Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) tan(α - φ)/tanα None of these tan(α + φ)/tanα tanα/tan (α + φ) tan(α - φ)/tanα None of these tan(α + φ)/tanα tanα/tan (α + φ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.) None of these 2π. √(l/g) (1/2π). √(l/g) (1/2π). √(g/l) None of these 2π. √(l/g) (1/2π). √(l/g) (1/2π). √(g/l) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of moment of inertia of an area is kg-m2 m4 kg/m2 kg-m-s2 kg-m2 m4 kg/m2 kg-m-s2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The rate of doing work is known as Power Kinetic energy Potential energy None of these Power Kinetic energy Potential energy None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A couple produces Translatory motion Combined translatory and rotational motion None of these Rotational motion Translatory motion Combined translatory and rotational motion None of these Rotational motion ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Static friction is always __________ dynamic friction. Equal to None of these Less than Greater than Equal to None of these Less than Greater than ANSWER DOWNLOAD EXAMIANS APP
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