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

The degree of kinematic indeterminacy of a pin-jointed space frame is_____________?

A. 2j-r
B. 3j-r
C. J-2r
D. J-3r

The degree of static indeterminacy of a pin-jointed space frame is given by_________________?

A. M + r – 2j
B. M + r – 3j
C. 3m + r – 3j
D. M + r + 3j

A rigid-jointed plane frame is stable and statically determinate if_______________?

A. (m + r) = 2j
B. (m + r) = 3j
C. (3m + r) = 3j
D. (m + 3r) = 3j

If in a pin-jointed plane frame (m + r) > 2j, then the frame is________________?

A. Stable and statically determinate
B. Stable and statically indeterminate
C. Unstable
D. None of the above

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

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

A. 1
B. 2
C. 3
D. 6

In “full face” method of constructing tunnels, the first operation relates to______________?

A. Removal of bottom portion
B. Excavation of one drift in the centre
C. Removal of top portion
D. Excavation being done along the periphery

In the construction of Metro Railways, “Cut and Cover” method of construction is suitable in situations listed at________________?

ConSider the following situations
D. None of these

Assertion A : When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock. Reason R : A tunnel through rock, hard or soft, does not need any concrete lining________________?

A. Both a and r are true and r is the correct explanation of a
B. Both a and r are true but r is not the correct explanation of a
C. A is true but r is false
D. A is false but r is true