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Strength-of-materials Questions Set 34:

Quiz Mode

The value of Poisson's ratio for any isotropic material cannot exceed

0.25

0.3

0.5

Solution:

What is the power transmitted in the shaft at 75 rpm, given the torque is 4500 Nm?

15.327 kW

35.325 kW

70.425 kW

141.365 kW

Solution:

Which of the following rules is known as the “Prismoidal Rule”?

Mean sectional rule

Trapezoidal rule

Simpson’s rule

Mid sectional rule

Solution:

If the weight of the bar is 2 N and it is subjected to an axial pull of 60 N, then find the total load on the bar.

120 N

62 N

58 N

30 N

Solution:

The factor of safety (FOS) is based on which of the following?

Ultimate Tensile strength

Elastic strength

Yield strength

Fracture strength

Solution:

Which of the following values of shear stress (V) and bending moment (M) is correct for the conjugate beam with a free end?

V = 0, M = 0

V ≠ 0, M = 0

V = 0, M ≠ 0

V ≠ 0, M ≠ 0

Solution:

What is the approximate relationship between the coefficient of linear expansion (α) and the volumetric expansion coefficient (μ)?

None of the above

α = 3× μ

μ = 3× α

α = 1⁄ μ

Solution:

A 200 mm × 20 mm × 20 mm steel bar that is free to expand is heated from 15°C to 40°C. What will happen?

Tensile stress will develop

Compressive stress will develop

Shear stress will develop

No stress will develop

Solution:

Where will be the center of gravity of an I-section, if the dimensions of the upper web are 2x10 cm, the lower web is 2x20 cm, and the flange is 2x15 cm, and the y-axis passes through the center of the section?

7.611 cm

9.51 cm

11.5 cm

9.31 cm

Solution:

Calculate the shear stress acting along the neutral axis of a triangular beam section when a shear force of 32 kN acts on it. The base and height of the beam are 64 mm and 154 mm, respectively.

7.763 N/mm^2

9.987 N/mm^2

9.658 N/mm^2

8.658 N/mm^2

Strength-of-materials Questions Set 34:

The value of Poisson's ratio for any isotropic material cannot exceed

Solution:

What is the power transmitted in the shaft at 75 rpm, given the torque is 4500 Nm?

Solution:

Which of the following rules is known as the “Prismoidal Rule”?

Solution:

If the weight of the bar is 2 N and it is subjected to an axial pull of 60 N, then find the total load on the bar.

Solution:

The factor of safety (FOS) is based on which of the following?

Solution:

Which of the following values of shear stress (V) and bending moment (M) is correct for the conjugate beam with a free end?

Solution:

What is the approximate relationship between the coefficient of linear expansion (α) and the volumetric expansion coefficient (μ)?

Solution:

A 200 mm × 20 mm × 20 mm steel bar that is free to expand is heated from 15°C to 40°C. What will happen?

Solution:

Where will be the center of gravity of an I-section, if the dimensions of the upper web are 2x10 cm, the lower web is 2x20 cm, and the flange is 2x15 cm, and the y-axis passes through the center of the section?

Solution:

Calculate the shear stress acting along the neutral axis of a triangular beam section when a shear force of 32 kN acts on it. The base and height of the beam are 64 mm and 154 mm, respectively.

Solution:

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