Applied Mechanics and Graphic Statics Coefficient of friction depends on Both (A) and (B) Area of contact only Nature of surfaces only None of these Both (A) and (B) Area of contact only Nature of surfaces only None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is 30 60 50 80 30 60 50 80 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 100 kg 750 kg 50 kg 120 kg 100 kg 750 kg 50 kg 120 kg ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The condilion for a lifting machine to be reversible is that its efficiency should be less than 50% more than 66.67% more than 50% equal to 100% less than 50% more than 66.67% more than 50% equal to 100% ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be 5 m/sec None of these Zero 10 m/sec 5 m/sec None of these Zero 10 m/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The displacement of a particle which moves along a straight line is given by S = 4t³ + 3t²- 10 where ‘S’ is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is 1 sec 1.2 sec 1.5 sec ½ sec 1 sec 1.2 sec 1.5 sec ½ sec ANSWER DOWNLOAD EXAMIANS APP
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