Applied Mechanics and Graphic Statics The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is band the vertical side is a, from its vertical face is (b² + bc + c²)/3 (b + c) None of these (a² + ab + b²)/3 (a + b) (a² + ab + c²)/3 (a + c) (b² + bc + c²)/3 (b + c) None of these (a² + ab + b²)/3 (a + b) (a² + ab + c²)/3 (a + c) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is 750 kg 50 kg 100 kg 120 kg 750 kg 50 kg 100 kg 120 kg ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Time period and length of a second’s pendulum respectively are 2 sec and 99.4 cm 1 sec and 99.4 cm 2 sec and 92.7 cm 1 sec and 92.7 cm 2 sec and 99.4 cm 1 sec and 99.4 cm 2 sec and 92.7 cm 1 sec and 92.7 cm ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics When a body falls freely under gravitational force, it possesses Maximum weight No weight No effect on its weight Minimum weight Maximum weight No weight No effect on its weight Minimum weight ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down Momentum of rubber ball is less than that of lead ball Rubber and lead balls undergo equal changes in momentum None of these Change in momentum suffered by lead ball is less that of rubber ball Momentum of rubber ball is less than that of lead ball Rubber and lead balls undergo equal changes in momentum None of these Change in momentum suffered by lead ball is less that of rubber ball ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Time of flight of a projectile on a horizontal plane, is 2u cotα/g 2u sinα/g 2u cosα/g 2u tanα/g 2u cotα/g 2u sinα/g 2u cosα/g 2u tanα/g ANSWER DOWNLOAD EXAMIANS APP
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