Applied Mechanics and Graphic Statics The condition of equilibrium for any system of forces in a plane is Both (A) and (B) That resultant couple must be zero None of these That polygon of forces must close Both (A) and (B) That resultant couple must be zero None of these That polygon of forces must close ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Total no of instantaneous centers of a machine having ‘n’ links, is n (n - 1)/2 n/2 (n - 1) n n (n - 1)/2 n/2 (n - 1) n ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ? i. 1.0 in from the wall ii. 1.732 m from the wall iii. 1.0 m above the floor iv. 1.732 m above the floor The correct answer is (i) and (iv) (ii) and (iv) (ii) and (iii) (i) and (iii) (i) and (iv) (ii) and (iv) (ii) and (iii) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The resultant of two forces acting at right angles is √34 kg and acting at 60° is 70 kg. The forces are √3 kg and √5 kg 3 kg and 5 kg 2 kg and 3 kg 1 kg and 4 kg √3 kg and √5 kg 3 kg and 5 kg 2 kg and 3 kg 1 kg and 4 kg ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The frequency of oscillation on moon as compared to that on earth, will be 2.44 times more 3 times less 2.44 times less 3 times more 2.44 times more 3 times less 2.44 times less 3 times more ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is 2/3 1/5 3/5 1/3 2/3 1/5 3/5 1/3 ANSWER DOWNLOAD EXAMIANS APP
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