# Design of RC Structures Questions and Answers – Bonds – Anchoring Bars

This set of Design of RC Structures Multiple Choice Questions & Answers (MCQs) focuses on “Bonds – Anchoring Bars”.

1. How is shear reinforcement provided?
a) In the form of vertical bars
b) In the form of inclined bars
c) By the combination of vertical and inclined bars
d) Any one of the combination

Explanation: Shear reinforcement can be provided by any of the combination of vertical or inclined as long as shear is resisted.

2. The shape of aggregate which is best for interlocking is _____
a) Angular
b) Rounded
c) Elongated
d) Edgy

Explanation: Angular shaped aggregate increases the interlocking in concrete as cement is easily bounded on it.

3. The section in which quantity of steel required is different in tension and compression.
a) Balanced
b) Under Balanced
c) Over Balanced
d) Unbalanced

Explanation: This is a section in which quantity of steel required is different from that in balanced section.

4. Which IS code is followed for designing medium tensile conforming bars?
a) IS 456
b) IS 3320
c) IS 432
d) IS 1139

Explanation: IS 432 is used for medium tensile conforming bars and IS 1139 is followed for medium tensile steel bars.

5. After curing concrete for 28 days, how much strength will it attain?
a) 10-20%
b) 20-50%
c) 50-80%
d) 90-95%

Explanation: Normally concrete is cured for 28 days to check its compressibility because it attains of about 90-95% of its strength in that period.

6. What is the size of vicat needle used for cement testing?
a) 10mm Dia
b) 1mm Square
c) 3mm Square
d) 15 mm Dia

Explanation: Vicat’s apparatus consists of an arrangement to hold the plunger of 10 mm diameter and two other needles which are made to freely fall into a mould filled with the cement paste and the amount of penetration of the needles of plunder can be noted using the vertical graduations from 0 mm to 50 mm.

7. Relative density of a compacted dense sand is approximately equal to _______
a) 0.4
b) 0.6
c) 0.95
d) 1.20

Explanation: According to code of Indian Standards, the Relative density of compacted dense sand is about 0.95.

8. Select the statically determinate structure from the following.
a) Fixed beam
b) Overhanging and simply supported beams
c) Continuous beams
d) Only simply supported beams

Explanation: The static equilibrium equations are enough to determine all the internal forces in it so they are statically determinate structure.

9. A fully saturated soil is _____
a) Two phase system with air and water
b) One phase with only water
c) One phase with only air
d) Three phase

Explanation: A fully saturated soil contains both air and water.

Sanfoundry Global Education & Learning Series – Design of RC Structures

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