Engineering Mechanics In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load. Less than More than Equal to None of these Less than More than Equal to None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys. Second Third None of these First Second Third None of these First ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called Principle of conservation of momentum Newton's second law of motion Principle of conservation of energy Newton's first law of motion Principle of conservation of momentum Newton's second law of motion Principle of conservation of energy Newton's first law of motion ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to None of these Half the area of the triangle Area of the triangle Twice the area of the triangle None of these Half the area of the triangle Area of the triangle Twice the area of the triangle ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A body of mass ‘m’ moving with a constant velocity ‘v’ strikes another body of same mass moving with same velocity but in opposite direction. The common velocity of both the bodies after collision is 8v 4v v 2v 8v 4v v 2v ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is (p² + q²)/4 (4p² - q²)/6 [√(4p² - q²)]/6 (p² - q²)/4 (p² + q²)/4 (4p² - q²)/6 [√(4p² - q²)]/6 (p² - q²)/4 ANSWER DOWNLOAD EXAMIANS APP
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