ISRO 2023 Quiz 20 Revision

The strain energy due to torsion is (torsion = T; modulus of elasticity = E; moment of inertia = I; shear modulus = G; polar moment of area = J)

A rigid frame ABCD with vertical members AB and CD is pinned at A and roller supported at ‘D’. Horizontal member BC is loaded with vertical point load of 90 kN at the centre of BC . AB=BC=CD=3m. If support A rotates by rad, and also sinks downward by 30mm.

The reactions at A and D:

A moment ‘K’ required to rotate near end of a prismatic beam through a unit angle without translation, the far end being simply supported

The degree of static indeterminacy of pin-jointed space frame is given by:

If in a clock, 12 is replaced by 1, 11 by 2, 10 by 3 and so on, then what will be the time in that clock corresponding to ‘twenty minutes past three in the usual clock’?