Exercise: Strength Of Materials

Questions for: Strength Of Materials

The ratio of the moment of inertia of a circular plate and that of a square plate for equal depth, is
A:
less than one
B:
equal to one
C:
more than one
D:
equal to 3π/16
Answer: D

For circular plate, MI = π*d^4/64.

For square plate, MI = d^4/12.

So, Ratio = MI of circular plate/MI of square plate.

= 3*π/16.

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For a given material Young's modulus is 200 GN/m2 and modulus of rigidity is 80 GN/m2. The value of Poisson's ratio is
A:
0.15
B:
0.20
C:
0.25
D:
0.30
Answer: C
No answer description is available. Let's discuss.
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For a simply supported beam with a central load, the bending moment is
A:
least at the centre
B:
least at the supports
C:
maximum at the supports
D:
maximum at the centre.
Answer: D
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The maximum twisting moment a shaft can resist, is the product of the permissible shear stress and
A:
moment of inertia
B:
polar moment of inertia
C:
polar modulus
D:
modulus of rigidly.
Answer: C
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A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10, 000 kg, the corresponding maximum shearing stress being 30 kg/cm2. The depth of the beam is
A:
15 cm
B:
20 cm
C:
25 cm
D:
30 cm.
Answer: C
No answer description is available. Let's discuss.
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