Applied Mechanics and Graphic Statics In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is 25 5 1.5 314 25 5 1.5 314 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are: 3 m/sec and 2 m/sec 3 m/sec and 3 m/sec 2 m/sec and 2 m/sec 4 m/sec and 6 m/sec 3 m/sec and 2 m/sec 3 m/sec and 3 m/sec 2 m/sec and 2 m/sec 4 m/sec and 6 m/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The maximum frictional force which comes into play, when a body just begins to slide over the surface of a another body, is known None of these Rolling friction Limiting friction Sliding friction None of these Rolling friction Limiting friction Sliding friction ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is ½, the velocities of separation of the balls will be equal to Original velocity in the opposite direction Original velocity in the same direction Half the original velocity in the same direction Half the original velocity in the opposite direction Original velocity in the opposite direction Original velocity in the same direction Half the original velocity in the same direction Half the original velocity in the opposite direction ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A point subjected to a number of forces will be in equilibrium, if Algebraic sum of the moments of the forces about the point is zero Algebraic sum of the forces is zero Sum of resolved parts in any two directions at right angles, are both zero Two resolved parts in any two directions at right angles are equal Algebraic sum of the moments of the forces about the point is zero Algebraic sum of the forces is zero Sum of resolved parts in any two directions at right angles, are both zero Two resolved parts in any two directions at right angles are equal ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If a set of given forces are such that their free vectors build a closed polygon, then The resultant force and resultant couple both may not be zero The resultant force and resultant couple are always zero The resultant force is zero but resultant couple is not zero The resultant force is zero but resultant couple may not be zero The resultant force and resultant couple both may not be zero The resultant force and resultant couple are always zero The resultant force is zero but resultant couple is not zero The resultant force is zero but resultant couple may not be zero ANSWER DOWNLOAD EXAMIANS APP
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