Theory of Machine The maximum efficiency of spiral gears is (where θ = Shaft angle, and φ = Friction angle) sin (θ + φ) + 1/ cos (θ - φ) + 1 cos (θ - φ) + 1/ cos (θ + φ) + 1 cos (θ - φ) + 1/ sin (θ + φ) + 1 cos (θ + φ) + 1/ cos (θ - φ) + 1 sin (θ + φ) + 1/ cos (θ - φ) + 1 cos (θ - φ) + 1/ cos (θ + φ) + 1 cos (θ - φ) + 1/ sin (θ + φ) + 1 cos (θ + φ) + 1/ cos (θ - φ) + 1 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from 25°-30° 30°-40° 15°-25° 10°-15° 25°-30° 30°-40° 15°-25° 10°-15° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be Perpendicular to each other Parallel to each other Inclined at 45° Opposite to each other Perpendicular to each other Parallel to each other Inclined at 45° Opposite to each other ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, the amplitude of vibration Decreases exponentially with time Decreases linearly with time Increases linearly with time Increases exponentially with time Decreases exponentially with time Decreases linearly with time Increases linearly with time Increases exponentially with time ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Ackermann steering gear consists of Sliding pairs Turning pairs Higher pairs Rolling pairs Sliding pairs Turning pairs Higher pairs Rolling pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 3π Hz 6 Hz 3 Hz 6π Hz 3π Hz 6 Hz 3 Hz 6π Hz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS