Question:

Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reactioncomponents and 14 joints is

A.

2

B.

3

C.

6

D.

8

Answer» c. 6

Question:

The carryover factor in a prismatic member whose far end is fixed is

A.

0

B.

1/2

C.

3/4

D.

1

Answer» b. 1/2

Question:

Degree of kinematic indeterminacy of a pin-jointed plane frame is given by

A.

2j – r

B.

j – 2r

C.

3j – r

D.

2j + r

Answer» a. 2j – r

Question:

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

A.

1

B.

2

C.

3

D.

6

Answer» c. 3

Question:

Number of unknown internal forces in each member of a rigid jointed plane frame is

A.

1

B.

2

C.

3

D.

6

Answer» c. 3

Question:

When a series of wheel loads crosses a simply supported girder, the maximum bending momentunder any given wheel load occurs when

A.

the centre of gravity of the load system is midway between the centre of span and wheel load under consideration

B.

the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration

C.

the wheel load under consideration is midway between the centre of span and the centre of gravity of the load system

D.

none of the above

Answer» b. the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration

Question:

A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bendingmoment will be

A.

8 kn.m

B.

15 kn.m

C.

30 kn.m

D.

60 kn.m

Answer» c. 30 kn.m

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