Some Important Question for Mechanics
of Materials & Structures With Answer
1. When
a rectangular beam is loaded transversely the maximum compressive stress is
developed on the :
a) Top
layer
b) Bottom
layer
c) Neutral
axis
d) Every
cross section
2. A
simply supported beam of span L carries a uniformly distributed load W. the
maximum bending moment, M is :
a) WL/2
b) WL/4
c) WL/8
d) WL/16
3. Fatigue
is the failure of material under :
a) Constant
loads but occasionally well above static load
b) Varying
loads, well below ultimate static load
c) Constant
loads well below ultimate static load
d) Varying
loads well above ultimate static load
4. If
a road simultaneously pulled at both of its ends, it will be a case of :
a) Axial
loading
b) Vertical
loading
c) Horizontal
loading
d) None
of these
5. A
member which does not regain its original shape after the load producing
deformation is removed, is said to be :
a) Plastic
b) Elastic
c) Rigid
d) None
of the above
6. The
law which states with within elastic limits strain produced in proportional to
stress producing it is known as :
a) Bernoulli’s
law
b) Stress
law
c) Hooke’s
law
d) Poisson’s
law
7. The
ratio of the largest load in a test to the original crosssectional area of the
piece is called :
a) Elastic
limit
b) Ultimate
stress
c) Yield
stress
d) Breaking
stress
8. The
bending moment at a section tends to bend or deflect the beam and internal
stresses resist its bending. The resistance offered by the internal stress to
the bending, is called :
a) Compressive
stress
b) Shear
stress
c) Bending
stress
d) Elastic
modulus
9. Tensile
internal force tends to :
a) Crush
the member
b) Elongate
the member
c) Shorten
the member
d) Smash
the member
10. The
magnitude of a shear force at a distance of L/4 from either end of a simply
supported beam with load P applied at mid span is equal to :
a) P
b) P/2
c) P/4
d) P/8
Q

Ans

Q

Ans

1

a

6

c

2

c

7

b

3

b

8

c

4

a

9

c

5

a

10

b

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