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
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
The Castigliano’s second theorem can be used to compute deflections________________?
(A) in statically determinate structures only
(B) for any type of structure
(C) at the point under the load only
(D) for beams and frames only
The three moments equation is applicable only when___________________?
(A) the beam is prismatic
(B) there is no settlement of supports
(C) there is no discontinuity such as hinges within the span
(D) the spans are equal
The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in_________________?
(A) vertical direction
(B) horizontal direction
(C) inclined direction
(D) the direction in which the deflection is required
In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as__________________?
(A) L/EI
(B) L/2EI
(C) L/3EI
(D) L/4EI
In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always__________________?
(A) zero
(B) less than 1
(C) 1
(D) greater than 1
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 where j is number of joints and r is reaction components