Analysis of Determinate Structures: Interactive Learning Quizzes

Question 1

Which of the following is not a type of determinate frame?

Accepted Answer

Continuous frame

Answer

Pinned-pinned frame

Answer

Fixed-pinned frame

Answer

Fixed-fixed frame

Question 2

In a truss, what is the primary function of a zero-force member?

Accepted Answer

Providing structural stability

Answer

Resisting applied loads

Answer

Preventing excessive deflections

Answer

Transferring loads to the supports

Question 3

In a simply supported beam subjected to a uniformly distributed load, where is the location of maximum bending moment?

Accepted Answer

At the midpoint of the beam

Answer

At the ends of the beam

Answer

At a distance of L/3 from the supports

Answer

At a distance of L/4 from the supports

Question 4

Which of the following is not a method used for the analysis of determinate frames?

Accepted Answer

Matrix analysis

Answer

Method of sections

Answer

Method of joints

Answer

Method of superposition

Question 5

Which of the following is not an assumption made in the analysis of determinate structures?

Accepted Answer

The structure is statically indeterminate.

Answer

The structure is in equilibrium.

Answer

The structure is linearly elastic.

Answer

The loads acting on the structure are known.

Question 6

For a simply supported beam with a point load at mid-span, the:

Accepted Answer

Shear force is zero at the supports and the bending moment is maximum at mid-span.

Answer

Shear force is maximum at the supports and the bending moment is zero at mid-span.

Answer

Shear force and bending moment are both maximum at mid-span.

Answer

Shear force and bending moment are both zero at all points along the beam.

Question 7

A truss is considered statically indeterminate when:

Accepted Answer

The number of members is greater than 2 times the number of joints minus 3.

Answer

The number of members is equal to 2 times the number of joints minus 3.

Answer

The number of members is less than 2 times the number of joints minus 3.

Answer

The number of members is equal to 2 times the number of joints minus 3.

Question 8

Which of the following factors does not affect the stiffness of a structural member?

Accepted Answer

Type of loading

Answer

Cross-sectional area

Answer

Material properties

Answer

Length of the member

Question 9

The centroid of an area is the point where the total **moment** acting on the area is zero.

Accepted Answer

Moment acting on the area is zero.

Answer

Shear force acting on the area is zero.

Answer

Force acting on the area is zero.

Answer

Bending moment acting on the area is zero.

Question 10

The moment of inertia of an area is a measure of its **resistance to bending**.

Accepted Answer

Resistance to bending.

Answer

Resistance to compression.

Answer

Resistance to torsion.

Answer

Resistance to shear.

Question 11

The deflection of a beam is **inversely proportional** to its flexural rigidity.

Accepted Answer

The flexural rigidity of the beam.

Answer

The cube of the beam's depth.

Answer

The length of the beam.

Answer

The applied load.

Question 12

Analyze the impact of boundary conditions on the shear force and bending moment diagrams of beams. Provide specific examples to illustrate your explanation.

Accepted Answer

For simply supported beams, shear force and bending moment are zero at the supports.

Accepted Answer

Fixed beams have zero displacement and rotation at their supports.

Accepted Answer

Cantilever beams have zero shear force and bending moment at the free end.

Answer

Boundary conditions have no effect on shear force and bending moment diagrams of beams.

Question 13

Which of the following is a **determinate** structure?

Accepted Answer

Simply supported beam

Answer

Arch bridge

Answer

Continuous beam

Answer

Suspension bridge

Question 14

The reaction at the fixed support of a cantilever beam is:

Accepted Answer

Vertical and horizontal

Answer

Vertical only

Answer

Horizontal only

Answer

Moment only

Question 15

The shear force diagram for a simply supported beam with a point load at mid-span is **triangular**.

Accepted Answer

Triangular

Answer

Rectangular

Answer

Sinusoidal

Answer

Parabolic

Question 16

The bending moment diagram for a pin-jointed truss is **zero at the supports**.

Accepted Answer

Zero at the supports

Answer

Parabolic

Answer

Uniform throughout

Answer

Maximum at the supports

Question 17

The method of sections can be used to **determine internal forces** in a structure.

Accepted Answer

Determine internal forces in a structure

Answer

Analyze indeterminate structures

Answer

Design structural elements

Answer

Calculate natural frequencies

Question 18

The maximum deflection of a simply supported beam occurs at **mid-span**.

Accepted Answer

Mid-span

Answer

Support

Answer

Third-span

Answer

Quarter-span

Question 19

The stress at a point in a beam subjected to bending is:

Accepted Answer

Directly proportional to the bending moment

Answer

Inversely proportional to the bending moment

Answer

Independent of the bending moment

Answer

Proportional to the shear force

Question 20

Which of the following software is primarily used for structural analysis and design?

Accepted Answer

SAP2000

Answer

Google Sheets

Answer

Microsoft Word

Answer

AutoCAD

Question 21

The moment of inertia of a rectangular cross-section about its centroidal axis parallel to one side is given by:

Accepted Answer

bd^3/12

Answer

bd^3/6

Answer

bd^3/24

Answer

bd^3/48

Question 22

For a thin-walled cylindrical pressure vessel, the shear stress due to internal pressure is:

Accepted Answer

Proportional to the internal pressure and inversely proportional to the wall thickness

Answer

Independent of the internal pressure and wall thickness

Answer

Proportional to the internal pressure and directly proportional to the wall thickness

Question 23

The critical buckling load for a simply supported column is:

Accepted Answer

π^2EI/L^2

Answer

2π^2EI/L^2

Answer

2EI/πL^2

Answer

πEI/2L^2