THEORY OF STRUCTURES QUIZ

The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is

2/3

1/4

1/2

1/3

TRUE ANSWER : ?
YOUR ANSWER : ?

The strain energy stored in a spring when subjected to greatest load without being permanently distorted, is called

Proof stress

Stiffness

Proof load

Proof resilience

TRUE ANSWER : ?
YOUR ANSWER : ?

For the close coil helical spring of the maximum deflection is

WD3n/d4N

4W²D3n/d4N

2WD3n/d4N

8WD3n/d4N

TRUE ANSWER : ?
YOUR ANSWER : ?

A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm², the bending strain energy stored in the bar, is

511 N mm

611 N mm

711 N mm

411 N mm

TRUE ANSWER : ?
YOUR ANSWER : ?

The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is

3.50 cm

3.00 cm

2.75 cm

4.25 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick up the correct statement from the following:

If tensile stress is less than axial stress, the section experiences compressive stress

If tensile stress is equal to axial stress, the section experiences compressive stress

The moment of inertia is calculated about the axis about which bending takes place

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

constant, depth of a cantilever of length of uniform strength loaded with Keeping breadth uniformly distributed load varies from zero at the free end and

3w l at the fixed end

w l) at the fixed end

2w w l at the fixed end

l) at the fixed end

TRUE ANSWER : ?
YOUR ANSWER : ?

A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 × 106 N/mm², the deflection of the free end, is

2 mm

5 mm

3 mm

4 mm

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is

1/8

1/12

1/16

1/10

TRUE ANSWER : ?
YOUR ANSWER : ?

The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

WL²/2EI

WL²/3EI

WL3/3EI

WL3/2EI

TRUE ANSWER : ?
YOUR ANSWER : ?