Engineering Mechanics Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is bh3/8 bh3/36 bh3/4 bh3/12 bh3/8 bh3/36 bh3/4 bh3/12 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) tanα/tan (α + φ) tan(α - φ)/tanα tan(α + φ)/tanα None of these tanα/tan (α + φ) tan(α - φ)/tanα tan(α + φ)/tanα None of these 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 maximum efficiency of a screw jack is (1 + sinφ)/(1 - sinφ) (1 + tanφ)/(1 - tanφ) (1 - tanφ)/(1 + tanφ) (1 - sinφ)/(1 + sinφ) (1 + sinφ)/(1 - sinφ) (1 + tanφ)/(1 - tanφ) (1 - tanφ)/(1 + tanφ) (1 - sinφ)/(1 + sinφ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The rate of doing work is known as Kinetic energy None of these Power Potential energy Kinetic energy None of these Power Potential energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular velocity is m/min rad/s Revolutions/min Both (B) and (C) m/min rad/s Revolutions/min Both (B) and (C) ANSWER DOWNLOAD EXAMIANS APP
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