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. Nine times Six times Four times Two times Nine times Six times Four times Two times ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The centre of gravity of a uniform lamina lies at The midpoint of its axis The bottom surface The centre of heavy portion All of these The midpoint of its axis The bottom surface The centre of heavy portion All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is ml2/8 ml2/12 ml2/4 ml2/ 6 ml2/8 ml2/12 ml2/4 ml2/ 6 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a single purchase crab winch can be increased by Increasing the radius of the load drum Increasing the number of teeth of the pinion All of these Increasing the length of the handle Increasing the radius of the load drum Increasing the number of teeth of the pinion All of these Increasing the length of the handle ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.) P = W (cosα + μsinα) P = W (sinα + μcosα) P = W tanα P = W tan (α + φ) P = W (cosα + μsinα) P = W (sinα + μcosα) P = W tanα P = W tan (α + φ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The acceleration of a body sliding down an inclined surface is g cosθ g tanθ g sinθ None of these g cosθ g tanθ g sinθ None of these ANSWER DOWNLOAD EXAMIANS APP
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