: Bond, Anchorage, Development Length & Torsion - Question 5
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An RC structural member rectangular in cross section of width b and depth D is subjected to a combined action of bending moment M and torsional moment T. The longitudinal reinforcement shall be designed for a moment Me given by
Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 5

The longitudinal reinforcement shall be designed to resist an equivalent bending moment,

Test: Bond, Anchorage, Development Length & Torsion - Question 6
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Which one of the following is the correct expression to estimate the development length of deformed reinforcing bar as per IS code in limit state design?

where φ is diameter of reinforcing bar, σs is the stress in the bar at a section and ζbd is bond stress
Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 6

As per clause 26.2.1 of IS:456-2000, the development length Ld is given by,

where,

φ = nominal diameter of bar
σs = stress in the bar at the section considered at design load
ζbd = design bond stress for plain bars 

The value of ζbd should be increased by 60% for deformed bars.

Test: Bond, Anchorage, Development Length & Torsion - Question 7
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When HYSD bars are used in place of mild steel bars in a beam, the bond strength
Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 7

When HYSD bars are used in place of mild steel bars bond stress is increased by 60%.

Test: Bond, Anchorage, Development Length & Torsion - Question 8
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What is the bond stress acting parallel to the reinforcement on the interface between bar and concrete?
Test: Bond, Anchorage, Development Length & Torsion - Question 9
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What is the anchorage value of a standard hook of a reinforcement bar of diameter D?
Detailed Solution for Test: Bond, Anchorage, Development Length & Torsion - Question 9

As per clause 26.2.2.1 of IS : 456-2000, the anchorage value of a standard U-type hook shall be equal to 16 times the diameter of the bar

Test: Bond, Anchorage, Development Length & Torsion - Question 10
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The bond strength between steel and concrete is due to
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