Applied Mechanics and Graphic Statics On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts Towards the wall at its upper end Downwards at its upper end Away from the wall at its upper end Upwards at its upper end Towards the wall at its upper end Downwards at its upper end Away from the wall at its upper end Upwards at its upper end ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length Is not changed but weight of the bob is increased Must be decreased Must be increased Is not changed but weight of the bob is decreased Is not changed but weight of the bob is increased Must be decreased Must be increased Is not changed but weight of the bob is decreased ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The member forces in a statically in determinate truss Cannot be obtained by graphic statics Can be obtained by graphic statics May be obtained by graphic statics Can be obtained by graphic statics by trial and error Cannot be obtained by graphic statics Can be obtained by graphic statics May be obtained by graphic statics Can be obtained by graphic statics by trial and error ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics? Warren truss Fink truss King post truss Howe truss Warren truss Fink truss King post truss Howe truss ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’, is P² + Q² + 2PQ cos θ √(P² + Q² + 2PQ cos θ) P² + Q² + 2PQ tan θ P² + Q² + 2P sin θ P² + Q² + 2PQ cos θ √(P² + Q² + 2PQ cos θ) P² + Q² + 2PQ tan θ P² + Q² + 2P sin θ ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If two forces are in equilibrium, then the forces must (i) Be equal in magnitude (ii) Be opposite in sense (iii) Act along the same line (i) and (ii) Only (i) (i) and (iii) All (i), (ii) and (iii) (i) and (ii) Only (i) (i) and (iii) All (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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