Day 28_worksheet_LSGD_ Steel structures

In a steel structure, lacing and battening are used in:

• a) Tension members
  

• b) Compression members
  

• c) Both tension and compression members
  

• d) Only trusses

In tension members, net sectional area is used for design because:

• a) It resists direct shear
  

• b) It resists bending moment
  

• c) It resists tensile stress after deduction for bolt holes
  

• d) It is greater than gross area

The most efficient section for a compression member (strut) is:

• a) Channel section
  

• b) T-section
  

• c) Box section
  

• d) Tubular section

Lug angles are used in tension members to:

• a) Increase the length of connection
  

• b) Reduce eccentricity
  

• c) reduce the length of the connection and mitigate shear lag
  

• d) Strengthen the end connection

Write the carbon content for mild steel, medium carbon steel and high carbon steel :

Riveted or bolted connections are primarily designed for:

• a) Bearing and shear
  

• b) Bending
  
  

• c) Axial tension
  

• d) Fatigue only

Assertion (A): A double angle section is preferred over a single angle for tension members.
Reason (R): Double angle sections reduce eccentricity and bending stress.

• a) Both A and R are true, and R is the correct explanation.
  

• b) Both A and R are true, but R is not the correct explanation.
  

• c) A is true, but R is false.
  

• d) Both A and R are false.

Light gauge steel members are generally hot-rolled sections.

• True
• False

In a riveted joint, pitch is measured along the direction of stress.

• True
• False

Match the following connection types with load transfer mechanisms:

A – Connection B – Load Transfer

a) Riveted i) Shear and bearing

b) Bolted ii) Fusion of metal

c) welded iii) Friction and bearing