62.

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68.

110/23

Two materials are having moduli of elasticity, moduli of rigidity and bulk modulus as
(E1.E2), (N1.N2) and (K1,K2). The modulus ratio is given by

A) E1/C2 B) E1/K2
C) E1/E2 D) C1/K2

The elongation produced in a rod (by its own weight) of length (/) and diameter (d)
rigidly fixed at the upper end and hanging freely is equal to

wi wi?

^ ‏ع2‎ 5 ट
wih wit

c) — D) ರ್ವ
) 2E ) 2E

The work done in producing strain on a material per unit volume is called
A) Resilience 8) Ductility
C) Elasticity D) Plasticity

A simply supported beam carries a uniformly distributed load of w N per unit length
over the whole span (/). The point of contra flexure is

A) At the supported end

B) At the middle of the beam

C) A distance 1/4 from the supported end
)

D) None of the above

A solid circular shaft of diameter D carries an axial load W, if the same load is applied
axially on a hollow circular shaft of inner diameter D/2, the ratio of stresses in a solid
shaft to that of hollow shaft would be

A) 1/2 8) 1/4 C) 4/3 D) 3/4

A simply supported beam carries a uniformly distributed load over the whole span.
The deflection at the centre is ‘y’. If the distributed load per unit length is doubled
and also depth of the beam is doubled then the deflection at the centre would be

A) 2y B) 4y C) yi2 டு ೫8

The hoop or circumferential stress in a riveted cylindrical shell, when subjected to
an internal pressure (p) is equal to
pD 00 00 00
2 B) — 0 ‏ہے‎ 0
4111 ) 4t ) 211 ) 2