Engineering Mechanics The maximum efficiency of a screw jack is (1 + tanφ)/(1 - tanφ) (1 + sinφ)/(1 - sinφ) (1 - tanφ)/(1 + tanφ) (1 - sinφ)/(1 + sinφ) (1 + tanφ)/(1 - tanφ) (1 + sinφ)/(1 - sinφ) (1 - tanφ)/(1 + tanφ) (1 - sinφ)/(1 + sinφ) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is mr²/6 mr²/8 mr²/2 mr²/4 mr²/6 mr²/8 mr²/2 mr²/4 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The units of moment of inertia of mass are kg/m kg-m² kg/m² m²/kg kg/m kg-m² kg/m² m²/kg ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The wheels of a moving car possess Kinetic energy of rotation only Potential energy only Kinetic energy of translation and rotation both Kinetic energy of translation only Kinetic energy of rotation only Potential energy only Kinetic energy of translation and rotation both Kinetic energy of translation only ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ratio of static friction to dynamic friction is always Greater than one None of these Equal to one Less than one Greater than one None of these Equal to one Less than one ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The angular velocity (in rad/s) of a body rotating at N revolutions per minute is πN/60 πN/180 2πN/180 2πN/60 πN/60 πN/180 2πN/180 2πN/60 ANSWER DOWNLOAD EXAMIANS APP
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