Engineering Mechanics A screw jack used for lifting the loads is A non-reversible machine A reversible machine None of these An ideal machine A non-reversible machine A reversible machine None of these An ideal machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The principle of transmissibility of forces states that, when a force acts upon a body, its effect is Minimum, if it acts at the center of gravity of the body Same at every point on its line of action Different at different points on its line of action Maximum, if it acts at the center of gravity of the body Minimum, if it acts at the center of gravity of the body Same at every point on its line of action Different at different points on its line of action Maximum, if it acts at the center of gravity of the body ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A framed structure is imperfect, if the numbers of members are __________ (2j - 3). Either (B) or (C) Greater than Equal to Less than Either (B) or (C) Greater than Equal to Less than 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 Twice the area of the triangle Half the area of the triangle Area of the triangle None of these Twice the area of the triangle Half the area of the triangle Area of the triangle None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The mechanical advantage of a lifting machine is the ratio of All of these Load lifted to the effort applied Distance moved by effort to the distance moved by load Output to the input All of these Load lifted to the effort applied Distance moved by effort to the distance moved by load Output to the input ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base. Four times Two times Six times Nine times Four times Two times Six times Nine times ANSWER DOWNLOAD EXAMIANS APP
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