Theory of Machine Efficiency of a screw jack is given by tanα/tan (α +φ) tan (α - φ)/tanα tan (α + φ)/tanα tanα/tan (α - φ) tanα/tan (α +φ) tan (α - φ)/tanα tan (α + φ)/tanα tanα/tan (α - φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Creep in belt drive is due to Uneven extensions and contractions due to varying tension Material of the pulley Material of the belt Larger size of the driver pulley Uneven extensions and contractions due to varying tension Material of the pulley Material of the belt Larger size of the driver pulley ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become 8 fn 4 fn 2 fn fn/2 8 fn 4 fn 2 fn fn/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is Fc = ar + b Fc = ar - b Fc = a/r + b Fc = ar Fc = ar + b Fc = ar - b Fc = a/r + b Fc = ar ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Klein's construction can be used when Crank has uniform angular acceleration Crank has non-uniform velocity Crank has a uniform angular velocity Crank has uniform angular velocity and angular acceleration Crank has uniform angular acceleration Crank has non-uniform velocity Crank has a uniform angular velocity Crank has uniform angular velocity and angular acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Inertia force acts Along the direction of acceleration force Opposite to the direction of acceleration force None of the listed here Perpendicular to the acceleration force Along the direction of acceleration force Opposite to the direction of acceleration force None of the listed here Perpendicular to the acceleration force ANSWER DOWNLOAD EXAMIANS APP
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