Virtual Labs

1. What does torsion refer to in a structural member?

a: Compression Explanation

Explanation

b: Twisting due to an applied torque Explanation

Explanation

c: Bending under transverse load Explanation

Explanation

d: Axial stretching Explanation

Explanation

2. Which property is primarily determined from a torsion test conducted within the elastic range?

a: Modulus of rigidity Explanation

Explanation

b: Young's modulus Explanation

Explanation

c: Bulk modulus Explanation

Explanation

d: Poisson's ratio Explanation

Explanation

3. The angle of twist of a shaft increases when

a: Torque increases Explanation

Explanation

b: Diameter increases Explanation

Explanation

c: Polar moment of inertia increases Explanation

Explanation

d: Modulus of rigidity increases Explanation

Explanation

4. The torsion equation is

\frac{T}{J}=\frac{G\theta}{L}

Explanation

\frac{T}{L}=\frac{GJ}{\theta}

Explanation

\frac{J}{T}=\frac{GL}{\theta}

Explanation

\frac{T}{J}=\frac{L}{G\theta}

Explanation

5. The polar moment of inertia of a solid circular shaft of diameter

d

\frac{\pi d^{4}}{64}

Explanation

\frac{\pi d^{3}}{32}

Explanation

\frac{\pi d^{4}}{32}

Explanation

\frac{\pi d^{2}}{4}

Explanation

6. Which graph is typically obtained in a torsion test?

a: Stress vs. Strain Explanation

Explanation

b: Torque vs. Angle of Twist Explanation

Explanation

c: Load vs. Extension Explanation

Explanation

d: Force vs. Time Explanation

Explanation

7. A longer shaft subjected to the same torque will

a: Experience a smaller angle of twist Explanation

Explanation

b: Experience a larger angle of twist Explanation

Explanation

c: Experience the same angle of twist Explanation

Explanation

d: Experience zero twist Explanation

Explanation

8. Which material property governs resistance to twisting?

a: Young's modulus Explanation

Explanation

b: Bulk modulus Explanation

Explanation

c: Modulus of rigidity Explanation

Explanation

d: Poisson's ratio Explanation

Explanation

9. During elastic torsion of a circular shaft, the maximum shear stress occurs at the

a: Centre Explanation

Explanation

b: Mid-radius Explanation

Explanation

c: Neutral axis Explanation

Explanation

d: Outer surface Explanation

Explanation

Torsion Test Experiment