Question:

Independent displacement components at each joint of a rigid-jointed plane frame are

A.

three linear movements

B.

two linear movements and one rotation

C.

one linear movement and two rotations

D.

three rotations

Answer» b. two linear movements and one rotation

Question:

Castigliano’s first theorem is applicable

A.

for statically determinate structures only

B.

when the system behaves elastically

C.

only when principle of superposition is valid

D.

none of the above

Answer» c. only when principle of superposition is valid

Question:

The deformation of a spring produced by a unit load is called

A.

stiffness

B.

flexibility

C.

influence coefficient

D.

unit strain

Answer» b. flexibility

Question:

The degree of static indeterminacy up to which column analogy method can be used is

A.

2

B.

3

C.

4

D.

unrestricted

Answer» b. 3

Question:

W Lx x

A.

0.211 l

B.

0.25 l

C.

0.234 l

D.

0.5 l

Answer» a. 0.211 l

Question:

Select the correct statement

A.

flexibility matrix is a square symmetrical matrix

B.

stiffness matrix is a square symmetrical matrix

C.

both (a) and (b)

D.

none of the above

Answer» c. both (a) and (b)

Question:

Bending moment at any section in a conjugate beam gives in the actual beam

A.

slope

B.

curvature

C.

deflection

D.

bending moment

Answer» c. deflection

Question:

While using three moments equation, a fixed end of a continuous beam is replaced by anadditional span of

A.

zero length

B.

infinite length

C.

zero moment of inertia

D.

none of the above

Answer» a. zero length

Question:

The number of independent equations to be satisfied for static equilibrium in a space structure is

A.

2

B.

3

C.

4

D.

6

Answer» d. 6