Exercise: Strength Of Materials

Questions for: Strength Of Materials

If the length of a cantilever carrying an isolated load at its free end is doubled, the deflection of the free end will increase by
A:
8
B:
1/8
C:
1/3
D:
2
Answer: A
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Strain energy of any member may be defined as work done on it
A:
to deform it
B:
to resist elongation
C:
to resist shortening
D:
all the above.
Answer: D
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If a circular beam of diameter d experiences a longitudinal strain and a lateral strain the volumetric strain is
A:
B:
C:
D:
Answer: B
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The stress necessary to initiate yielding, is considerably
A:
more than that necessary to continue it
B:
less than that necessary to continue it
C:
more than that necessary to stop it
D:
less than that necessary to stop it.
Answer: A
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The maximum compressive stress at the top of a beam is 1600 kg/cm2 and the corresponding tensile stress at its bottom is 400 kg/cm2 . If the depth of the beam is 10 cm, the neutral axis from the top, is
A:
2 cm
B:
4 cm
C:
6 cm
D:
8 cm
Answer: D
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