# Design of RC Structures Questions and Answers – Shear in Beams – Lattice-Girder Effect

This set of Design of RC Structures Multiple Choice Questions & Answers (MCQs) focuses on “Shear in Beams – Lattice-Girder Effect”.

1. What is the heaviest I section beam?
a) ISHB
b) ISLB
c) ISMB
d) ISWB

Explanation: Indian standards heavy weight beam is the heaviest I section beam.

2. Which of the rivet joint from following is free from bending stress?
a) Butt joint with double cover plates
b) Butt joint with single cover plates
c) Lap Joint with double cover plates
d) Lap joint with single cover plates

Explanation: When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as butt joint with double cover plates.

3. As compared to shop rivets, field rivets are stronger.
a) True
b) False

Explanation: Field rivets are weaker than shop rivets.

4. What is the minimum pitch of rivets?
a) 1.5d
b) 2.0d
c) 2.5d
d) 3.0d

Explanation: Minimum pitch of rivet = 2.5 time of its diamaeter.

5. A riveted joint which has the minimum pitch must have efficiency of ____
a) 30%
b) 40%
c) 50%
d) 60%

Explanation: According to IS:800, a riveted joint having minimum pitch must have efficiency of 60%.

6. Which of the following is most suitable for bolts?
a) To carry compression
b) To carry shear
c) To carry shear and bending
d) To carry axial tension

Explanation: Bolts are perfectly fit to carry axial tension because of its structure.

7. How is butt field specified as _______
a) Plate thickness
b) Effective Thickness
c) Size of weld
d) Penetration

Explanation: A butt-welding joint is made by gradually heating up the two weld ends with a weld plate and then joining them under a specific pressure.

8. What is the maximum slenderness ratio of lasing bars?
a) 100
b) 120
c) 150
d) 145

Explanation: According to IS 800, the slenderness ratio of lasing bars should not exceed 145.

Sanfoundry Global Education & Learning Series – Design of RC Structures