SFD and BMD example 1

The video tutorial demonstrates how to solve a shear force and bending moment problem for a simply supported beam. It begins with drawing a free body diagram and using equilibrium equations to find reaction forces. The tutorial then analyzes shear force and bending moment for different sections of the beam, using static equilibrium equations. Finally, it illustrates how to draw shear force and bending moment diagrams, highlighting changes in forces and moments across the beam.

What is the first step in solving a shear force and bending moment problem?

• Measure the length of the beam

• Identify the material of the beam

• Draw the free body diagram

• Calculate the bending moment

What is the reaction force at point B in the X direction?

• 0 Newtons

• 10 Newtons

• 30 Newtons

• 20 Newtons

How do you determine the shear force in the section between 0 to 2 meters?

• By measuring the beam

• Using the sum of forces in the Y direction

• By calculating the bending moment

• By applying a load

What is the bending moment equation for the section between 0 to 2 meters?

• M = 5X

• M = 30X

• M = 10X

• M = 20X

What happens to the shear force after the 30 Newton force in the section between 2 to 3 meters?

• It becomes zero

• It plummets

• It increases

• It remains constant

What is the bending moment equation for the section between 2 to 3 meters?

• M = 10X

• M = -20X + 60

• M = 5X + 10

• M = 30X

What is the value of the shear force between 0 to 2 meters?

• 30 Newtons

• 20 Newtons

• 10 Newtons

• 0 Newtons

What is the value of the shear force between 2 to 3 meters?

• -10 Newtons

• -20 Newtons

• 0 Newtons

• 10 Newtons

How is the bending moment diagram represented between 0 to 2 meters?

• As a curved line

• As a horizontal line

• As a vertical line

• As a sloped line

What is the purpose of shading the area under the shear force and bending moment diagrams?

• To highlight the maximum force

• To indicate the material strength

• To follow common convention

• To show the length of the beam